hybridfree/eevblog-posts huggingface dataset:
PC/laptop working and processing so much harder on low quality data connection - Page 1
Forum section: electronics / general

author: abdulbadii
author_rank: Frequent Contributor
timestamp: June 25, 2022, 04:33:49 am
content: Why PC, mainly laptop, wifi is working and processing so much harder and more heavily when the internet data it receives is at low speed and/or intermittent, as opposed and not due to weak wifi signal strength i.e. its low dB.What actually is whichever processor(s) is/are working and/or searching on, and what actually has triggered it/them to obligatorily working and processing in such the mentioned conditioned ?How do we mitigate or solve this (mainly my) problem ?

author: Halcyon
author_rank: Unknown
timestamp: June 26, 2022, 03:59:25 am
content: I'm not sure what you mean by this? This is something I haven't noticed on any machine, ever...Typically higher data rates require more processing power to cope with the data rate, not the other way around.

author: DiTBho
author_rank: Super Contributor
timestamp: June 26, 2022, 08:45:28 am
content: Quote from: Halcyon on June 26, 2022, 03:59:25 amMy old Lenovo Carbon X1 2015 showed me something similar under Windows 10.I sold the laptop, and bought an Apple M1, I have never verified with Linux and It's too late nowedit:typo

author: Halcyon
author_rank: Unknown
timestamp: June 26, 2022, 08:49:32 am
content: Quote from: DiTBho on June 26, 2022, 08:45:28 amSounds like a driver issue more than anything. I mean I'm not a programmer, but in my real-world experience, low bit rates over a normally fast interface does not equate to increased system load.

author: DiTBho
author_rank: Super Contributor
timestamp: June 26, 2022, 09:03:36 am
content: Quote from: Halcyon on June 26, 2022, 08:49:32 amYup, precisely what I mean: probably we are talking about bugs and/or defects with the OS.I didn't have the time to check for a WiFi driver alternative, I received the laptop already installed and I simply used it as-is.Now I am reverse engineering a USB device that only runs on Windows XP, and I see there are stupid running programs with fancy names that monitors the WiFi and increase the system load for silly reasons.Again, I don't have the time to investigate so ... as a workaround I'm using a wired connection and the problem has magically vanished.This, or ... it's just that the Wifi hates me, dunno
Windows XP, how to clean register from unused USB devices? - Page 1
Forum section: electronics / general

author: DiTBho
author_rank: Super Contributor
timestamp: June 04, 2022, 01:45:25 pm
content: so, I have to use a USB-sniffer on a Windows XP machine in order to understand how an abandoned USB device works.But before attaching the USB-sniffer I need to clean out all the unused but registered USB-devices.The list is toooooooooooooooooooo long. You attache an iPod? Windows XP registers its VID:PID somewhere.How to clean?

author: Ian.M
author_rank: Super Contributor
timestamp: June 04, 2022, 01:57:14 pm
content: Nirsoft USBDeviewhttps://www.nirsoft.net/utils/usb_devices_view.htmlYou can sort by connected status, then select multiple devices by shift or ctrl clicking and bulk uninstall them.

author: Jeroen3
author_rank: Super Contributor
timestamp: June 04, 2022, 03:37:21 pm
content: There exists GhostBuster to delete all unplugged USB devices.https://bitbucket.org/wvd-vegt/ghostbuster/src/master/Especially helpful when you've run out of all 256 COM ports.

author: fordem
author_rank: Regular Contributor
timestamp: June 07, 2022, 05:53:37 pm
content: At a command prompt enter the following lineset devmgr_show_nonpresent_devices=1devmgmt.mscThe device manager applet will open, click the view menu tab and select show hidden devices.Scroll down to the USB devices and delete anything/everything that has been "greyed out"
Dell 5100 laptop with bad video card and/or display (or what???) - Page 1
Forum section: electronics / general

author: 13hm13
author_rank: Frequent Contributor
timestamp: June 10, 2022, 04:11:38 pm
content: Laptop: Dell 5100 (2003). Note this is a different 5100 than the one I posted about in the 5100 memory/RAM thread elsewhere on EEVBlog. I bought this (2nd) 5100 from a local thrift store, for parts or possible full repair. I have no clue as to its history.When the pwr button is displayed, I should get the BIOS bootup screen (there is no HDD in this laptop). But I get a fuzzy, distorted screen:It should look like this:I'm getting no LED (coded) error message, and the other functions like battery charge and automatic power-off and no-memory detect are all normal. Just that display!Too bad I can't boot to the VGA output port!Anyway, on first hunch, please take a guess as to what the display issue may be?UPDATE:Connected an external VGA monitor and then did a Fn+F8 to switch to the external monitor .... and I have a good display.So I assume the LCD panel is toast? Or is it? Can it be some connector / corrosion issue?
Dual boot Issues - Page 1
Forum section: electronics / general

author: Ario
author_rank: Regular Contributor
timestamp: May 03, 2022, 07:44:30 pm
content: Hi here,I have a debian and windows10 dual boot. Stuff happend:( My debian is booting fine on grub2. My windows 10 is not. I want to use a repair usb so to repair my windows OS. How can I ensure that a repair disc tries to repair my windows partition, without wiping or destroying my debian. Can someone please suggest some option I could try, or the safest option. My efi prtition is likey corrupted? The actual win partition on sda3 is still safe at the moment.Any help or advice will be appreciated greatly!RegardsArio

author: PKTKS
author_rank: Super Contributor
timestamp: May 04, 2022, 07:54:19 am
content: Not a simple answer..In reality best thing is keeping efi just for MSUNIX does not requires efi at allIt can boot better with other tools.But that trick is getting harder every step the big corp take to lock x86Paul

author: Doctorandus_P
author_rank: Super Contributor
timestamp: May 28, 2022, 10:58:43 pm
content: Why not just shove in an extra SSD?Then you also don't have to mess with bootloaders, as the UEFI / BIOS usually has some key combination to bring up a boot menu or switch boot media.
What are these PCE-5126 CPU stand-off boards ? - Page 1
Forum section: electronics / general

author: MathWizard
author_rank: Super Contributor
timestamp: June 03, 2022, 04:39:06 am
content: I've never see a modern CPU on card like that before, are they for servers, data centers, etc ?Can they run them together like Sli or Crossfire, or like super-computers ? They look pretty cool.https://datasheet.datasheetarchive.com/originals/library/Datasheets-AQ2/DSAAQ0031728.pdf

author: coromonadalix
author_rank: Super Contributor
timestamp: June 09, 2022, 02:23:52 pm
content: Normally called SBC board or single board computerit depend of the backplane / base board, some of them looks like an pci bus port, vey old models had an isa bus etc ...some of them can be autonomous IE: no backplane needed
Windows 7 delete partition - Page 1
Forum section: electronics / general

author: jpanhalt
author_rank: Super Contributor
timestamp: May 12, 2022, 12:12:10 pm
content: My D (data) drives are RAID1. When I built the PC in 2015, I partitioned that 500GB pair with a partition (E) for temporary junk from the previous PC. Instructions for Win7 to delete a partition refer to using IM-Magic Partition resizer. It also mentions that using the Windows system, the volume does not actually disappear. That partition is now empty. Drives are Samsung SSD.1) I usually go to a developer's site to download free software. Is this the actual developer's site:https://www.resize-c.com/If not, is there a safe site? I do not use CNET based on a bad experience years ago.2) When the partition is deleted, is the whole drive available? Is the partition letter available for a new drive?

author: madires
author_rank: Super Contributor
timestamp: May 12, 2022, 01:12:18 pm
content: I also downlowd stuff from the original website, Those download sites often add some nasty extras (dubious tools) to the installer to earn money. When you delete a partition on a drive (or RAID) with multiple partitions then the other partitions remain. You can easily resize the partition in front of the deleted one to add the freed space.

author: coromonadalix
author_rank: Super Contributor
timestamp: May 16, 2022, 12:39:32 pm
content: exactlyany deleted partitions could be or not be the full hdd size, you can have many partitions on a drive ...

author: m k
author_rank: Super Contributor
timestamp: May 16, 2022, 03:37:08 pm
content: Not actually disappear means that no actual deletion has happened so data is still intact, only its pointer is zeroed.Means also that recovery is possible until its area is overwritten, just like with undeleting files.Windows drive letters are not assigned by default, so next available is what new one gets.That doesn't mean that new order is what you want, there are priorities, like internal over external and so on.Means also that generally every boot does its shuffle and multiple thumb drives can be a hassle.
AMD Socket AM5 Video - Page 1
Forum section: electronics / general

author: xrunner
author_rank: Super Contributor
timestamp: May 25, 2022, 02:15:14 am
content: I was interested in the new AMD socket AM5 and ran across this video. Apparently MSI posted it but wasn't supposed to ... but someone else captured it and reposted it. I guess it isn't all that super-exciting but it does show the direction they went. Sortof like Intel sockets.Here's a link to it if anyone is interested -Socket AM5 Video

author: Monkeh
author_rank: Super Contributor
timestamp: May 25, 2022, 03:19:07 am
content: I was wondering when they'd finally embrace LGA.That heatspreader's chunky, I wonder how thick their die stack is.

author: mariush
author_rank: Super Contributor
timestamp: May 25, 2022, 03:43:34 am
content: Metal heatsink is like that to have the same final height as a socket AM4 cpu would.It allows reuse of socket AM4 coolers - the boards have same screw holes, same metal backplate, same plastic clips that can be removed if the cooler uses screws...etc...Saves money and reduces waste.

author: Berni
author_rank: Super Contributor
timestamp: May 25, 2022, 05:15:09 am
content: Yeah thing is that the LGA socket is a lot thinner than the PGA ZIF socket it used before. So in order to be compatible with old heatsinks they seam to have made up the height in the heat spreader.Perhaps with the new chiplet design the thick heatspreader can be useful in getting the cooling performance to the parts that need it the most.I was more of a fan of the PGA design since it is more robust. The LGA pins can get easily damaged if you are clumsy and drop the corner of a CPU in the socket while putting it in. I guess more of an LGA advantage is that they can get more pins in the same area and they are well suited for high speed. Something that definitely comes in useful with the huge amount of IO these new AM5 chips are supposed to be capable of.
selfextracting Zip file - Page 1
Forum section: electronics / general

author: BeBuLamar
author_rank: Super Contributor
timestamp: May 14, 2022, 01:50:34 pm
content: I have a problem last night that I downloaded the Flukeview Forms update from Fluke. It's an *.exe file that is self extracting. Running the file it shows that it extracting and then run a setup problem for a different software altogether. It took me a few hours to figure out what it was. I run the file in the downloads folder which has many setup.exe files so it would run whatever setup file it found. I moved the file to an emply folder and it works fine.
hd not showing up in explorer win 7 sp1 - Page 1
Forum section: electronics / general

author: m3vuv
author_rank: Super Contributor
timestamp: April 07, 2022, 08:20:46 am
content: Hi all,i have 2 hard drives on my pc,Cdrive is listed in explorer,its a 1tb sata drive,i have another 750mb sata drive in it also,only the 1tb C: drive is showing in explorer,the 750gb isnt,it shows in disk management ok tho but all options except delete are greyed out,any ideas how to make it readable in explorer as it has data on it i need? TIA.

author: RoGeorge
author_rank: Super Contributor
timestamp: April 07, 2022, 08:49:34 am
content: Quote from: m3vuv on April 07, 2022, 08:20:46 amYou have a0.75 bitsdrive? Cool!Windows doesn't work with fractional bits. Try Linux.

author: m3vuv
author_rank: Super Contributor
timestamp: April 07, 2022, 09:15:05 am
content: hat got to do with the original question i asked?,isnt realy helpfull to me as i tried linux and hate it big time and same for most of the folks who sing its praises,ok i can see it can benifit companys for industrial uses to save paying licence fees to microshite but i have tried most offerings from redhat to mint and find them not user friendly for most tasks,so how about answering my question in a way that helps with the issue i have and Not by telling me to switch to linux.

author: gnif
author_rank: Unknown
timestamp: April 07, 2022, 09:47:39 am
content: Quote from: m3vuv on April 07, 2022, 09:15:05 amBreach of rule #2, second warning in as many months. User is now muted/restricted from posting.

author: m3vuv
author_rank: Super Contributor
timestamp: April 21, 2022, 06:37:33 am
content: anyone?
Question about the (in)famous Intel LPC bug - Page 1
Forum section: electronics / general

author: Logan
author_rank: Frequent Contributor
timestamp: April 13, 2022, 04:55:19 pm
content: Hi friends.So there's a huge bug for Intel low-power series CPUs that brick the whole system after 1.5-3 years.From what I've read, it affectsat leastSilvermont and Goldmont (2013-2017) generations, which contains many different series, from phones to servers...My question is, are the CPUs out of these range safe? For example, Goldmont-Plus?BTW, I have to say Intel does a great job censoring information, they even continue to (make?) and sell the known bad version of chips as of late 2019(!):https://fuse.wikichip.org/news/2649/intel-updates-apollo-lake-more-lpc-reliability-issues/Thanks.
keeping code running in main form when new forms are opened in c# - Page 1
Forum section: electronics / general

author: snarkysparky
author_rank: Frequent Contributor
timestamp: April 08, 2022, 02:18:25 pm
content: In my main form I have a timer that is doing periodic work that I want to keep happening when a new form is opened.The work involves checking a TCP listener for connections as well as other non GUI communicating with hardware.If a modal form is opened does this timer in the parent form keep running even though the parent form GUI is inactive ?Thanks

author: IanB
author_rank: Super Contributor
timestamp: April 08, 2022, 02:33:06 pm
content: Why don't you test it?Arrange for the timer to write periodic messages out to the console window (or debug window), and then watch to see if these messages keep coming while the modal form is open.

author: snarkysparky
author_rank: Frequent Contributor
timestamp: April 08, 2022, 02:39:16 pm
content: I have tested. Timer does keep going. But I really really would like to know that this is the expected result and not just a fluke.Thanks

author: zzattack
author_rank: Regular Contributor
timestamp: April 08, 2022, 02:50:41 pm
content: Opening a modal form on top of another one does not block the obscured one's message loop, so yes this is as expected.
Question new power supply pc long storage damage parts - Page 1
Forum section: electronics / general

author: tiago1986
author_rank: Regular Contributor
timestamp: March 22, 2022, 11:23:56 pm
content: i know that electrolytic capacitors stored for long periods when they are energized have high leakage current, if i buy a new pc power supply that has been stored for a long time in the electronics company warehouse when assembling the pc and turning it on there is the risk from the source cause serious damage to the machine because of the capacitors that were stopped for a long time?

author: NiHaoMike
author_rank: Super Contributor
timestamp: March 23, 2022, 03:48:34 am
content: It's unlikely for it to be stored for long enough for that to be an issue. You can also jumper green to black to test it before installing into a machine.

author: bdunham7
author_rank: Super Contributor
timestamp: March 23, 2022, 04:03:44 am
content: No, they'll just leak some current internally for a few seconds and then it will taper off. I just got done testing some very, very old capacitors recovered from some equipment and the leakage was nowhere close to being a problem even with fairly large capacitors and a low current supply. A PC power supply won't even miss the few tens of mA leakage.

author: bob91343
author_rank: Super Contributor
timestamp: March 23, 2022, 04:52:45 am
content: The time frame of concern is more like 40 years.

author: Doctorandus_P
author_rank: Super Contributor
timestamp: April 06, 2022, 06:10:54 am
content: A few years ago I bought a HuanYang frequency inverter and it suggests that if it has long periods without being used then to at least power it up for a few hours once a year.A bit of leakage in the main capacitors is not such a big problem. It's mostly when leakage becomes so big that the capactitors start heating up because of the power dissipation because of the leakage.So a simple precaution is to to measure capacitor temperature in a powered, but further unused supply. If they get hot, there is definitely something wrong.You can of course also measure the leakage directly or indirectly.Measuring it directly would require opening the thing, and that is a chore, but you can measure the power consumption of the whole power supply, and when idling it should be pretty low. Write it down together with some other notes and a date and stick the piece of paper to the power supply.If you take it out of storage a few years from now, and idling power is higher, then it's probably the caps, and you can attempt any of the "reforming" procedures.
CAAS - Back to the future 60s...  - Page 1
Forum section: electronics / general

author: PKTKS
author_rank: Super Contributor
timestamp: April 07, 2022, 02:37:46 pm
content: Back in the 60s when hardware proces were exorbitant high...it made sense to rent hardware...We are round back to the point where even with the cheapest hardware of times..we may still face renting from landlords...https://www.techpowerup.com/293684/fujitsu-launches-fujitsu-computing-as-a-service-caas-delivering-customers-access-to-world-leading-computing-technologies-via-the-public-cloudgo figurePaul
question cable 24pin and cooler processor - Page 1
Forum section: electronics / general

author: tiago1986
author_rank: Regular Contributor
timestamp: March 28, 2022, 01:36:18 am
content: my motherboard has a connector location far from the 24 pin cable of my corsair cv450 so is there a problem if the 24 pin cable goes over the cpu cooler? it does not touch the cooler but the cable was able to stretch more easily in this output
Rust (the game, not the language) - Page 1
Forum section: electronics / general

author: gnif
author_rank: Unknown
timestamp: March 28, 2022, 06:50:31 am
content: Hey All,Not sure if anyone here would be interested but figured i'd post it here anyway.I run a public Rust server for anyone that would like to join. It's hosted on a non-shared dedicated server (no VMs here) in a Sydney Datacenter so performance is far better then most free/public servers. I do not operate a pay-to-win or any vip services nor do I ever plan to. I feel that you should not get an advantage over others simply because you have more disposable cash.Mostly vanilla server, just a few quality of life mods such as a removal tool for building and the furnace splitter mod. A few admin/anti-cheat mods/tools also.Details:https://just-wiped.net/rust_servers/1796387IP: 139.99.148.132Port: 28015
fitting a floppy drive - Page 1
Forum section: electronics / general

author: m3vuv
author_rank: Super Contributor
timestamp: March 27, 2022, 10:14:24 am
content: Hi all,i have a GA-78LMT-USB3 mb in my pc,i have a floppy drive to fit but cant see a connector for the fdd ribbon cable,any ideas?.

author: PKTKS
author_rank: Super Contributor
timestamp: March 27, 2022, 12:45:56 pm
content: They removed the floppy headers at all from all revisions of this (very common) board..The manual explicit says to use a USB flop to install RAID drivers on it...Paul

author: m3vuv
author_rank: Super Contributor
timestamp: March 27, 2022, 12:56:36 pm
content: so how in gods name do i connect a floppy drive to it?

author: Gyro
author_rank: Super Contributor
timestamp: March 27, 2022, 01:10:32 pm
content: Get a USB one. Nothing is backward compatible for ever.

author: PKTKS
author_rank: Super Contributor
timestamp: March 27, 2022, 01:12:34 pm
content: Quote from: m3vuv on March 27, 2022, 12:56:36 pm2x for the external USB flop adapter..The internal floppy drive bay costs more and will have almost no use...apart installing such legacy drivers..Paul

author: jpanhalt
author_rank: Super Contributor
timestamp: March 27, 2022, 01:22:24 pm
content: There are also floppy to USB adapters. Example is Amazon (https://www.amazon.com/KOOBOOK-1-44MB-Floppy-Connector-Adapter/dp/B07WCRF9H3/ref=asc_df_B07WCRF9H3/?tag=hyprod-20&linkCode=df0&hvadid=546144295672&hvpos=&hvnetw=g&hvrand=12630386695336765447&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9015391&hvtargid=pla-1431147603546&psc=1). No experience with it so cannot recommend. Cheaper adapters may be available. Edit: Written before seeing concurrent posts.The floppy per se mounts in the case, not on the MB. The rest plugs onto the floppy. Be sure you have the proper power cable adapter too. Something like this:https://www.amazon.com/SATA-Power-Cable-Adapter-Floppy/dp/B000RH171M?th=1or you might find everything in just one adapter.
backlight - Page 1
Forum section: electronics / general

author: m3vuv
author_rank: Super Contributor
timestamp: March 24, 2022, 11:38:44 am
content: Can anyone tell me if the screen backlight on a Dell Inspion 1750 Laptop,is ccfl or led? tia.

author: jpanhalt
author_rank: Super Contributor
timestamp: March 24, 2022, 01:00:18 pm
content: It appears to be LEDsearch: dell inspion 1750 backlight

author: m3vuv
author_rank: Super Contributor
timestamp: March 24, 2022, 02:59:14 pm
content: that was the first thing i did was a google search,but not a clear answer!,thats why i have posted here .

author: jpanhalt
author_rank: Super Contributor
timestamp: March 24, 2022, 04:38:28 pm
content: All of the answers seemed clear to me, including the one from Dell Corp.
LoongArch For GCC 12 - Page 1
Forum section: electronics / general

author: PKTKS
author_rank: Super Contributor
timestamp: March 26, 2022, 03:48:41 pm
content: Good news...I am sick of the changes of x86 with so much firmware and hidden thingshttps://www.phoronix.com/scan.php?page=news_item&px=LoongArch-For-GCC-12Any option is welcome .. may be in due time a competitorhttps://www.phoronix.com/scan.php?page=news_item&px=LoongArch-For-GCC-12Paul
(Solved) Any "xgamma" alternatives for Linux? - Page 1
Forum section: electronics / general

author: Logan
author_rank: Frequent Contributor
timestamp: March 25, 2022, 09:38:54 pm
content: Hi friends.I tried "xgamma" on Linux, it can change gamma for individual color channels, and white point for all channels.But I want the opposite, I want to change gamma for all channels(this can be done), and change white point for individual color channels(xgamma cannot). I also tried "redshift" which supposedly can change color temperature(close to change white point for different color channels), but that program don't work on my system at all.But I want something more powerful, just like the "Intel Graphic control panel" on Windows, which allow setting brightness+contrast+gamma for each RGB channel.Does anyone know a program that meet my needs?Thanks a lot.

author: thinkfat
author_rank: Unknown
timestamp: March 25, 2022, 09:49:22 pm
content: Just to clarify, when you say "change whitepoint of individual channel", you mean change the maximum brightness of an individual channel, without changing its gamma mapping?

author: Twoflower
author_rank: Frequent Contributor
timestamp: March 25, 2022, 09:58:22 pm
content: Have you tried some alternative methods in redshift?Code:$ redshift -m listAvailable adjustment methods:drmrandrvidmodedummySpecify colon-separated options with `-m METHOD:OPTIONS'.Try `-m METHOD:help' for help.

author: Marco
author_rank: Super Contributor
timestamp: March 25, 2022, 10:17:21 pm
content: So do you want to adjustbrightness or contrastper colour?xcalibmight be able to do it, depending on your X video driver.Honestly, Linux on the desktop is atrophying a bit (outside of ChromeOS, but that's in its own world entirely). X11 has no maintainers and Wayland colour profile support still under heavy development.

author: Logan
author_rank: Frequent Contributor
timestamp: March 26, 2022, 03:27:46 am
content: Quote from: thinkfat on March 25, 2022, 09:49:22 pmNo, I don't mean to clip the highlights.Quote from: Twoflower on March 25, 2022, 09:58:22 pmIt said "no more methods to try" in the error message, I guess it automatically tried all of them? I'll use your code to try later, thanks.Quote from: Marco on March 25, 2022, 10:17:21 pmDoes that apply to the whole desktop? I saw that command before, but on Windows an ICC calibration only apply to media files.Quote from: evb149 on March 26, 2022, 02:30:09 amThat's exactly the function I want, but sadly on Linux there's no such thing for my Intel iGPU.

author: Logan
author_rank: Frequent Contributor
timestamp: March 26, 2022, 03:11:06 pm
content: Quote from: Marco on March 25, 2022, 10:17:21 pmI can't believe this works, and for whole display, not only specific programs.Thanks a lot!
dell inspiron 1720  cpu upgrade - Page 1
Forum section: electronics / general

author: m3vuv
author_rank: Super Contributor
timestamp: March 23, 2022, 10:12:17 am
content: hi all,looking to fit a faster cpu to my lappy its a ppx inspiron 1720,i know a t9500 cpu will fit and work,will a t9550 fit and work tho? tia.
TERES-A64 laptop: anyone? - Page 1
Forum section: electronics / general

author: DiTBho
author_rank: Super Contributor
timestamp: March 12, 2022, 08:48:11 pm
content: So I bought aTERES-A64-WHITE laptop(there is also a black option) for a colleague and will play with it for a week because she wants a custom GNU/Linux setup.Code:240.00 euro Basket019.03 euro shipping056.99 euro VAT316.02 euro TotalA bit expensive for what you get, and as well as I can tell, theTeres-laptopis not designed to scratch everyone’s itch and not using 100% performance and features ofA64 chip, but rather a kind of *work satisfactory* for *daily work in motion*.The battery is new, and looks great! In our case the laptop will be an advanced wireless vt220 + x11 (including Xmotif) + VNC terminal, profiled with a full ram-rootfs.
Linux developers patch security holes faster than anyone else - Page 1
Forum section: electronics / general

author: Karel
author_rank: Super Contributor
timestamp: February 20, 2022, 11:04:58 am
content: Linux programmers do a better job of patching security holes than programmers at Apple, Google, and Microsoft.https://www.zdnet.com/article/google-project-zero-finds-linux-developers-patch-security-holes-faster-than-anyone-else/

author: JohanH
author_rank: Frequent Contributor
timestamp: February 20, 2022, 11:32:38 am
content: The Linux kernel is probably the most advanced and best handled software project ever on this planet. They should get an award for that (Torvalds has gotten a bunch of awards).

author: PKTKS
author_rank: Super Contributor
timestamp: February 20, 2022, 11:46:25 am
content: Quote from: jukk on February 20, 2022, 11:32:38 amTRUE.Reason being is that they use the whole ecosystem themselves...Their business their family gateway for the wild ....The other cited fellows however use software as a way to claim property of our privacy our business and our life data ... regardless consequences the unique goal is to make money.Unfortunately thatmake moneything reached unprecedented level of unreliable invasive and deplorable methods...They claim too much and offer no value for the money..in particular ...I just ditched an almost BRAND NEW HP multifunctional to the landfills..Impossible to live with that junk in my business...I was once a fanboy of HP products.Things changed way too much and they are already privatizing LINUX as their property as well..Very important to make a stand against that.Paul
fortran coding form - Page 1
Forum section: electronics / general

author: graybeard
author_rank: Frequent Contributor
timestamp: December 30, 2021, 06:19:22 am
content: I found a file folder full of theseFORTRAN coding formsin a collection of old graph paper. They are for use in entry on a keypunch machine.Chris

author: rstofer
author_rank: Super Contributor
timestamp: December 31, 2021, 04:58:40 pm
content: I used those by the pound back in '70 and '71. Thanks for the PDF!I built an FPGA incantation of an IBM1130 primarily to run FORTRAN jobs. There's just something cool about that machine.https://en.wikipedia.org/wiki/IBM_1130

author: pbarton
author_rank: Frequent Contributor
timestamp: February 13, 2022, 12:49:00 pm
content: Those were the days...
RPI + HDMI2CSI: does it work? and what does work?  - Page 1
Forum section: electronics / general

author: DiTBho
author_rank: Super Contributor
timestamp: May 15, 2022, 01:51:04 pm
content: The company "Geekworm" has an interesting toy for RPI: the C779!It's a "camera serial interface(1)" version2, aka "CSI-2" Module with Toshiba TC358743XBG chip that acceptsHDMI input up to 1080p@25fpsand allows RPI(2) to capture and record videos though the v4l2-ctl console tool.Any experience?(1) The Camera Serial Interface (CSI) is a specification of the Mobile Industry Processor Interface (MIPI) Alliance. It defines an interface between a camera and a host processor. The latest active interface specification is CSI-3 which was released in 2012.Different Standards of MIPI CSI Interface:MIPI CSI-1was the original standard MIPI interface for cameras. It emerged as an architecture to define the interface between a camera and a host processor.MIPI CSI-2released in 2005. It uses either D-PHY or C-PHY (Both standards are set by the MIPI Alliance) as a physical layer option. The protocol is divided into the following layers:1. Physical Layer (C-PHY/D-PHY)2. Lane Merger Layer.3. Low Level Protocol Layer.4. Pixel to Byte Conversion Layer5. Application LayerFeatures:PHY variants supported: D-PHY 1.2, C-PHY 1.0 or "Combo PHY"Number of Virtual Channels: Four (4)Control Interface: I2CLine based transmission (Easy implementation, low gate count, matched data rates for sensor and link)Interrupt type: In-BandSupports { RGB, RAW, YUV, JPEG }Embedded DataCRC/ECC for payload & Header ProtectionMIPI CSI-3is a high-speed, bidirectional protocol primarily intended for image and video transmission between cameras and hosts within a multi-layered, peer-to-peer, UniPro-based M-PHY device network. Originally released in 2012, got re-released in version 1.1 in 2014.(2) compatible with: Raspberry Pi { 4B, 3B+, 3B, 3A+, 2B, 2B+, Pi Zero , Zero W }

author: DiTBho
author_rank: Super Contributor
timestamp: May 15, 2022, 01:51:47 pm
content: Has anyone already tried to connect VGA through a VGA-to-HDMI-adapter?Code:vga ----> VGA-to-HDMI (adapter) ----> HDMI-to-CSI-2 (C779) ----> RPI V4LDoes it work correctly?

author: DiTBho
author_rank: Super Contributor
timestamp: May 15, 2022, 04:34:42 pm
content: Digging deeper, I found thatC779 only supports video, doesn't support audio, but there are other modules(1) that take the incoming HDMI signal and converts it into a separate CSI signal and I2S audio signal.I2S-Audio requires wiring to the expansion port of the RPI(1) { C780, C790 }
Looking for Astronomer with Qt skills to work on DeepSkyStacker - Page 1
Forum section: electronics / general

author: perdrix
author_rank: Frequent Contributor
timestamp: May 13, 2022, 10:03:54 am
content: Hi folks,I'm the current maintainer of the astronomical image stacking programme DeepSkyStackerI'm trying to port the code from Win32/GDI/MFC to Qt and have made some progress, but its going far slower than I'd hoped.If there's anyone out that has the relevant skill set (i.e. been there, done that, sold the T-shirt) and is interested in helping please contact me direct at david.partridge@perdrix.co.uk.ThanksDavid
Intel Xeon X5570 @2.93GHZ LGA1366 (SLBF3) - Page 1
Forum section: electronics / general

author: m3vuv
author_rank: Super Contributor
timestamp: December 08, 2021, 10:44:26 am
content: just wondered if this cpu is faster/better than an amd fx8350?

author: PKTKS
author_rank: Super Contributor
timestamp: December 08, 2021, 01:15:52 pm
content: Quote from: m3vuv on December 08, 2021, 10:44:26 am2 cents of my personal money on this topics..InteL XXX or AMD xxxxForget all about these sites comparing "beast CPU x" with "beast CPU y"They do not make any sense at all..in particular when done with WINTEL kernels and MS "applets.."All you need is ask yourself (or sketch on paper)what this CPU is meant for and how much will cost?**IF** youcancompile the system yourself (aka using a distro for that)like a half dozen available... the answer will always tend to AMD...Reason being from my own money put on these setups..- Optimized KERNELS compiled for AMD tend to be better... and safer..- AMD has been order of magnitude morecompatibleand friendly.- the 2 reasons above will allow you to choose better compile time options...- better and wider MOBO alternatives ... and- better low level drivers for these MOBOS.the last reason/rationale will let you have a veryfine grainedschedulerand the proper compile time options + scheduler will give you a much faster system..All scenarios.. LowLatency - server like loads... or simple desktops..I have 3 base setups on this- A very low latency- A very nice Workstation for EDA and stuff- A nice ongoing NAS server...All AMD... cause my Intel builds are always steps behind that..reasons ... the poor compatible options of MOBOs /chipsets..compiler options.. insane changes in sockets.. etc et al..Also it will cost less...Paul

author: Bobson
author_rank: Regular Contributor
timestamp: February 06, 2022, 12:49:39 pm
content: Quote from: m3vuv on December 08, 2021, 10:44:26 amFX8350 is definitely faster, both single- and multi-threaded, except memory bandwidth.X5670 is generally faster a bit.

author: PKTKS
author_rank: Super Contributor
timestamp: February 07, 2022, 08:13:30 am
content: Yep that is also my results...The only gotcha i had happened recently upgrading a machine w. Fx8 and the JAVA JRE got totally berserk...Not really surprised as it is closed source.. and a pain to maintainI am looking a compatible open jdk replacement for that...Overall fx tend to be better than those insane Intel socketsPaul
Slackware 15 finally tagged to release... - Page 1
Forum section: electronics / general

author: PKTKS
author_rank: Super Contributor
timestamp: January 13, 2022, 02:46:25 pm
content: After a long period of chaos and mess produced bythe POTTERIX goonies including everything into an insane daemon...from resolvers to home user baby sitter to file system watchers...AtrueSAFE*NIX like stable and reliable distro comes ahead..https://distrowatch.com/?newsid=11447Hopefully the good days of reliable and controllable system are back.Looking forward to it although already checked the RC just fine.Paul

author: emece67
author_rank: Frequent Contributor
timestamp: January 13, 2022, 07:02:51 pm
content: .

author: rsjsouza
author_rank: Super Contributor
timestamp: January 13, 2022, 10:15:15 pm
content: Mine as well. Bought a 4-CD and a 6-CD set from Walnut Creek - imported to Brasil back in 1994 or 1995. Good times.

author: PKTKS
author_rank: Super Contributor
timestamp: January 14, 2022, 12:58:50 pm
content: Quote from: rsjsouza on January 13, 2022, 10:15:15 pmMe too.. circa 93Patrick Volker. made a good money with those CDs...back in the day a modem would need weeks to download a full CD...I still have them.. from 93 and some others..box with printed manuals...The good days are not behind us..Just checked the new RC release and it is stillthe best thing put together around...Safe sane smart and with all the best practicesPaul

author: rsjsouza
author_rank: Super Contributor
timestamp: January 14, 2022, 01:47:07 pm
content: Some ten years ago when I was doing Gigabit Ethernet development and tests, Slackware saved me. The only test machine I had available was a Pentium III 500MHz severely underpowered for the task if running Windows XP. I then nuked everything and installed a barebones Slackware without a GUI and then got around 700~750Mbps with it. Good times.

author: PKTKS
author_rank: Super Contributor
timestamp: February 04, 2022, 10:41:17 am
content: As of TODAY... Slackware is OFFICIALLY declared stable...http://www.slackware.com/changelog/current.php?cpu=x86_64As usual a solid rock release (for a long time now..)Available in 64 or a much smaller footprint 32 bits as well..Changes most notably affecting users...- PAM replacing shadow- The lame PulseAudio alternative PipeWire.- QT5- RUST .. nobody will escape thatand a lot more..Considering the whole new make_world from scratch build myself...The usual good *NIX practices from P.Volk.he never missed the critical point..Paul
Bandwidth-limit Android's HotSpot ??? - Page 1
Forum section: electronics / general

author: frogblender
author_rank: Regular Contributor
timestamp: January 04, 2022, 04:36:46 am
content: I posted this over at androidforums... but they are a bunch of wankers, so I come here for the expertise...I set up my pixel2 as a wifi hotspot. Works great. Now, I wish to bandwidth-limit the clients who connect to that hotspot. ie. any client who connects to my phone's hotspot will be limited to 1mbps or whatever I specify.The reason I want this: The chromecast device, when playing netflix, *always* defaults to the highest possible quality the network connection will allow, and there is no way to change this. The bandwidth settings in the netflix app have ZERO effect when it is cast through to chromecast.Any help would be appreciated.

author: coromonadalix
author_rank: Super Contributor
timestamp: January 07, 2022, 08:49:12 am
content: You have bandwidth controlled routers / hot spot, dont do that on a phoneOr use an dedicated computer with the right software ....And you seem to ''distribute your internet to others clients'' you could be liable of any wrong doing, any illegal downloading etc .... You would need to always hide under a VPN etc ...I personally would not do that, even for a friend or client ... whatever your / the reason(s)You may not like all the given answers here too ....

author: NiHaoMike
author_rank: Super Contributor
timestamp: January 11, 2022, 11:49:42 pm
content: Quote from: coromonadalix on January 07, 2022, 08:49:12 amUse Torbox for that, even safer than a VPN.

author: Halcyon
author_rank: Unknown
timestamp: January 26, 2022, 11:41:20 pm
content: Out of the box, you won't be able to do that and I'm not aware of any tools which would allow you to either. I'd suggest if it was possible, you'd need to root the device anyway and come up with some kind of custom solution. Sounds messy.If you're after such a solution, perhaps a small, low-power router running pfSense or OpenWRT would be a much better option for you. Even something like this:https://www.amazon.com.au/dp/B073TSK26W/ref=cm_sw_r_cp_api_glt_i_09HGP2Q7R5P02SC2YF3EIf it's for home use, maybe consider a proper router (running the above-mentioned software) is a better, more permanent solution.
P&E Multilink programmer USB problem fixed... sort of - Page 1
Forum section: electronics / general

author: Circlotron
author_rank: Super Contributor
timestamp: December 14, 2021, 12:53:34 pm
content: I've got a P&E Micro USB Multilink Universal programmer that I use on S08 micros. Had it for about 2-1/2 years and mostly it works just fine, but if you make a connection to a micro has already been secured, after you load the programming algorithm it tells you the only option is to erase the device. So you go Yes and it immediately loses the USB connection. Unplug and replug then scan for connection to programmer, reset micro and (usually) you're in. Sometimes you have to go through this procedure a second or third time till you finally get in. This is only if the micro has been secured. Happens on my Win 8.1 laptop and Win7 on VirtualBox on Linux Mint Mate 19.3. A friend has the same programmer and it does exactly the same thing on his Win 10 laptop.After fiddling around and trying a whole heap of different things I had an epiphany, as you do. I put an old USB 1.1 hub between the PC and the programmer with the idea that it would slow data down from 480Mbps to 12Mbps. Voila! It finally worked properly! What could be wrong though. Could I just have a dud programmer?http://www.pemicro.com/products/product_viewDetails.cfm?product_id=15320180&productTab=1

author: coromonadalix
author_rank: Super Contributor
timestamp: December 29, 2021, 02:54:12 am
content: you could check in your computer bios if you have a half duplex or full duplex setup, maybe it would act the same as the usb 1.x card ??Could be the hardware technology, drivers etc ... i use the ''old'' original P&E micro Cyclone variant, and sometimes it does some quirks ... but it works lollhave an old tl866 programmer, must update the FW in a 32bit os, if i do it in a 64 bit os, it will partially flash and get stuck, have to recover it in a 32 bit pc ... once updated it work flawlessly

author: nctnico
author_rank: Super Contributor
timestamp: December 29, 2021, 10:13:13 pm
content: Quote from: Circlotron on December 14, 2021, 12:53:34 pmNo, these things are just utter crap. Probably the timing in the driver is too tight. I actually returned one to Farnell for having the same issues but the replacement was just as bad.
Is there a way to program a password maker on an app? - Page 1
Forum section: electronics / general

author: Beamin
author_rank: Super Contributor
timestamp: December 23, 2021, 02:35:13 am
content: So I want increase my password strengths. Right now I use a simple algorithm based on the web site name Im visiting.For example I take the password requirements: upper and lower case a number, eight characters long , one special characterCCCCCVVV =_C_onstant _V_ariableFor the letters it would be a phrase that applies to all passwords "I like coffee for breakfast: Ilcfb then to make each password unique to each site you take the first letter of the domain like gmail and convert the g to a number; the number 7 then add 110 so you always get three digits.117 So the password to gmail would be Ilcfb117But say I want to make it more complex is their a simple way to program an app or a calculator to do this simple math? Be cool just to type in a word to something and have a password come out.

author: Nominal Animal
author_rank: Super Contributor
timestamp: December 23, 2021, 05:31:04 am
content: Why not make a locally-hosted web page out of it: a local file that you open in your browser, and does the math/magik right there?(For a graphical example, see e.g.my finite impulse filter response analysis example. When loaded, the page does not connect to the internet in any way, and works just fine when saved as a local file and simply opened in your browser.)Personally, I'd consider three inputs – server/domain name, common passphrase, mixing method – and one output, the password generated, when you click on a button.The mixing methods needs to be cryptographically secure (not secret, secure); and the "randomness" is provided by the passphrase (common across the sites you use this with, or some other phrase you associate with that particular site) that you do need to keep secret.For the page, use HTML and CSS for the layout, and Javascript (included in the HTML page itself, like in my example above) for the functionality.

author: Beamin
author_rank: Super Contributor
timestamp: December 23, 2021, 10:01:52 pm
content: Quote from: Nominal Animal on December 23, 2021, 05:31:04 amThats a good idea and I could actually host the file somewhere. If I just hosted it as IE: mydomainname.com/file.htm would anyone be able to see it if I dont put anything on it that a search engine would pick up?

author: Nominal Animal
author_rank: Super Contributor
timestamp: December 24, 2021, 12:43:14 am
content: Quote from: Beamin on December 23, 2021, 10:01:52 pmIt would be accessible to anyone, and secrecy is not security.Just host it locally.Alternatively, use a keychain application that works with your browser, and completely random passwords. Or even your own browser password manager, with offline backup storage, and encrypt your browser preferences. Depends on the OS, of course.
Testing 4pin PWM fas with a power supply, function generator and scope? - Page 1
Forum section: electronics / general

author: dentaku
author_rank: Frequent Contributor
timestamp: December 22, 2021, 01:49:19 am
content: I just got two 140mm 4pin fans. One is from be quiet! and the other from Noctua. They're actually the first parts I've gotten for the new computer I want to build.Can I simply plug GND and 12V into pins 1 and 2 and have it spin at it's maximum RPM to check what they sound like?ALSO... if I connect the function generator output of my Keysight DSOX1102G to pin 4 and send it a 25KHz PWM signal should it be 5V or 3.3V?I want to test it a different speeds while I probe the output of pin3 and of course listen to them.

author: NiHaoMike
author_rank: Super Contributor
timestamp: December 22, 2021, 02:48:04 am
content: Default is to operate at full speed. PWM will work with either 5V or 3.3V.

author: gnavigator1007
author_rank: Unknown
timestamp: December 22, 2021, 04:15:35 am
content: This video might be helpful to you

author: dentaku
author_rank: Frequent Contributor
timestamp: December 22, 2021, 06:29:07 pm
content: When I got back home today I decided to test out the fans.I connected them to 12V to see what they were like at full speed then I pulled pin3 up to 5V with a 4.7k resistor and was able to measure the pulses.Divide by 2 then multiply by 60 and they both turn at pretty much exactly the RPM they're rated for.I then connected the function generator with a 3.3V square wave to pin4 and changed the duty cycle to see how slow they can go before they stop.The Noctua will still spin steadily at around 6% but won't start from a dead stop that way.The be quiet! doesn't like being spun at around 10 or 11% then stops below that.It's not like anyone needs a fan that spins that slow but it's fun to test them out anyway.It also make sense that at 80% the 1200RPM Noctua spins at the same speed as the 1000RPM be quiet! at 100%.Noctua's "Low Noise Adapter" is just a heatshrunk 100R resistor that makes it spin about 200RPM slower but I already knew that.