yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Original Development] Kaiyes:
Finally, I found out that the torrent problem doesn't occur normally. You can download overnight, it won't hang. But as soon as you do the overnight charging + torrent, nexus will hang within half an hour. There is something in that combination that is causing the freezing up. Either overnight charging or torrent downloading on their own tends to be fine. I now charge nexus at dawn instead of overnight.
[Nexus 7 Original Development] eddiehk6:
- For some it's better

- For some it might be worse

- For others it might even be exactly the same

Reason being is that we all have different setup and use it differently...flash them yourself and compare using your usage, not ours ;). You can always flash back if battery life is suddenly worse..
[Nexus 7 Original Development] khaytsus:
You nailed my battery experience. ;)
[Nexus 7 Original Development] Jonnyredcorn:
Yeah I still can't figure out what is causing this constant buffering in YouTube. It's not jitters just buffering. Even after the video is completely buffered if I go do something else then bring it back up without closing the YouTube app it just keeps buffering. I'm using Westwood as it seems to do it less on that setting and more on the others but for the time being I'm using the hacked YouTube that lets me download videos.

Sent from my Nexus 7
[Nexus 7 Original Development] The Gingerbread Man:
I don't think its the kernel its self but perhaps some other issue. Get yourself the free terminal emulator and type

Su

Killall servicemanager

Hit enter and tablet should reboot. Also make sure you are on r65
[Nexus 7 Original Development] Jonnyredcorn:
I am on r65 and honestly I haven't tried other kernels, but none of my other devices(AT&T Galaxy S3 running AOKP, AT&T Galaxy s4 running a TouchWiz ROM & KToonez kernel, Ipad 3rd Gen) don't have this buffering issue. Also changing TCP Congestion alg. does seem to have an effect on the amount of buffering. I could try a different kernel out I suppose to see if that changes anything. Oh yeah and I am running r65 and SmoothROM 5.2 or whatever the latest release is.

---------- Post added at 11:17 AM ---------- Previous post was at 11:14 AM ----------

I downloaded that app and I installed it and tried to watch the same video that I tried to watch yesterday that constantly buffered(batman orgins e3 demo) and I did notice no buffering, however I'm kinda weary as to using that app as of the permissions that it requires and I don't really know anything about it and can't read code so don't really know if it's doing anything malicious. I don't know the dev so if anyone can verify that it is a legit and safe app that would be nice. I have been kinda scared of apps that require root access as of late since reading the permissions privacy article that has been floating around.
[Nexus 7 Original Development] The Gingerbread Man:
I was suggesting its the internet connection on your tablet could be at fault, by doing the command I posted it resets the system server within your device which could help, certainly does with bad gsm connections on phones sometimes.
[Nexus 7 Original Development] Jonnyredcorn:
Gotcha I'll try it but I'm using my Nexus 7 on WiFi I have grouper. I'm assuming that is what you meant though, just wasn't sure because you mention GSM. I don't seem to experience any problems with the internet on my tablet other than with YouTube. I'll report back after trying that command. Thanks for your help!
[Nexus 7 Original Development] slybunda:
Been using this now as a primary device for some time and from what if noticed is the standby time and low usage battery life is worse than the stock kernel. Guessing that's because the companion core is disabled. Battery stats show the tablet to be awake all the time.

http://www.youtube.com/watch?v=R1qKdBX4-jc. Link shows companion core usage. And I have to Agree with it. Stock kernel gave better battery life In my usage scenario
[Nexus 7 Original Development] FrogdogSweden:
It drives me crazy this constant buffering. If I turn of HD it'll run better though but still buffering occasionally..

Sent from a Nexus
[Nexus 7 Original Development] neo-X:
I don't get the buffering on r62. Maybe something in the newer kernels?

Sent from my Nexus 7
[Nexus 7 Original Development] lolcopter:
Wat

I haven't experienced YouTube lag at all. Sounds like connection problems over kernel issues imo
[Nexus 7 Original Development] khaytsus:
What does the companion core have to do with wakelocks? Nothing. Better Battery Stats, my friend. Figure out what's keeping your tablet awake.

Franco and other devs have long-since decided that the switching from the companion to the higher powered cores introduces latency AND power. If we talk extremes and ONLY the companion was ever used, it's use less power than if ONLY the higher powered cores were used. But in typical use switching back and forth between the two it's been decided that it uses LESS power and less latency.

I don't know if using the companion core during sleep only has been considered, but it'd still have latency to switch.

I'd say if you need better power savings, figure out how to be able to underclock the CPU. It used to be possible, but something in the ROM seems to push it back up, but I'm sure it could be figured out. Undervolting could help a little, but it's clearly non-trivial since Franco hasn't done it yet.

What I'd suggest is try to track some stats on your device over a few weeks of typical usage.. Screen on hours during light work, screen on hours during heavier work etc.. and again, over a few weeks of time. Then switch to a kernel that doesn't disable the companion core and do the same thing. If it's a major difference, come back and tell us about it :)
[Nexus 7 Original Development] Jonnyredcorn:
It's not connections because none of my other devices have this issue . I can be standing right next to my wireless uverse modem and get constant buffering. I have 18.0mbps connection too.

Sent from my Galaxy S4
[Nexus 7 Original Development] Dancershrink:
r65 runs much better for me. No slow downs or reboots like I had on the last few as long as I keep default settings. Tried to underclock for better battery and immediately started getting lag to the point that it creates touch screen problems. I think we're getting to the point that all of the developers have great kernels and now it's a matter of which ones work on each device.
[Nexus 7 Original Development] slybunda:
need undervolting to work now to get the last few drops of battery life out.
[Nexus 7 Original Development] osm0sis:
Hopefully underclocking can be fixed too. :good:
[Nexus 7 Original Development] Shmi117:
It works...
[Nexus 7 Original Development] Draygon:
But undervolting isn't working, right? :(
[Nexus 7 Original Development] Shmi117:
That does not work, no. If only it did, however.
[Nexus 7 Original Development] khaytsus:
No it doesn't. But it might depend on the rom. It resets to standard speeds at screen off on the stock rom.
[Nexus 7 Original Development] Shmi117:
Really? Because it has worked fine with any ROM I have ever run on this thing with the latest releases of Franco.kernel. I'm not an idiot when it comes to these things so I think I would know if it does or doesn't work.
[Nexus 7 Original Development] khaytsus:
Okay ;) if it is still under clocked after screen off then maybe it is just certain roms, including stock.
[Nexus 7 Original Development] TheByteSmasher:
Just FYI... r65 STILL Freezes on Torrent Download, requiring Hard Reboot... [MENTION=3292224]franciscofranco[/MENTION] ALL of your N7 Kernels have had this problem. While leankernel and Mettalice's do not... I appreciate you trying and reverting the patch you thought would fix the issue, but I think the issue is deeper than that.. Thanks for all your hard work!
[Nexus 7 Original Development] osm0sis:
Maybe it is ROM dependent but on stock at least it doesn't even work before you turn the screen off. I set it to 1000MHz then go to System Monitor in f.Ku, and press Recents like 10 times. That easily spikes it up to 1.3GHz.
[Nexus 7 Original Development] lollyjay:
Just so it's clear, I have had no problems at all with torrent downloads. I do many, and have never had a freeze. This is not a universal problem with franco kernel.

Nexus 7 WiFi 32Gb | PA 3.60 2013-06-10 | Nova Prime | Franco-Kernel r65

Nook Color | PA 3.56 2013-06-17 | Nova Prime | Stock Kernel
[Nexus 7 Original Development] wags57:
I have problems with torrents to :(
[Nexus 7 Original Development] ameinild:
I also tried out r65, but I got slow touch response, and sound stutters in Netflix, and one time it freezed completely. I've tried r62, and it's much better in terms of responsiveness, and no problems so far in Netflix. Sticking on r62 for now, as it simply seems to work on my device. I'll measure battery life and try to tune it a bit over the next few days.
[Nexus 7 Original Development] jazzespresso:
I have been on r65 last several days (with all default settings), so far did not see any major issue with r65, it seems like quite close to my favorite one; osm0sis's boot-grouper-r61-osmod.img - maybe Franco got some ideas from osm0sis's settings..

Of course, I have to add that I have not heavily using my N7, and not done some heavy testing, but notice that battery usage is not great improvement compare to previous version, it seems like I was getting better battery on r62, but significantly different..
[Nexus 7 Original Development] wugui:
same here. i have perfmon running and im so sure either its not working or perfmon is broken. (4.2.2) rasbeanjelly here
[Nexus 7 Original Development] The Gingerbread Man:
6 hours on battery, 1 hour screen on, some Bluetooth transfer, Tapatalk, still got 100% battery
[Nexus 7 Original Development] nexusmaniac:
Auto brightness?
[Nexus 7 Original Development] The Gingerbread Man:
At the moment yes, 2.25 hours screen on 88% left :D
[Nexus 7 Original Development] Kaiyes:
Hi, try downloading without charging as charging + downloading seems to Freez the tab
[Nexus 7 Original Development] aimfull:
How did you manage to get that good battery life.

Btw: I also needed to hard reboot on torrent

Sent from my Nexus 7
[Nexus 7 Original Development] The Gingerbread Man:
I am running stock settings on stock rom with auto brightness
[Nexus 7 Original Development] didi_ghost:
And you are using franco kernel too?
[Nexus 7 Original Development] The Gingerbread Man:
If your asking me then yes I am
[Nexus 7 Original Development] didi_ghost:
Yes for you :D

And using the latest version too?
[Nexus 7 Original Development] The Gingerbread Man:
Yup latest version, r65, stock settings, stock rom. Update if you haven't is my advice
[Nexus 7 Original Development] didi_ghost:
I bought my nexus 7 today, i updated him to 4.2.2 and i am experiencing a bit battery drain, maybe because i didnt factory reset?

I want to root my device to install this kernel but i lose my warranty right? Its kinda risky because i bought him today o.o
[Nexus 7 Original Development] ameinild:
I assume you can factory reset and relock the bootloader, so you can return it on warranty in case of hardware failure - just don't brick your device by flashing a wrong ROM or something... :D
[Nexus 7 Original Development] The Gingerbread Man:
If you got it second hand a factory reset is a good idea, if its brand new you shouldn't really need to. How ever if you do root it you will generally need to unlock the boot loader which wipes everything off the device. The joy with nexus is they are almost impossible to kill (software side of things) so provided you can always get to fastboot mode your device will always be able to be fixed if you **** it up! There's tutorials and various ways to root and unlock the boot loader so you can root, go looking around in the dev section and youl find plenty of Info's and welcome and enjoy the best 7" tablet on the market
[Nexus 7 Original Development] didi_ghost:
So you're telling me that i have to unlock boot loader, factory reset, then install a cwm , and then the kernel right?
[Nexus 7 Original Development] okyere:
Yes.
[Nexus 7 Original Development] NYLimited:
I use

Lux Auto Brightness

with the N7 instead of the built-in brightness control. This one actually allows negative brightness values. It also includes an auto-night mode which not only reduces the brightness based on ambient light but also gives me a night filter - quite important while driving on dark roads.

I am not certain if it saves more battery than the built in controls but it is surely easier on my eyes.
[Nexus 7 Original Development] eduardo_b:
I use the paid version of this app on five devices -- three phones and two tablets -- and it definitely saves battery usage given that display is number one user of battery. Far more configurable than default brightness controls.
[Nexus 7 Original Development] didi_ghost:
I'll give it a try, an android without root is not android lol, and does this kernel have any problem? i can flash it without problems?
[Nexus 7 Original Development] ameinild:
I just did a video test, and I get about 5 hours of continuous video in Netflix with Kernel r62. I can see that CPU frequencies was mostly at 1300, and I believe that it has used all 4 cores, although I don't have any means to see if it actually used 2 or 4 cores.

So do you think it's possible to tweak the kernel so that it only uses 2 cores for video playback, or does it need 4 cores online?

And what's an easy way to see CPU history for each of the cores individually, so I can see if it uses 4 cores all the time?

Thanks a lot in advance...
[Nexus 7 Original Development] ncguy68:
I use Trickster Mod to set 2 cores and to monitor CPU usage.
[Nexus 7 Original Development] Warren_Orange:
So is the you tube buffering happening to everyone?
[Nexus 7 Original Development] ratcav:
No, i never saw that
[Nexus 7 Original Development] lollyjay:
Never a problem with my configuration.

Nexus 7 WiFi 32Gb | PA 3.60 2013-06-10 | Nova Prime | Franco-Kernel r65

Nook Color | PA 3.56 2013-06-17 | Nova Prime | Stock Kernel
[Nexus 7 Original Development] The Gingerbread Man:
Get r65 it only uses 4 cores when needed other wise 2 will be used (based upon load) and use system monitor by Christian Göllner to measure your CPU usage
[Nexus 7 Original Development] ameinild:
Ok thanks. Problems was with r65 I got sound stuttering in Netflix - but I'll probably have to try some different setups...
[Nexus 7 Original Development] lolcopter:
I also have never had this issue
[Nexus 7 Original Development] The Gingerbread Man:
I think those who have it have **** internet or **** connection.
[Nexus 7 Original Development] pit84:
dear francisco,i have a nexus7 grouper with paranoid android AOSPA 3+(4.2.2) i like your kernel on more devices,your kernel is compatible for mi tablet wit my rom?(nexus7 grouper with paranoid android AOSPA 3+ 4.2.2) tanks for your job-pit84
[Nexus 7 Original Development] TheByteSmasher:
Yes

---------- Post added at 06:36 PM ---------- Previous post was at 06:28 PM ----------

Is anyone else experiencing this or can someone please test? Remember back in the beginning with the N7 where android didn't let you charge on a lower capacity charger unless the data pins were shorted out? I'm not sure if it's my charger or cable but I'm experiencing battery drain while plugged in... Can anyone else see if this occurs with them? I have other chargers but I wanted to see if this scenario occurred with anyone else. Thanks!
[Nexus 7 Original Development] ChemicalSymphony:
I use an HTC incredible one on mine occasionally. Charges fine in-use except when gaming or something.

Sent from my Nexus 7
[Nexus 7 Original Development] lollyjay:
Mine always charges on generic charger.

Nexus 7 WiFi 32Gb | PA 3.60 2013-06-10 | Nova Prime | Franco-Kernel r65

Nook Color | PA 3.56 2013-06-17 | Nova Prime | Stock Kernel
[Nexus 7 Original Development] khaytsus:
Android devices will charge without the data pins being 'shorted' (200ohms across) but only at 500mAh. Generally less than the device draws, so you'll never charge, or even discharge while in use.

Generic charger as in not designed for Android?
[Nexus 7 Original Development] TheByteSmasher:
I know this... this is an issue that just started... incidentally, I was using my stock charger and aftermarket cable.. I tried 2 different cables... I'm just troubleshooting a little... not really looking for explanations. Thanks anyway.
[Nexus 7 Original Development] lollyjay:
Generic, in that it has no brand name.

Nexus 7 WiFi 32Gb | PA 3.60 2013-06-10 | Nova Prime | Franco-Kernel r65

Nook Color | PA 3.56 2013-06-17 | Nova Prime | Stock Kernel
[Nexus 7 Original Development] cityeyes:
"I don't have it, so your stuff must be screwed up" is such a copout answer for a problem that can depend on so many variables.

Honestly, I've rarely had internet problems with previous franco kernels, but they started cropping up in the newest versions. Netflix will barely load and when it does, I have a ton of issues with stuttering - I haven't tried Youtube. I know my way around my computer, configuring my router to work well with my phone, and troubleshooting before I come here to say I have an issue.

Thing is, even after a few kernel resets and still getting the problem, I could still flash back to older versions of franco kernel or over to M-kernel and the problems would magically disappear.

Bottom line - just because you don't have a particular problem doesn't mean that it doesn't exist or that it's something on our end.
[Nexus 7 Original Development] slybunda:
Had this happen last night when watching lots of YouTube videos tons of buffering all the time I just ended up using my phone instead. Waiting for android 4.3 to come out to go back to stock. From my experience on a nexus 7 the stock kernel and ROM is best for stable and reliable usage.
[Nexus 7 Original Development] lolcopter:
Ironically enough, I have experienced excessive YouTube buffering but only when I was bone stock, no root or anything. I would have to turn off HD to get smooth playback. It pissed me off because I could watch the same videos on my iPhone in HD no problem, so I was curious why Google's own OS would be slower.

THAT BEING SAID, I have yet to experience any such issue with any Franco kernel. I watch a ton of YouTube on my N7 too. I'm having enough desktop WiFi connectivity issues with drivers and Linux Mint 15, so my N7 often serves as a connectivity check, and the connection is always good.
[Nexus 7 Original Development] Crisbert:
Why this kernel doesn't support usb-otg? Just wondering..
[Nexus 7 Original Development] bsoplinger:
I've used it with StickMount successfully recently so I'm not sure what you want?

Sent from my Nexus 7 using Xparent Purple Tapatalk 2
[Nexus 7 Original Development] Crisbert:
I mean, without using any other apps like StickMount.
[Nexus 7 Original Development] Warren_Orange:
I had some skipping when playing a track in Google Music, similar to the you tube skipping that was present in r61 that was making everyone crazy. But apart from that the kernel is very good and stable.

You tube is fine :)
[Nexus 7 Original Development] konradsa:
In my experience r65 is the least skip-prone kernel I ever had with respect to playing back music on the n7. Almost like an ios device (almost, since there is still the occasional skip, but I have never heard a single skip on my iPhone or iPad)

---------- Post added at 05:56 PM ---------- Previous post was at 05:54 PM ----------

What's the problem with using stick mount versus built into the kernel? Works fine for me with stick mount.
[Nexus 7 Original Development] Draygon:
Could we please get undervolting back? My battery life is worse since it is broken.

Gesendet von meinem Nexus 7 mit Tapatalk 4 Beta
[Nexus 7 Original Development] konradsa:
I second that. Undervolting as well as fixing the lockup when WiFi power saving is used would definitely give a boost to battery life.
[Nexus 7 Original Development] Draygon:
Even another overclocked kernel with 1,6GHz overclock and -100mV gives me about the same battery life as francos r65 now.

Without undervolt this kernel isn't good for my battery, even if it runs great.
[Nexus 7 Original Development] ameinild:
I much preferred the touch driver from r62 - it felt much snappier than the current version r65. I'm looking forward to the next release of the N7 franco Kernel... :)
[Nexus 7 Original Development] JohnLocke44:
Two stupid questions:

-If I flash this kernel, is easy to revert like other kernels? (I'm saying that because of the of the ramdisk feature)

-I'm still able to do the OTA updates from CM?

Thanks!
[Nexus 7 Original Development] eddiehk6:
- Yes, just flash your original rom.zip straight over the top without wiping, and you'll get the original kernel which came with the rom. You can switch kernels by flashing other ones, again straight over the top without wiping.

- Yes again, though if you flash a rom update, it will overwrite the kernel as above. After you've flashed the rom.zip, flash the kernel.

Always best to nandroid backup before you try any of this just in case.

Generally you can repeat this sort of process for any rom/kernel on any android device. As long as you have a working nandroid backup hard to go wrong!
[Nexus 7 Original Development] fozzie:
You certainly don't need to re-flash the whole ROM to get back to the stock kernel! You just re-flash the stock kernel. That's plenty of zips floating around.
[Nexus 7 Original Development] eddiehk6:
Yes that's another way if the rom ships with the pure stock kernel.

Not all roms ship with this stock kernel tho. He was asking how to revert, so reflashing the rom.zip will also flash the rom with the kernel it came with.

Yet another way I guess is to extract the boot.img from the rom.zip and replace this manually...
[Nexus 7 Original Development] ameinild:
I was planning to do that exactly - extract the boot.img from my ROM, and flash it with Skip's toolkit - then flash another kernel if I want that. :good:
[Nexus 7 Original Development] osm0sis:
Yeah any kernel with its own ramdisk is fine, and when in doubt flash the stock kernel first. :)
[Nexus 7 Original Development] tibere86:
Delete...
[Nexus 7 Original Development] FReaKRaNT:
Does it eliminate the need to flash the stock kernel if you run your emergency kernel script 1st?

Cheers, FReaKRaNT
[Nexus 7 Original Development] osm0sis:
No my zip is about kernel settings. Ramdisk is ramdisk.
[Nexus 7 Original Development] JohnLocke44:
Just Flashed, let's see if have some improvements...

Feedback later...

Thanks for the help guys!

Regards!
[Nexus 7 Original Development] Ghostface22:
Stock 4.2.2?
[Nexus 7 Original Development] The Gingerbread Man:
Sorry for late response, been on a stag do since Thursday night. I am running stock 4.2.2 rom
[Nexus 7 Original Development] djdunn:
I found cable length to be the biggest limiter beyond charger output. The longer the cable the less power it gets. Quite significant too. Going from stock to a 6' cable with stock charger it discharges while plugged in. Getting better the shorter the cable is
[Nexus 7 Original Development] FReaKRaNT:
Not to sound rude or anything, but why would you require a 6 foot cable?

Cheers, FReaKRaNT
[Nexus 7 Original Development] MBQ_:
You gotta go big or go home
[Nexus 7 Original Development] MBQ_:
Hahaha but I'm sure he'll give you a legitimate answer.

Just trying to be funny. ;)
[Nexus 7 Original Development] dimebagdan65:
For me it's down to where the outlet is in my room, need a bit longer cable than stock :(
[Nexus 7 Original Development] lollyjay:
Isn't an extension cord an option?:what:

Nexus 7 WiFi 32Gb | PA 3.65 2013-07-05 | Nova Prime | Franco-Kernel r65

Nook Color | PA 3.56 2013-06-17 | Nova Prime | Stock Kernel
[Nexus 7 Original Development] bjcrj:
Extension cords work well. Keeps the actual charger cable short.:thumbup:
[Nexus 7 Original Development] osm0sis:
Gauge of the cord and length are the most important. Those Monoprice ones are really nice. Displayed as charging with the HP Touchpad charger even before they released that fix. :)