yashsingh1/xdaforums huggingface dataset:
[HTC Sensation] sundar_amn:
Why is the scroll stutter in sensation or in Android in general? WM7 or iPhone has it smooth from their first phone release.. is it something to do with screen refresh rate? Or its more OS related? Dont tell me that your android is smooth as hell..

For example when i scroll the app drawer or the settings page, i see stutter. I admit that some places (in some ROM) its smooth but most places its not. For instance, if you pan photos, its smooth.. but you scroll settings it stutters.

From a noob perspective i am guessing iphone handles "everything" like a image.. so scrolling, zooming, panning is smooth like we do on photos.. and i guess android renders as text or something else... just my wild stupid guess..

And, is there a way to fix this? or the android OS needs to be re-written? I am upset because sensation is much higher configuration than iphone 3gs. But the stutter present in sensation (even with any ROM) is not in 3gs. So i dont beleive its hardware..

Is it the screen and the capacity touch technique used by apple? i saw one video where the iphone screen is performed almost 99% close to maximum touch accuracy and sensitivity than any other phones..

see the video below..

http://www.engadget.com/2010/03/24/moto-touchscreen-comparison-recruits-robotic-implements-for-heig/

so what do you developers think?

1) Touch screen itself

2) capacitive touch technique / code used by apple

3) screen refresh rate

4) GPU rendering

5) the way OS handles the screen and images

I cant think anything else from my noob brain.. but you developers can.. anything can be done to fix this? From OS perspective.. not like my 'contacts' scroll smooth but not the browser?!
[HTC Sensation] shammanCZ:
its a matter of display, its well known fact that iFail has top notch displays, whats on the other hand, basically the only possitive fact on that thing. So yes it is Apple's screen, same goes for iPad. Btw as for WP7, i own HD7 and its even worse then old Touch Cruise :D
[HTC Sensation] sundar_amn:
If its all about display, how come cheap replacement display units from online can achieve the same thing in iPhone?

It got a be something else...
[HTC Sensation] idavid_:
It's because of hardware acceleration. Too lazy to explain it now

Swyped from my HTC Sensation
[HTC Sensation] Bernardos70:
iPhone uses the graphics processor to handle everything, not just games/videos/flash. The whole front end (UI) uses the GPU (graphics processor) in order to make everything look smooth. In a way, this is sort of a limitation of android. Hopefully Ice Cream Sandwich fixes it (it is rumoured to).
[HTC Sensation] sundar_amn:
Had to disagree. If its GPU rendering why the scroll is smooth in gallary? why not in other text related lists? Android uses GPU only in image and videos?
[HTC Sensation] DANOFDANGER:
Im going to take a guess here but i think its to do with hardware acceleration, coding infact of the operating system like apple code all their interfaces to be bosted from the gpu, however with android i would say that not everything is coded to run with the gpu and actually id say there isn't anything but if someone could list the support for what is that would help. From what i can find only things like the internet browser and games are in sync with cpu and gpu.
[HTC Sensation] apex84:
Maybe it's not only related to GPU acceleration because I'm running InsertCoin 2.2.2 ROM and ADWLauncher EX. With the stock kernel that comes with IC 2.2.2 the appdrawer and pretty much everything else (with some exceptions) is "iPhone-smooth" but when I tried the Unity 7.0 kernel I saw much more stuttering.
[HTC Sensation] phoenx06:
A lot of it has to do with the fact that Android is multi-tasking, real multi-tasking that is. iOS and WP7 (I think, haven't touched it in forever cause it's complete trash) do some save-state multi-tasking crap. Should scrolling be affected by this? I don't think performance should ever be sacrificed. But I think a lot of stuttering in the Android UI comes from it thinking about so many things at once.
[HTC Sensation] Bernardos70:
I think the gallery is hardware accelerated.

Some things are, some things aren't. Comparison for ya: use Opera then Use the stock browser. Opera is hardware accelerated (uses GPU for rendering). See how smooth it is? Now use the stock browser and compare.

Don't quote me on this, but I'm quite sure that is one of the biggies ICS is supposed to fix.

Somehow, I think Samsung has implemented hardware acceleration for the Browser on their Galaxy S and S II line of phones. This was first noticeable when the Galaxy S got upgraded from Eclair to Froyo: the browser was much smoother (albeit glitchier.... mind you, these don't necessarily go hand in hand, you can certainly make a hardware accelerated browser without the glitches).

I think that's as far as that goes. Try a hardware accelerated video player like diceplayer (free 14 day trial in the market). Try playing a 720p or even 1080p video with it. It'll be smooth. Now go into options and change the renderer to software. Now it won't be hardware accelerated. And it'll be a slideshow.
[HTC Sensation] Spr33y:
It seems to me more of an issue of software optimization. Try scrolling with Sense 3.0 and then compare it to a sense-less rom, completely different. And then things change again depending on which launcher you choose to use. The Sensation's hardware is completely capable of buttery-smooth scrolling, it's just a matter of time till developers iron out the small kinks in their roms.
[HTC Sensation] sundar_amn:
it looks like everyone thinks GPU is the reason for ios smooth scrolling. well, do you really think the first iphone released in 2007 has a powerful GPU and used for everything ios does? the 2007 first iphone does the scrolling smooth and the 2011 sensation cannot. i strongly believe its not the hardware!!! i guess there something wrong in the basics and google let samsung and htc finding their own solutions for some of the apps they create on top of android.

something else is wrong and since the users are not greatly concerned (or expressed) about this, this is not fixed yet. I wish and hope ICS fix this issue somehow..
[HTC Sensation] Ximo F. Verde:
I have been trying to find additional information about this issue and the truth is that this is the only thread that people have actually started to talk about it. If i got this right you are refering to the periodic stutter within scrolling in android and not any asynchronous glitches. Even though many blame GPUs, non HW acc. interfaces and so on, to me its a clear cut situation of refresh rates/fps clashes. Its the same scenario of outputing a 24fps movie to 60Hz monitor where ull get the same kind of periodic stutter (something almost eliminated when u switch to 50Hz). Its got nothing to do with wether the monitor is CRT or LCD, it all comes down to refresh rate vs fps. Ive clearly seen that on my O2x where, hdmi mirroring (on a 60Hz FullHD TV) is perfectly fluent while there are some visible periodic stutters everywhere within the android enviroment, except 3D applications. And what do you know.. The O2X's display has a 72Hz refresh rate! Isnt there anywhere within the android OS where devs/users can have a go with this? Changing the ' transmiting' fps of the whole OS? Let me know what u think sundar
[Thunderbolt Q&A, Help & Troubleshooting] voxigenboy:
when i use the normal verizon phone # issued to me, it rings perfectly fine.... when i get a call from someone on my skype # though it does not ring and i never know when someone is calling me.

i've tried re-installing skype and using different revisions of it but no luck. has anyone had this issue or know how to fix it?

thanks
[Galaxy S II Q&A, Help & Troubleshooting] VlTALY:
its diferent "samsung" logo in front gone ,in other still been,
[Galaxy S II Q&A, Help & Troubleshooting] ekoandrew:
nope still the same, I can buy a screen protection cover with black rim, take a photo and post, will cover Samsung!! Its all the Photo playing clown in your head. Chucky about to get you...what out...xp
[Galaxy S II Q&A, Help & Troubleshooting] ghost77:
Just a different CG render picture, who cares.
[Galaxy S II Q&A, Help & Troubleshooting] Archer:
It's amazing what you can do with software these days. But anyway, I'm more interested in one of these versions...
[Galaxy S II Q&A, Help & Troubleshooting] miniflight:
The one without a samsung logo is the korean/japanese version IIRC
[Galaxy S II Q&A, Help & Troubleshooting] LiFE1688:
Isn't the one with the apple logo what apple is suing samsung for?

So... you are the guy that photoshop it and sent it to the courts. Did you also resized the phone so it is the same as the iphone 4 even have lines over both phones to show same height, and have the extremely microscopic fine print that says, NOT TO SCALE?
[Vibrant Q&A, Help & Troubleshooting] tabbott01:
Hi, stupid question here from a relative noob....

I have a Cincinnati Bell Vibrant, that I recently flashed CM7 on (after using Rom Manager to backup up my stock rom). Liked it, but found it too battery-intensive, so I booted into clockworkmod recovery and attempted to restore the backup of my stock rom. It failed on flashing the boot image, and now my phone is stuck on the Vibrant screen, and won't boot. None of the hardware combinations to get into recovery mode are working, but I can get it into download mode. Before I screw things up further, what is the best way to go from here to get the backup restored, or is it even possible at this point?

Thanks
[Vibrant Q&A, Help & Troubleshooting] mattb3:
This doesn't sound too bad. Basically you want to Odin back to stock. Then reflash the rom you were on, then you can reboot back into recovery and restore your backup. If voodoo was enabled on your backup make sure voodoo is enabled again before restoring(it might work either way, but I'm not sure). When I've done this, I restore a prerooted 2.2 stock Rom without changing the bootloaders, but almost any official stock rom will also work. I'm on the go, so I don't have a link handy, but post back if needed and I will point you to the odin package I use. Good luck.
[Vibrant Q&A, Help & Troubleshooting] phone_noobie:
I also am having some issues with Clockworld recovery. The problem i am having is that when doing a nandriod backup this is the error i am recieving

"E:cant mount /dev/block/mmcblk1p1 (or @)

Cant mount﻿ /mnt/sdcard

any suggestions on whats going on?
[Vibrant Q&A, Help & Troubleshooting] mattb3:
Are you sure the sdcard is good? If so then I would follow the same steps listed above, that way you know your CWR is good.
[Vibrant Q&A, Help & Troubleshooting] phone_noobie:
yes it is good because i can see all the videos, pics i have saved in it. Also i put the new ROM on my internal sd card and its there so sd card is def good. What could be causing the problem?
[Vibrant Q&A, Help & Troubleshooting] s15274n:
To the op, I would use Odin, no real worries there.

To the other guy with sdcard issue, try moving all files to your PC, format your sdcard, reboot, move files back, flash cwr in ROM mgr, backup work? Move critical files back from PC.
[Vibrant Q&A, Help & Troubleshooting] tabbott01:
Thanks...that's exactly what I did, except the backup would never quite "take." It completely loaded and cycled through the boot process, but I ended up on a boot-restore loop. So now I've Odin-ed back to stock with the closest build I could find to my stock (which I don't think is out there yet - FROYO.UVJL6.ULTIMOBILE - do you know anywhere to find it?), rooted, and am searching for a good, stable, battery-friendly mod once again.
[Vibrant Q&A, Help & Troubleshooting] phone_noobie:
i did try formatting, then moving all the stuff back and am still getting that same error message
[Vibrant Q&A, Help & Troubleshooting] s15274n:
^ what rom are you on, if one?

You could always ODIN, and use my option b cwr in the noob guide. I just tested making a backup using trigger 8/22 and know there are no issues. Not really sure whats up on your end. I will say though, I've emailed koush several times that there is an issue with cwr on the vibrant from rom manager, for some it won't even flash.
[Vibrant Q&A, Help & Troubleshooting] deziguy420:
try different sd card..or reinstall CWM...
[Verizon Droid Charge] bluevolume:
My Charge and Poweramp do not get along for some reason. When I'm playing music, aside from it just generally not sounding as good as it should, I get portions of the songs where it skips, stutters, sounds like its having buffering problems. I've tried changing the buffer size to no avail.

Running stock ROM with PBNJ 8-7-11. Could it be the Twitter app again?
[Verizon Droid Charge] NatsuDragneell:
Mite be the charger causing the problem sound , like the same problem I have when I plug in my laptop charger while playing music usual it does this when the charger isn't all the way in or hanging out could be some sorta voltage problem wit you charger probably ?

Ginger 2.3.4 S=Off No Root
[Verizon Droid Charge] jselden:
Have you tried any other players at all to see if you have this problem?

Try either winamp or ubermusic. Personally I think uber music is one of the best new music players out there. (Except it does not have the equalizer like poweramp.)
[Samsung Galaxy S (4G Model)] untalented893:
Hey guys, my warranty is coming close to it's end so I would like to know if this is a hardware issue or a rom issue. When I was on ICBINB GB my phone started to lock up for about 5-10 seconds and then it would flash the "Samsung Galaxy S 4G" screen and reboot. I figured it was the rom so I switched to Audiophile FTW Edition So Fn loud your ears will Cream. For a while all was well, but now it's doing it more and more. I was wondering if I did the install wrong or what. I didn't notice it until switching to Gingerbread so does that have something to do with it? Any help would be greatly appreciated.

Thanks!
[Samsung Galaxy S (4G Model)] RaverX3X:
for testing flash a stock rom clear all caches evne re parttion if u have to to clear everything move all important data off the sd card reformat it put the data u need back on the card reinstall all apps from market... Test the stock rom for a few days if no issues arise its a good chance its not so much the rom but more issues with the gb leaks u can also try a stock gb build dont use a modified stock just stock see if it does it....
[Samsung Galaxy S (4G Model)] untalented893:
Thanks, I was hoping that this was a known issue with a solution :(

I'll try what you suggested. Thanks
[Samsung Galaxy S (4G Model)] Cheffz:
And after all that good info RaverX3X gave ... he meant to hit the Thanks button... So I will do it for him :)
[Samsung Galaxy S (4G Model)] untalented893:
haha, I'm horrible with remembering that. Thanks for the reminder ;)
[Samsung Galaxy S (4G Model)] untalented893:
For anyone else who may have this problem, it seems as if TWlauncher was the issue. The rom I was on didn't include TWlauncher so I installed it manually. It stopped locking up and rebooting so hopefully that was it. Thanks for everyone's help
[HTC EVO 3D] bo5ibbs:
Anyone find a site to buy an aftermarket battery door? My friend has a place where he can get cool battery doors for his iphone 4 rather than buying a case. I just figured there had to be something similar out there for our phones and after doing extensive research I have failed to find anything. Any help to put me in the right direction will be greatly appreciated!
[HTC EVO 3D] thisguyinoc:
iPhones don't have battery doors.
[HTC EVO 3D] bo5ibbs:
http://ecx.images-amazon.com/images/I/41MBW30u13L._SX270_.jpg

The 4 does..as you can see in the link above. I just want something similar..
[HTC EVO 3D] james873:
Im pretty sure this is from slick wraps carbon fiber skin
[HTC EVO 3D] kaos420:
no.....no it doesn't... you cant remove your battery in any iphone period. not without special tools.
[HTC EVO 3D] :
Then he must've used special tools...
[HTC EVO 3D] bo5ibbs:
He might have used special tools...but that isn't what this thread was about. I'm just curious if anyone knows where I could find an after market battery door. One different than the stock one..
[HTC EVO 3D] jlear3:
http://www.amazon.com/HTC-EVO-3D-Battery-Packaging/dp/B005FT29PK

Here ya go.
[HTC EVO 3D] bo5ibbs:
I was looking for something other than stock. Thanks though!
[HTC EVO 3D] bo5ibbs:
bump..........................
[Continuum General] Moon Shadow - NM:
I contacted spearoid via PM to respond to a post of his on the development forum, because at that time, I didn't have enough posts to post in the dev forum... Anyhow, his issue was with Google Navigation. He would switch to another app, say the messaging app (because I don't actually remember his example, and I can't find the post from him on this issue), and then switch back to the Google Navigation app and it was as if he hadn't launched it just a few seconds ago. He had to wait for GPS the lock and then enter the navigation information again... Yeah, I agree, what a PITA (pain in the arse).

I sent him the PM to check out my post on fixing the launcher respawning as I thought the issue was similiar. Well, it is, however, I can't figure out what line to enter to replace the ro.HOME_APP_ADJ... Dang! I then went back to zepplinrox OP here in XDA (http://xdaforums.com/showthread.php?t=991276). I paid special attention to the

The Nitty Gritty... For Geeks!

and the history sections where he talks about the default minfree values. Bingo!

Using AMM (Auto Memory Manager), I looked at my memory settings, but I had already done this, so I don't know what the defaults are. Using AMM, I used the advanced settings in the menu and manually put in 6, 12, 45, 60, 80, 90. If you are wondering, "Why so high?", check out the thread by androcheck, rather than reinvent the wheel, and post the majority of his post here, I'll just link to it. http://xdaforums.com/showthread.php?t=622666.

I have found that when I need to switch to an app for a few moments, and come back to the one I was just running (I did try this with Google Navigation and it works), it seems to work. Now, the only flaw I found was if I stay on the second app for a longer period of time, say 2 minutes or so, Google Navigation was killed. Then, why are you sending a text message while driving?!?! :confused: (Just kidding.)

Hope this helps. When I find information, I prefer to share it and help others!

Ciao!
[General Questions and Answers] Salahuddin91:
Please help me guys battery drain occurs after every single second and help me with the heat up issue too im really worried :(
[Eee Pad Transformer General] sheureka:
Square Trade has decided that my TF can't be repaired because the glass is not available and they don't know when it will be available - not good news for anyone else with broken glass. But they are going to send me $499 (I had the 32) and I'll buy another one (though probably a 16 this time). Does anyone think there are differences in stock at different retailers? My gut sense is to go with Amazon, since they probably have the highest turnover and might have newer stock but I'm not sure that even makes sense. I bought my original from NewEgg when they were first available so it was very much a first generation manufacturer. And had no problems at all except a small light bleed. TIA for any suggestions. - sheureka
[Eee Pad Transformer General] inifekt:
I just ordered a 16 gb TF from Amazon and it came DOA. The screen would turn on but it was solid black and nothing would display. So I had to replace it. Amazon is shipping another one in the mail now and I am returning the one I got. The return process was painless but it's painful to wait so long to get it. I live on an APO address in Japan so I have to wait like 2 weeks.
[Eee Pad Transformer General] rlbond:
I'd go with Amazon. If you don't get one you like, you can ship it back for free, which is awesome.

Also, if you have a student email-address, you can sign up for Amazon Prime for a year and get free 2-day shipping. So there.
[Eee Pad Transformer General] SilverZero:
I see you cross-posting, sheureka. :)
[Galaxy Tab Q&A, Help & Troubleshooting] sudeep1106:
Hello!

I have a SGT UK, Unbranded... It was on Froyo 2.2. I had a issue where the Tab froze while browsing. Restarted it and it would get stuck at the Samsung Logo.

Having read the threads on XDA on how to flash it to stock, I decided to goto Stock 2.3.3. Followed the instructions, but got the 'E:Can't mount... /data' error.

Tried flashing a few more times and no luck. Eventually, I flashed the CWM 3 Kernel and was able to use the Tab and also had root.

I then decided to try the Overcome 3.1.0 ROM... After going thru the instructions, I flashed it and had the rom (wipe version) in the internal sdcard... on reboot, the 'voice' started its process but complained mid way about 'not enuf space on data partition'. It eventually finished the process but got stuck again at the Samsung logo.

Tried this again and same problem. I then decided to use the stock rom provided by Overcome and I still continue to face the same problem.

However, if I now flash the stock rom and only the Overcome Kernel, I can boot up and use the Tab but cannot delete any files from the internal sdcard. Also, any settings changed are lost if i restart the tab.

Long story short, How do i completely remove and flash stock 2.2 or 2.3.3?

TIA!
[Galaxy Tab Q&A, Help & Troubleshooting] Blittz:
The fine folks at Team Overcome have put together an amazing guide at http://p1000.teamovercome.net/?page_id=64. When I browse through the threads here on XDA I notice that 99% of the time when people have troubles its because they accidentally skipped a step, or thought it was unimportant.

My advice is to follow the guide to the letter, and do a complete wipe, re-stock, and stop when you finish step 6 of "The Installation" if you only want to stay as close to stock as possible.
[Galaxy Tab Q&A, Help & Troubleshooting] sudeep1106:
@Blittz... I have followed that guide and tried to go back to the stock using the '001001-GB-Stock-Safe-v5.zip' file. I do get the error related to 'dbdata' or 'mmcblk0' etc but after a reboot, it gets stuck at the Samsung Logo. In other words, trying to go back to stock 2.3.3 doesnt work. I then have to flash the Overcome Kernel over the stock rom to get the Tab to boot.

Another thing I noted was after flashing the Overcome Kernel over stock 2.3.3, I go thru the 'adb shell' and check the internal sdcard partitions - mmcblk0p1 etc thru parted or fdisk, and they report errors and i cannot even format the internal sdcard.

All the files that i had before i started the process for Overcome ROM are still there and cannot be deleted. I feel the internal sdcard partitions are corrupt. Any way I could rebuild them?