Graphical artifacts possibly GPU damage - Nexus 7 (2013) General

Hi everyone, this is my first thread on XDA. Now that we have the pleasantries out of the way ... straight to the point. I just bought a Nexus 7 2nd edition/2013. Being the power user that I am (still haven't rooted it xD ) started trying out some emulators as a test, namely ppsspp and dolphin for android. Both of those are in development and highly unstable.
It's worth to mention that my first day of use was flawless. Here it comes ... BUT ... after messing around with dolphin I managed to well simply crash the OS. The tablet completely shut down, probably to prevent damage (e.g. bluescreen style). When I switched it back on everything seemed fine, until I played a video and I noticed that blacks/browns were pixelated (like artifacts). I installed the video game Magic 2014 and I'm unsure if I noticed it before or if it happened just now but during the intro I get the same issue with blacks - highly pixelated, and one of the images has 3 or 4 lines. In game performance is smooth and absolutely no issues.
The ppsspp and dolphin emulators both have options which push the CPU/GPU and memorry quite a lot. The tablet however hasn't been heating up at all.
What do you think ? Have I damaged my 3 day old nexus baby's GPU ? Or is it a software - driver issue ? Maybe something else
Help me oh great xda crowd

Have you tried to a factory reset to see if there is a difference?
Sent from my Nexus 7 using Tapatalk 4

LoopDoGG79 said:
Have you tried to a factory reset to see if there is a difference?
Sent from my Nexus 7 using Tapatalk 4
Click to expand...
Click to collapse
That was the first thing I did sadly same artifacts in Magic 2014. I'm considering sending it back for a replacement.

Related

Nexus 7 freezing issues

Alright, I am currently on my third Nexus 7 and getting a little frustrated. I really love this device and would love to customize it the way I want but I hold back just in case I have to return another one. My question is, is anyone else experiencing problems with their tablet randomly freezing? I havent seen any forums discussing this particular problem. I have a hunch it could be the Facebook app that is causing this but that is just a theory. Below is a video of said freezing problems. Sorry for the quality; it was late, i was drinking and enjoying Netflix.
Not that I've heard of, but a quick forum search would easily confirm or deny this.
Edit reason: added detail.
Sent from my Nexus 7 using xda app-developers app
I have searched the forums as I mentioned above yet I could not locate a topic with my particular problem
Sent from my Nexus 7 using xda app-developers app
If your anything like me I'm constantly force stopping apps because why should they still be running of I'm not using it, right? Well I was having the same issue as you. Freezing and studdering on a quad core CPU. Mainly it was freezing in the settings menu. So I stopped force closing all these apps I usually do and the freezing stopped. I'm on about a week in with my 3rd nexus 7 and not one freeze. So if you do do as I do try just letting the apps be and "kill" them instead.
Sent from my Nexus 7
feelinfroggy23 said:
If your anything like me I'm constantly force stopping apps because why should they still be running of I'm not using it, right? Well I was having the same issue as you. Freezing and studdering on a quad core CPU. Mainly it was freezing in the settings menu. So I stopped force closing all these apps I usually do and the freezing stopped. I'm on about a week in with my 3rd nexus 7 and not one freeze. So if you do do as I do try just letting the apps be and "kill" them instead.
Sent from my Nexus 7
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Click to collapse
The way android is designed, apps are supposed to run in the background. Your not supposed to have a lot of free ram. 100 mb of free ram is the same as 5 mb... If it's free ram it isn't doing anything but being wasted just sitting there. Task killers are useless since eclair 2.1.the reason apps run the in the background is so you can open an app where you last left off. Among lots of other reasons. Let android manage the tasks it's really good at it.
Sent from my Nexus 7 using Tapatalk 2
I've had a few freezing issues on my nexus 7. I've only had it a couple of days. It becomes completely unresponsive for minutes and never recovers. I have to hold down the power button until it shuts off (20 seconds maybe).
I've had a number of other quirks that really show (to me) that you get what you pay for. Its a cheap tablet with a top end CPU/GPU, but that's about it.
Not sure what my next step is, but I doubt I would be happy with the shortcomings of the Nexus 7 even if I had a perfect device. I think I just like higher end devices is all, and I don't mind paying more for something that just works with no compromise.
Again just my opinion.
Sent from my Nexus 7
No such problems here, but if I were you I would use the Linux command line commands : top, ps, free, df. With those you should be able to find out if an app or process is misbehaving. You need to install the terminalIDE app and read about those commands.
Sent from my Nexus 7 using xda app-developers app
Freezing issues
I just purchsed one... Used it for 2 days. After using for a while I consistantly had freezing, particularly when typing. I called it in for a RMA refund. Don't know what the issue is, but moving on to something more tried and true.
kmall87 said:
Alright, I am currently on my third Nexus 7 and getting a little frustrated. I really love this device and would love to customize it the way I want but I hold back just in case I ha ve to return another one. My question is, is anyone else experiencing problems with their tablet randomly freezing? I havent seen any forums discussing this particular problem. I have a hunch it could be the Facebook app that is causing this but that is just a theory. Below is a video of said freezing problems. Sorry for the quality; it was late, i was drinking and enjoying Netflix.
Click to expand...
Click to collapse
Freezing - yes now and then...
My Nexus 7 freezes occasionally. I have noticed that when it restarts there's a bunch of updates. Me thinks that maybe the CPU was busy doing updates while I was keying in / touching the screen etc and couldn't cope...but maybe not. These apps seem to update a lot, same goes for my notso :silly: smartphone.
Anybody else come back to your Nexus 7 that is actually completely off and requires a power button and volume down hold in order to restart? Also I find the Android OS is consuming much of the battery in some instances.
Sent from my ADR6425LVW using Tapatalk 2
Mine is shutting down randomly.
Sent from my Nexus 7 using Tapatalk HD
Bought my N7 three days ago and it worked brilliantly after installing all my apps from the play store then I got the message to update the OS from 4.2 to 4.2.1 which I duly obliged. Thereafter it was a totally different device with crazy stuttering just swiping home screens and and solid freezes on chrome which was especially bad. I had to do at least half dozen soft re sets when everything ground to a halt and a factory wipe none of which helped. I spent this afternoon using the nexus toolkit to unlock+root my N7 and installed nightly CyanogenMod 10.1 with jb20121212 Gapps and individually reinstalled+tested every app from play store including Chrome. Its (thankfully) now buttery smooth again and I've not had any problems whatsoever in the past 8 hours of using it. This surprised me as CM10.1 is based on 4.2.1 and maybe suggests its a problem with the stock Gapps included in the OTA?
I love android but Google are releasing these updates before they're ready and it makes the OS look unreliable in the eyes of the average consumer who has no interest in rooting and flashing roms.
32Gig Nexus 7+CM10.1
Galaxy Nexus gsm+AOSP R8+Franco kernal
belgian pie said:
Mine is shutting down randomly.
Sent from my Nexus 7 using Tapatalk HD
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Click to collapse
I bought my wife a first generation Nexus 7 about 2 years ago and everything was fine with the tablet and is now updated with stock 4.4.4. Recently she started noticing that it would freeze for no reason and finally it got to the point where it would freeze very soon after it was booted up. I cleaned the cache and factory reset but the problem persisted. Obviously the unit is out of warranty but I called Asus to see if they could offer any advice. The only answers I got was that they couldn't do anything and it sounded like there was a problem with the motherboard. They also told me I could sent the tablet in for repairs but it would probably cost around $200! After laughing out loud at this ridiculous amount I told them I'd just go buy a Samsung Tab 4 for my wife and forget the Nexus. I bought the 8 inch Tab 4 and my wife is happy with the functioning of the product. BUT, I decided to give the Nexus 7 another chance at life so I utilized the Nexus Root Toolkit and I kept the stock 4.4.4 ROM instead of going the custom ROM route. I am pleased to report that there was NO motherboard problem and this tablet is working great so I am now the proud owner of the Nexus 7.
3year later. Still the same on 5.0.2
I really want to break this tablet on someones head who made it.
After 5.02 ...
It slowed down substantially. I did the "clear cache" which helped a little. It's so slow web browsing that I may as well not even try ... often 15 seconds to a minute to respond to a link click.
SO ... use it mostly for the Kindle app. I don't think it is the app fault, but when it locks up now, I see nothing on the screen; finally determined that it was in the process of downloading an update to some app or another, and the downloading locks the system if the kindle app is on the screen ... and seems to be a major slowdown other times.
Maybe there will be a 5.03 getting the performance back to KitKat levels.

[Q] why does my nexus7 lag

hi my nexus7 seems to lag on evry app i try even the home screen lags when i swipe across them im thinking of rooting and putting ics custom rom is this a good idea? Even my old iphone 3 gs seems smoother. I was expecting jellybean's project butter to be a little bit better than this.butter it seems more like peanut butter to be honest. Is there anything i can do to make it not lag?
steve1time said:
hi my nexus7 seems to lag on evry app i try even the home screen lags when i swipe across them im thinking of rooting and putting ics custom rom is this a good idea? Even my old iphone 3 gs seems smoother. I was expecting jellybean's project butter to be a little bit better than this.butter it seems more like peanut butter to be honest. Is there anything i can do to make it not lag?
Click to expand...
Click to collapse
Mine's perfectly smooth... probably a third party app doing something to it, try doing a factory reset
You are doing something wrong
Sent with my Nexus 7
steve1time said:
hi my nexus7 seems to lag on evry app i try even the home screen lags when i swipe across them im thinking of rooting and putting ics custom rom is this a good idea? Even my old iphone 3 gs seems smoother. I was expecting jellybean's project butter to be a little bit better than this.butter it seems more like peanut butter to be honest. Is there anything i can do to make it not lag?
Click to expand...
Click to collapse
Look in the thread called "the LAG thread'. Check your storage, if it is nearly full, you need to do a factory reset and not let it get so full again. This apparent software bug hit my otherwise perfect Nexus 7, and the factory reset solved it. It's smooth as butter again.
andrew.cambridge said:
You are doing something wrong
Sent with my Nexus 7
Click to expand...
Click to collapse
Can you expand on what I may be doing wrong?
Sent from my Nexus 7 using Tapatalk 2
kisrita said:
Look in the thread called "the LAG thread'. Check your storage, if it is nearly full, you need to do a factory reset and not let it get so full again. This apparent software bug hit my otherwise perfect Nexus 7, and the factory reset solved it. It's smooth as butter again.
Click to expand...
Click to collapse
Nope that can't be it. It was like it from the box and there's still nothing on my nexus can it be a defect? I've just checked and my CPU is at 100% all the time and all that's running is stock processes. I can post a screen shot if it can be of help. Also I've updated to 4.1.2 and followed the advice of running the forever gone app and deleted every item from SD card. It still lags.
Sent from my Nexus 7 using Tapatalk 2
I would try flashing it with a complete stock 4.1.2 rom from google . Maybe the original flash was bad from the factory... if you do that and its still lags send it back RMA ...
One thing that made my N7 lag the second day after I got was the damn "My Library" widget on the home screen. I got rid of it and now it's silky smooth. I also don't clutter it with a lot of widgets or anything.
steve1time said:
Nope that can't be it. It was like it from the box and there's still nothing on my nexus can it be a defect? I've just checked and my CPU is at 100% all the time and all that's running is stock processes. I can post a screen shot if it can be of help. Also I've updated to 4.1.2 and followed the advice of running the forever gone app and deleted every item from SD card. It still lags.
Sent from my Nexus 7 using Tapatalk 2
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Click to collapse
That doesn't sounds normal. I would exchange it for a new one.
Sent from my GT-P7510 using Tapatalk 2
You people sure are fast with the "flash again"and the "factory resets" (-;
Install OS manager from the market and look what's using your CPU that much.
go into the devices main settings, developer options.. first try enabling force gpu rendering. secondly, try disabling the animations(or try turning them to .5).
steve1time said:
hi my nexus7 seems to lag on evry app i try even the home screen lags when i swipe across them im thinking of rooting and putting ics custom rom is this a good idea? Even my old iphone 3 gs seems smoother. I was expecting jellybean's project butter to be a little bit better than this.butter it seems more like peanut butter to be honest. Is there anything i can do to make it not lag?
Click to expand...
Click to collapse
Give a try to my ROM http://forum.xda-developers.com/showthread.php?p=33104070
There's nothing wrong with your device hardware wise. Whatever is causing your processor to run at 100% is creating the lag.
Like others have said, find what app is causing at and let us know. It might just be the media scanner.

[Q] need some advice from everyone on my tablet.

Okay picked my tablet up two days ago from Walmart and I'm having issues.
1. Light bleeding in the right and lest lower corners (landscape mode)
2. Lag while scrolling in apps well choppynes. apps I know work fine they don't do it on my galaxy note 2 or my galaxy s2.
Could the lag issue be the cause of my tablet being on 4.2 so they are tuned for it? Would you guys be willing to test out alps I'm having issues with? I am rooted and have twrp installed I purchased my tablet from Walmart not sure if that matters don't know if they use inferior parts. Now would I return it keep I mean I mister have the best and when my 3 year old phone runs better on alpha there is a problem. Ate there roms to make it run better?
kittyslasher said:
Okay picked my tablet up two days ago from Walmart and I'm having issues.
1. Light bleeding in the right and lest lower corners (landscape mode)
2. Lag while scrolling in apps well choppynes. apps I know work fine they don't do it on my galaxy note 2 or my galaxy s2.
Could the lag issue be the cause of my tablet being on 4.2 so they are tuned for it? Would you guys be willing to test out alps I'm having issues with? I am rooted and have twrp installed I purctwith e my tablet from Walmart not sure if that matters don't know if they. S
se inferior parts. Now would I return it keep I mean I mister have the best and when my 3 year old phone runs better on alpha there is a problem. Ate there roms to make it run better?
Click to expand...
Click to collapse
Not seeing those issues. I have tried several tablets over the past year and I am very satisfied with the performance and stability of this tablet See signature below for the rom I am running now. Even with stock there was no lag of any kind. Under the current rom and kernel performance is smooth and stable. I could try some apps for you.
buffalo_guy said:
Not seeing those issues. I have tried several tablets over the past year and I am very satisfied with the performance and stability of this tablet See signature below for the rom I am running now. Even with stock there was no lag of any kind. Under the current rom and kernel performance is smooth and stable. I could try some apps for you.
Click to expand...
Click to collapse
If you can try the xda premium app as well as residentevil.net mobile app then scroll around in the dlc part
my nexus 10 has no light bleed, but it lags, occasionally. this is due to the super high res display. the tablet is pushing more pixels than it could, in the future though i think they'd release an update that further increases performance and optimizes apps to take advantage of that big display. hope this helps
kittyslasher said:
If you can try the x. premium app as well as residentevil.net mobile app then scroll around in the dlc part
Click to expand...
Click to collapse
Have xda premium. No lag whatsoever. Very smooth By comparison I had an Asus TF 700 and lag was a regular issue for the same reason the other poster to your question mentioned.
I have no problems with mine. Have you looked at Google Currents? See if the background sync is checked. I disabled mine after reading a bunch of posts regarding it.

graphics issues

Hey I just got my g2. Incredible phone, there is a learning curve however. I'm not quite used to the dimensions and button the back, but I have only been using it for a couple days so I'll give it t some time. The screen and camera are the best I've ever seen(not counting the nokia1020).
The biggest issue for me right now is performance. Switching in and out of apps and navigating apps is pretty choppy. Had this been 3 years ago the speed would be great but I'm comparing it to my galaxy s4 and iPhone 5 side by side and the scrolling on some web pages and apps is frustratingly slow. I was wondering if anyone is seeing the same kind of performance?
No, my phone is flying. No lags whatsoever. I would try a master reset and see if that helps.
Sent from my LG-D801 using XDA Premium 4 mobile app
mike2518 said:
No, my phone is flying. No lags whatsoever. I would try a master reset and see if that helps.
Sent from my LG-D801 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Same here, fastest Android phone I ever dealt with. Experience is better then N4, just with a load of junk... Cyanogenmod for us will make it better!
dotpage said:
Same here, fastest Android phone I ever dealt with. Experience is better then N4, just with a load of junk... Cyanogenmod for us will make it better!
Click to expand...
Click to collapse
Since your coming from anexus 4, which was my favorite android phone besides the camera. How are you doing with the size difference? I have larger than average size hands and I have to bounce the phone around in my hand to reach things I need to press at the top of the screen. Never had that problem with the nexus or my gs4.
I'm coming from a N4 too (I'll get the phone the G2 this week) I'll miss vanilla, but the battery life, camera, and larger screen will MORE than make up for that with the G2.
do me a favor and try youtube, asphalt 8, riptide gp, etc etc. (heavy 3d games) everything is choppy for me but the choppiness is rhythmic for some odd reason
First off, what launcher are you using? I think alot of people that get lagged that are caused by a poorly written app, and assume its the phones fault. Only good way to tell will be factory reset, and run it that way a bit. All good then add ur apps back one at a time, testing it between apps, and that will pinpoint which app is the issue...
I've been getting some random gitter/lag with the ui as well, just tested in antutu got 30,000 then a second time got 26,000. Isn't the g2 supposed to get like 35k?
Sent from my VS980 4G using Tapatalk 4
Just so I could make a statement based on fact I downloaded Riptide GP 2 to see if I got any lag or stuttering, I played 2 races with no lag or slowdown. Then I went into the graphic settings but everything was already maxed out by default, I ended up playing for 20 more minutes and its a very fun game lol. So yep it just went thru the game like butter the way you would expect it to..

Touchscreen on 4.4.2

Could you please report if your touchscreen has gotten better or worse afer the update?:fingers-crossed:
Some people are saying that it fixed everything for them, but I just saw someone who said that multitouch has become unusable...
For me it definietly made it, and as I see it became smoother...
(I am using ART with stock rooted ROM)
Sent from my Nexus 7 using xda app-developers app
It's vastly improved for me on 4.4.2
TheLeapist said:
It's vastly improved for me on 4.4.2
Click to expand...
Click to collapse
But the ghost touch bug is still present. I think this is hardware issue but cannot find any service manual to investigate
Good as gold as with all releases since 4.4
nothing changes
I've seen a little bit of improvement, but I also only had problems under some app-specific conditions. Though, I've noticed the N7 is unusually sensitive to hand/finger temperature. If my hands are even remotely cool, I can't get anything to work. Meanwhile, my S4 in a condom Otterbox Defender reads touches just fine even with freezing hands.
:\
Its not good! i have problem with multitouch and battery life is down!! and i see a bit lack in this new version!(4.4.2 - Nexus 7 LTE ) .... pls Help me .... how to fix it?
touch screen has been issued in 4.4
Sent from my Nexus 7 using XDA Premium 4 mobile app
Just updated from 4.4 to 4.4.2. I feel the touchscreen is improved a lot. The transition is smoother.
Sent from my Nexus 7 using Tapatalk
Multitouch not grounded is worse after 4.4.1-2
Sent from my Nexus 7 using XDA Premium 4 mobile app
4.2.2 almost fixes my DEB model
Hi,
My tablet is one of the unlucky ones which were not fixed by sfhub's patches.
Fortunately, the 4.2.2 OTA makes my tablet smoother. Except for 1 inch strip of non-responsive space (little below the top vertical position), things work fine. I see no ghost touches and multi-touch works fine as long as I dont touch that 1 inch part.
Hmm, it takes 3 OTAs and lot of belief in customers like me to get to this state!
Perfect so far since 4.4. Also, tested ungrounded with one and two fingers with Google Maps and no issues.
I haven't tested 4.4.2, but I WAS using SfHubs ts20 on 4.3.
I flashed the TouchScreen Unlock and then back to 100% stock 4.3 and updated to 4.4 naturally using the OTA procedure. Then updated to 4.4.1.
I tested all along the way and it seems to have helped some. Typing isn't as big as a problem but there are still missed touches and generally sucks trying to play action games. 4.4.1 seemed to help a bit again.
I'm going to try this again with 4.4.2 since I've heard good things. If this doesn't fix it, I'm sending it off to Asus. I've heard they are now replacing the touchscreen driver boards with different ones which basically means it is a hardware problem and they know it.
I haven't tried the "stock" drivers yet, still using TS09 but I will revert back tomorrow.
I got a old Nexus 7 from my mobile operator the other day.. damn, what a dream touch wize.. Why cant Nexus 7 FHD work like this? :/ I can actually TYPE on the old Nexus.
Mine seems to be mostly resolved since 4.4.
Sent from my Nexus 7 using Tapatalk 4

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