[Q] Random line flickering on screen - Asus Transformer TF700

I've done a search and I can't seem to find this issue anywhere.
I've got a new Transformer Infinity and every now and then a line appears on the screen and then disappears. This line appears to be about 1 pixel wide.
I didn't notice it at first, but ever since I got the Jellybean update, I'm seeing it quite often.
any idea what this is? Can it be fixed? And should I be concerned?

So I wasn't seeing things when it loaded the html viewer just now... I thought it was just my imagination, but if you're seeing them too...
Never had then before JB. Maybe a graphic bug? Some overlay we're normally not seeing?

ShadowLea said:
So I wasn't seeing things when it loaded the html viewer just now... I thought it was just my imagination, but if you're seeing them too...
Never had then before JB. Maybe a graphic bug? Some overlay we're normally not seeing?
Click to expand...
Click to collapse
I'm not seeing a line, but the screen definitely flickers as it is fading to dark when it's going to sleep. Never did this before JB.

Glad to see it's not just me.
I'm don't remember seeing it on ICS, I'm hoping this can be fixed without needing to return it.

Not sure if the same thing, but Prime forum after JB I remember people were talking about screen tearing. I am pretty sure this is something to do with new screen refreshing method used in Jellybean.

The flickering mine always did on power saving, even in ICS...
Where's the Vsync option when you need one... Oi, Nvidia!

Same issue here ever since JB, in any speed setting.
Sent from my ASUS Transformer Pad TF700T

mpeteiro warm
Same issue, particularly annoying on repligo pdf reader.
It's definitively not screen tearing, some group of lines are just missing on random frame

I have the same issue on my tablet noticed it as soon as i got the update to JB
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app

Yup, I noticed the same thing. It does not seem to happen all that much, but still is annoying...
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app

I am having the same issue, for me it seems to occur a lot more with Smart Backlight Adjuster disabled.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app

I have the random lines too.
There's a thick line that appears at times only when web browsing.
The thick line appears from edge to edge.
The thinner lines don't go edge to edge.
Weird...

Related

Tf700 Random Reboots. Anyone else or just me?

Has anyone had issues with random reboots with their TF700 or is it just me. I know the older Transformers had issues but I am experiencing that issue on my Prime Infinity and wondering if it is a software issue and if I should just wait for an update or if I should try returning it.
Try returning it... I only ran stock for a few days but i have never had a random reboot
Sent from my SPH-D710 using Tapatalk 2
I was getting them initially. Tried a factory reset and restored all of my apps with only minimal data and still got them.
Then did a factory reset again, started restoring apps one at a time only as needed from Google Play, no Tibu. I did this slowly, installing two or three at a time and then using the system for an hour or more to verify non-flakiness. Did not install an alternate launcher (had been using Apex). Avoided freemium games that do push notifications. No major problems since.
Did find at least one app that may be problematic: Google Voice seems unstable for me. There were couple of others too, IIRC, but that's the one that sticks out in my head because I use it fairly regularly. Did not reinstall a lot of stuff that I never actually used.
The process was painful but highly recommended. As the system becomes heavily loaded it tends have a lot of junk that is running all the time and taking up memory, etc, which is a real issue for ASUS' ICS firmware. This is why games are flaky on the TF and is probably the source of a lot of the seemingly random weirdness that seems to only affect some people but not others, IMHO, because it makes the system too sensitive to what you have installed/running on your box which is different for everyone.
This why a factory reset seems to magically fix everything, too, because all of that cruft gets wiped until you start reinstalling all this junk and firing off all the associated processes (which in turn start background services/process, etc).
I will still occasionally run FMR memory cleaner when the machine is acting laggy or something crashes (usually gmail, lol) and everything clears right up. My two previous TF201s and my other TF700 were ALL like this. I'm convinced it's an ASUS firmware/kernel issue. I'm hopeful JB fixes it but have learned to pay attention to what I put on the thing in the mean time and it is running better than ever.
rooted, btw.
I've had my Infinity for a little over a month and within the last week or so I've had random system crashes. Thought I figured out what app it was and it had stopped crashing but now it started in again late last night.wondering if its a hardware issue. Gut feeling is that I should go exchange it at Best Buy and just play it safe. I am rooted and also wondering if this could possibly be a reason as well.
What I have found is that the Infinity becomes very unstable when memory gets below 200mb. I am using the Cool Tool widget to show available RAM and noticed that it would frequently get below 200mb with general use. I have since set background processes limit to at most 2 and this keeps my RAM about 300mb and above. It limits multi taking a bit, but has been much more stable.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
I have the same random reboots... not a good start with the new tf700t
Gesendet von meinem ASUS Transformer Pad TF700T mit Tapatalk 2
I returned mine for this issue. I had 4/5 freeze and random reboots in a day also after a full wipe. Not a good tablet. I liked only the display because it had a lot of problems.
Inviato dal mio GT-I9300 con Tapatalk 2
I had these random reboots at the beginning. Do you have a µSD card inserted in your TF700 (not the dock) ? I did and this was the cause of the reboots.
Once removed, no more reboots.
Hope this could help you.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
I have an SD card in the tablet. Hoping today's ota fixes the reboot problem. Also, I've seen it happen twice where after having a series of reboots the tablet has a firmware update. I am wondering if the crashes have anything to do with the tablet calling home to Asus.
Unibrow said:
I have an SD card in the tablet. Hoping today's ota fixes the reboot problem. Also, I've seen it happen twice where after having a series of reboots the tablet has a firmware update. I am wondering if the crashes have anything to do with the tablet calling home to Asus.
Click to expand...
Click to collapse
same here!! lots of random reboots for me too!! I read a lot of comics on my infinity!! And i get random reboots when I am trying to open the viewers sometimes!!!
I had lots of reboots and and freezes freezes on my first infinity so I exchanged it out.. my second one has started doing it again after 2 wks.
riyatch said:
I had lots of reboots and and freezes freezes on my first infinity so I exchanged it out.. my second one has started doing it again after 2 wks.
Click to expand...
Click to collapse
Hehehehe... nice to know when the second device also does that! So mostly the problem is software related!
Coz it would be tough for me to exchange it since I'm not in US!
Current devices:
Galaxy Nexus
Nexus S
Nexus 7
Asus Transformer Infinity
I used to have them but after a limiting background processes to 4 I have had zero reboots. Also games don't crash anymore. There is something seriously messed up with the memory allocation.
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app
CandyAndy said:
I used to have them but after a limiting background processes to 4 I have had zero reboots. Also games don't crash anymore. There is something seriously messed up with the memory allocation.
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app
Click to expand...
Click to collapse
Is it? Cool... I'll also try that trick and update how it goes!
Current devices:
Galaxy Nexus
Nexus S
Nexus 7
Asus Transformer Infinity
CandyAndy said:
I used to have them but after a limiting background processes to 4 I have had zero reboots. Also games don't crash anymore. There is something seriously messed up with the memory allocation.
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app
Click to expand...
Click to collapse
So what affect does that setting really have (limiting background processes to 4) - does that just mean that you can only *truly* multi-task 4 apps? I've always wondered exactly what that setting really did...
Thanks.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
jtrosky said:
So what affect does that setting really have (limiting background processes to 4) - does that just mean that you can only *truly* multi-task 4 apps? I've always wondered exactly what that setting really did...
Thanks.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
Click to expand...
Click to collapse
Yes I think so. 4 is actually that much of apps that this is quite a good compromise between stability and multitasking. And either way this doesn't have "true" multitasking as for example youtube videos stop playing when going to other screen. Which is actually very annoying and thats one of the reasons why this really can't be laptop replacement.
CandyAndy said:
I used to have them but after a limiting background processes to 4 I have had zero reboots. Also games don't crash anymore. There is something seriously messed up with the memory allocation.
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app
Click to expand...
Click to collapse
Cool thanx! Tried that trick and haven't had any reboots since!
Current devices:
Galaxy Nexus
Nexus S
Nexus 7
Asus Transformer Infinity
I had my first random reboot since the .30 update, so the issues has not been eliminated.
Man, I would be *livid* if my TF700 had random reboots! Part of the reason I bought the TF700 was because my old TF101 has had random reboot issues with ICS (if I NVFlash Honeycomb it's stable as a rock). I haven't had a single random reboot with my TF700 though - and believe me, I watch for it (mainly via uptime widget)...
Have you guys always had random reboots since you purchased it??
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
So if we're thinking memory allocation is the issue here, I wonder if the V6 Supercharge would help out. I use it on my phone and it's incredible. I installed half of it on my tf700 earlier today, but I have to wait till I'm at a real computer before I apply the rest of the changes.
As a disclaimer, I've not had these random reboots, neither before nor after the OTA, though sometimes games will refuse to load with that whole nvidia issue. Haven't seen that for a little bit though either.
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app

Screen flicker in certain apps

I am noticing an issue with a screen flicker in some applications with a line drawing across the screen for a split second. It occurs most when using rdp apps but just saw it happen while typing this post. it's about 3/4 of the way up the screen when in landscape. Usually a black line that disappears quickly, like a graphics corruption issue. Already did a factory reset, saw the same thing on another tf700... anyone else?
Sent from my ASUS Transformer Pad TF700T using xda premium
jordanmw said:
I am noticing an issue with a screen flicker in some applications with a line drawing across the screen for a split second. It occurs most when using rdp apps but just saw it happen while typing this post. it's about 3/4 of the way up the screen when in landscape. Usually a black line that disappears quickly, like a graphics corruption issue. Already did a factory reset, saw the same thing on another tf700... anyone else?
Sent from my ASUS Transformer Pad TF700T using xda premium
Click to expand...
Click to collapse
Same thing for me after update to JB. Copilot and Cool reader.
You're not crazy, saw this happen while using the Nook app as well. I hope ASUS is aware of this bug
I've been noticing this issue in Tapatalk the most - probably because it's most noticeable on a white background...
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
same here.... mostly with apps that are being resized because they are not fully for tablets
I am seeing this more and more, and not just with resized apps. Just had it with the gallery.... i have seen this with 3 infinity tabs so far and they were all bought at different times. I can only describe it as a graphics driver issue, anyone else seeing this?
Sent from my ASUS Transformer Pad TF700T using xda premium
Same here.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Same for me too unfortunately. I can't even play Horn, GTA3, Black Ops Zombies, or any graphic intense game. It really sucks! Horn worked just fine until the last OTA I accepted. Still on ICS, havent taken the JB update as I'm gonna unlock bootloader and get nvflash going first. Hoping I can cure the issue with a custom Rom *crossing fingers*
Sent from my EVO using xda premium
stanglifemike said:
Same for me too unfortunately. I can't even play Horn, GTA3, Black Ops Zombies, or any graphic intense game. It really sucks! Horn worked just fine until the last OTA I accepted. Still on ICS, havent taken the JB update as I'm gonna unlock bootloader and get nvflash going first. Hoping I can cure the issue with a custom Rom *crossing fingers*
Sent from my EVO using xda premium
Click to expand...
Click to collapse
You got black ops zombies working...? how???

Infinity problem after JB update

Hi, after I updated my Infinity with JB, I noticed the screen ocasionaly flickers, like for half a second one random line of pixels on the left side turns black, and other distortions, very ocasionaly and quick. Is anyone having problems like this?
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
hayder94 said:
Hi, after I updated my Infinity with JB, I noticed the screen ocasionaly flickers, like for half a second one random line of pixels on the left side turns black, and other distortions, very ocasionaly and quick. Is anyone having problems like this?
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
Click to expand...
Click to collapse
yeap, sometimes a white horizontal line appears for a second o less in my tablet. I have to tell you that I don't have yet "the buttery" in it. Waiting to have time for a factory reset to improve the performance.
I saw other posts from the prime and the infinity as well, that after a while it gets worse, and a factory reset doesn't help at wall. I whant to resolve this without having to exchange it. I'm sick of having to go to the store and exchanging it. It's my 3rd Infinity.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
I have not had what you described above happen to eithor the TF101 or TF201 I had prior to my current TF700T. My TF700T has not shown any of the issue you described after my upgrade to JB. It sounds like something you should take up with Asus right away since it could be a hardware issues and would be covered by your warranty.
anyone else?
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
hayder94 said:
anyone else?
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
Click to expand...
Click to collapse
I also get a screen flicker since upgrading to Jellybean on my
rooted TF700. I suppose I'll try a factory reset and will report back.
hayder94 said:
Hi, after I updated my Infinity with JB, I noticed the screen ocasionaly flickers, like for half a second one random line of pixels on the left side turns black, and other distortions, very ocasionaly and quick. Is anyone having problems like this?
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
Click to expand...
Click to collapse
Yes, I get that too. Kind of annoying.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
I also get it....was wondering of it was just me. I got my new infinity a couple days before the JB update so I wasn't sure if it was a result or not.
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app
Yes, it's a JB issue. I've only had it happens once, not seen it since.
It's just screen tearing. Happens on a pc, too, although there videocard drivers have Vsync options to forcefully match the refreshrate from the program to the screen to prevent screentearing. I suspect there's a difference between JB and the Transformer's refreshrate.
We're using an Nvidia card, has anyone send Nvidia a message? (I don't have the problem anymore, so I can't make a support ticket...) More likely to work than wait for Google or Asus to notice.
Also, I don't have root nor unlocked, but tp anyone who has, is there a way to change the refresh rate manually?
Should I do a factory reset after updating to JB? I noticed that it got faster, etc... But was wondering if it would still improve after a factory reset. If yes, how do I do a factory reset? And is there a way to have my infinity exactly the way it was (wallpapers, configurations, apps, etc.)?
So I shouldn't return my infinity? If it's a software problem... I'm sick of having to return this model.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
I also have problems with my tf 700 after last update... tf 700 is having sistem freezing and restarting.
SENT FROM ASUS INFINITY TF700
I have also the same issue than OP. I contacted Asus by email to try and figure out what's wrong. I got the tablet on Monday and upgraded to JB right away, so I don't know if the problem was there before in ICS. But reading this thread I think that it's related to JB. It's a "good thing" though, because this is my second TF700 and I don't want to send it back, again. The first one had a very white spot in the middle of the screen..*. But no flickering black lines issue.
So, you guys think that they can fix this with the next release?
I'm getting this too from time to time. Very annoying!
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
Are any of you setting options in Settings->Developer Settings? I have heard that the "Force GPU rendering" option was causing random reboots for some.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
jtrosky said:
Are any of you setting options in Settings->Developer Settings? I have heard that the "Force GPU rendering" option was causing random reboots for some.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
Click to expand...
Click to collapse
Nope...force gpu rendering is not checked...
SENT FROM ASUS INFINITY TF700
I'm really not sure then. Personally, I haven't had a singe reboot and/or SOD though, so it must be something specific to the setup for the folks that are having this problem. If you really want to figure it out, I'd suggest a factory reset and try running the tablet without installing all of your apps/tweaks at the same time.
How often does this happen? Can you try running a "bare-bones" setup and see if it still occurs? If not, then slowly start introducing your specific apps/tweaks one (or a few) at a time. Yes, it's a pain, but it's the only way to diagnose such issues... Have you tried looking at logcat outputs at all? That's another way to try and diagnose the problem. These types of issues are very hard to troubleshoot - it's a slow, tedious process. But, since most folks aren't seeing random reboots and or "sleep of death" issues, it is fixable (unless it's a hardware problem, of course).
So, here's a few questions that might help troubleshoot:
1. Has this always happened on your device or only since upgrading to Jelly Bean?
2. How often does it typically happen?
3. Have you tried installing Jelly Bean from scratch (not upgrading ICS)?
4. Are you installing your apps "fresh" or are you restoring them via Titanium backup (or some other backup app)?
Again, there is no quick, easy solution to this type of problem....
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
hayder94 said:
Hi, after I updated my Infinity with JB, I noticed the screen occasionally flickers, like for half a second one random line of pixels on the left side turns black, and other distortions, very occasionally and quick. Is anyone having problems like this?
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
Click to expand...
Click to collapse
There's another thread going on this too.
I had a few lines and flickering day before yesterday, haven't seen this at all the last 2 days.
Another poster on XDA had mentioned that new OTAs take some time to settle down.
jtrosky said:
I'm really not sure then. Personally, I haven't had a singe reboot and/or SOD though, so it must be something specific to the setup for the folks that are having this problem. If you really want to figure it out, I'd suggest a factory reset and try running the tablet without installing all of your apps/tweaks at the same time.
How often does this happen? Can you try running a "bare-bones" setup and see if it still occurs? If not, then slowly start introducing your specific apps/tweaks one (or a few) at a time. Yes, it's a pain, but it's the only way to diagnose such issues... Have you tried looking at logcat outputs at all? That's another way to try and diagnose the problem. These types of issues are very hard to troubleshoot - it's a slow, tedious process. But, since most folks aren't seeing random reboots and or "sleep of death" issues, it is fixable (unless it's a hardware problem, of course).
So, here's a few questions that might help troubleshoot:
1. Has this always happened on your device or only since upgrading to Jelly Bean?
2. How often does it typically happen?
3. Have you tried installing Jelly Bean from scratch (not upgrading ICS)?
4. Are you installing your apps "fresh" or are you restoring them via Titanium backup (or some other backup app)?
Again, there is no quick, easy solution to this type of problem....
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
Click to expand...
Click to collapse
Problem started only after last update...4.1.1.
SENT FROM ASUS INFINITY TF700
same for me
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
I'm back to ICS. Since I never ran my tablet with it (got it and upgraded right away), I want to make sure it's not hardware related. So far, no black lines... I won't upgrade to JB until they solve this!!!

Apps reopening themselves?

Ive noticed recently that my browser and youtube apps seem to minimize and then open again. I dont see the homescreen, the app kinda shrinks like it was closed, and then expands from the top. Im really not sure what has caused this. This only started happening recently and i have no idea what could be causing it. The only thing ive installed recently was the humble bundle games.
When it reopens, it remembers what i was typing in the youtube comment, but the video is stopped and i usually need to rewatch the ad before i can skip back to the video position. Really annoying on the bigger videos.
Other problems im having is i get random lines flicker across the screen, and almost looks like its an 'extra' line that shifts the image up by one pixel to make room for it.
And then i noticed on the asus keyboard there is a spot on the spacebar that doesnt work. It makes the typing sound when clicked, but no space character is typed. Its on the far right side of the spacebar. It was extremely frustrating until i discovered why half the things i typed had no space even though i was SURE i hit the spacebar.
I'm having the same issue, I posted a thread about it over in the Q&A section, but still haven't heard of any workarounds... but i will at the least confirm i have the same issues
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app
I can also confirm I am having the same issues, all of them.
Especially prevalent is the apps minimizing then opening themselves up again. I've been trying to figure out if an app is doing it but I don't think this is the case. I have also installed Humble Bundle apps though, it could potentially be that.
The keyboard's spacebar seems to just be bad hardware design. I miss a lot of spaces as well and have slowly migrated my thumb to the center of the spacebar because of it.
originalnabisco said:
I can also confirm I am having the same issues, all of them.
Especially prevalent is the apps minimizing then opening themselves up again. I've been trying to figure out if an app is doing it but I don't think this is the case. I have also installed Humble Bundle apps though, it could potentially be that.
The keyboard's spacebar seems to just be bad hardware design. I miss a lot of spaces as well and have slowly migrated my thumb to the center of the spacebar because of it.
Click to expand...
Click to collapse
Don't think it's the humble apps, I have the same issue and none of those apps.
Sent from my Galaxy Nexus using Tapatalk 2
Mine just started doing the open/close/open thing as well. Seemed like it started after the last update.
Sent from my Galaxy Nexus using xda app-developers app
Rsmin said:
Mine just started doing the open/close/open thing as well. Seemed like it started after the last update.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
It was happening to me with the old firmware before i installed .18 even. I held off on updating until yesterday. Its got to be an app...
I think I fixed this issue by enabling GPU rendering in developer settings... Now the only issue is the random black line flickering which seems to be a common issue for everyone on Android 4.1.1
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app
The apps re-opening issue has vanished for me, likely due to an app update im guessing. I didnt change anything except update some apps, though im not sure which one it could have been.
I still have the lines flickering, and the right end of the space bar on the virtual keyboard still doesnt work. Etc. Though, these problems seem more common so im guessing/hoping they will get fixed.
Yea I haven't seen it either.
Sent from my Nexus 4 using XDA Premium HD app

Touch Screen - Digitizer Problem

Out of nowhere today, I started having problems with my screen. When I press the left middle of the screen, it shows me pressing 2 inches above that. My keyboard in that area, is non responsive, and when I'm in apps and trying to navigate, it gets all haywire on me.
Is their a way to get it calibrated? To stop the intermittent failure of my screen in certain areas.?
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
Is this happening with power connected or without?
Saw a neat clip once of the screen's different feedback between connected and not. When was connected to power, user showed how his touch input resulted in erroneous touch all over the place.
Sent from my ADR6400L using xda app-developers app
At first I thought it was during connection. But now it happens intermittently with other without power. When I called Asus. They said it's the "Digitizer" I'm under warranty, but If theirs a fix we can do on our own, I'm all for it.
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
Unfortunately, it probably is hardware-not software related. Get a RMA and send it in....
If you want to narrow it down some more, you could enable"show touches" in Developer Options.
But I doubt that it would help...
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
berndblb said:
Unfortunately, it probably is hardware-not software related. Get a RMA and send it in....
If you want to narrow it down some more, you could enable"show touches" in Developer Options.
But I doubt that it would help...
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
Click to expand...
Click to collapse
That's exactly what I did, to know that when I touch one spot on the screen, it showed the actual touch, two inches above where I was actually pressing. What's maddening is, it doesn't happen all the time. Just different times throughout the day.
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
Hopefully forum will let me post this link (still a new born here).
This is the video I saw, though I now see it is for the prime, but anyways take a look at the symptoms he had, and try and find that app he loaded, maybe can help you narrow problem down...
https://www.youtube.com/watch?v=W8H6P-_oy0Q&feature=youtube_gdata_player
Sent from my ADR6400L using xda app-developers app
It does sound like a hardware issue with the digitizer. Sending it in might be the only way to know for sure and to fix it. It is under warranty, so you won't be charged anything. Try doing a full factory reset first before sending it, though. There could be small chance that it fixes it that way.

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