Random vertical lines? - Nexus 7 Q&A, Help & Troubleshooting

I've noticed that a random black line sometimes appears on my Nexus 7. It's very brief, probably on a single frame width ways on the screen, not so often, the closest I noticed were about 15 minutes apart, usually much more.
Has anyone else noticed anything like this? Could I have a faulty unit?

Wrong thread mate, q/a or general. I dont have any of these lines though.
Sent from my Nexus 7 using xda premium

adfad666 said:
I've noticed that a random black line sometimes appears on my Nexus 7. It's very brief, probably on a single frame width ways on the screen, not so often, the closest I noticed were about 15 minutes apart, usually much more.
Has anyone else noticed anything like this? Could I have a faulty unit?
Click to expand...
Click to collapse
I have the dev one from IO, but i don't have that. Sorry man

I have seen that on mine as well. Its almost as if the GPU missed drawing one of the lines on the screen. Pretty rare though.

theusername said:
I have seen that on mine as well. Its almost as if the GPU missed drawing one of the lines on the screen. Pretty rare though.
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Click to collapse
I've been getting this a little bit as well.
Sent from my SAMSUNG-SGH-I727 using xda premium

What ROM are you running? I had this issue on SGT7, but switched to Linaro cookies and cream (motley kernel) and it went away. Smoother rom overall also.
Sent from my MB860 using XDA Premium HD app

Pretty rare but I've caught a few of those as well. Not so much bothersome as slightly worrying...
The last one appeared while charging but pretty sure I've seen them unplugged too.

Rare, but happened to mine as well. Just hope it won't get worse

same here
adfad666 said:
I've noticed that a random black line sometimes appears on my Nexus 7. It's very brief, probably on a single frame width ways on the screen, not so often, the closest I noticed were about 15 minutes apart, usually much more.
Has anyone else noticed anything like this? Could I have a faulty unit?
Click to expand...
Click to collapse
I have the same thing. My Nexus otherwise seems flawless.
I got mine direct from google.

Flashing motley's kernel seems to be the fix as of now.
Sent from my Nexus 7 using Tapatalk 2

Have you guyz checked if this happens in Bootloader and Recovery ? I did and I could see it there as well which had me worrying. My Unit is just a day old and I was worried if the device was plagued with faulty screen.
I saw this behaviour for atleast 6 hours and now it has disappeared ! I've seen these crap happening to LCD TVs as well, usually temp in the beginning but eventually it pops up forever !
Thoughts ?

i'm experiencing the same. but horizonal. but i know its a software thing..will be patched up soon.
waiting insanely for CM10

Related

Is this what everyone complains about?

Just got my nexus 7 in today. It seems fine, although, I noticed that con the cleft side of the screen, it seems to be slightly raised in the middle. The corners attached fine. Are people sending out back for this? It doesn't seem like an issue, just an annoyance
Sent from my Nexus 7 using Tapatalk 2
Sounds like it. Seems like it's always on the left side for some reason. It's lifts up over the bezel and you can push down on it and it lifts again later. That is how mine is... or was hopefully.
I heated it up with a game, then put a couple clamps on it, left it over night turned off, and today it has stayed down so far. Hope the adhesive that is suppose to hold the glass down sticks now.
I had a previous one though that was slightly different, it was raised on the left side, but I couldn't push it down. Seemed like a screw was tightened too far or something. I sent that one back.
Either deal with it or get a refund if it really bothers you. You can also try number of fixes that are posted on these forums. They pretty much all have this issue to some degree.
Sent from my Galaxy Nexus using xda premium
Yes this is it, but the real problem is if it makes a noise when you push on it. THATS the annoying part.
Mine doesn't make any noise, although it definitely is a tiny bit squishy and if you try and push hard on it, it does act a little like an LCD monitor. I just didn't care enough to try and return it, as I would have never noticed it if everyone hadn't had their panties up in a wad as much as they did. I figure the worst that happens is that it gets worse over the next year and I end up having to spend a whole $200 more on a newer model.
I agree. I can't imagine this truly hurting the experience. Oh well. Not a big deal as long as it works well
Sent from my iPhone using Tapatalk
Are you guys serious? If I buy a product, it better not have defects. Why would anyone settle for bad quality? Products these days should not have any issues with the technology we have.
This doesn't make sense to me.
Mine is arriving next week and I hope everything is perfect.
Sent from my Galaxy Nexus using xda app-developers app
I agree, if it was a true issue I would get a new one. In my case, it is only raised in the middle, and not that noticeable. Everything else is fine. You can fix that too
Sent from my iPhone using Tapatalk
Besides it shouldn't affect performance. I hope
Sent from my iPhone using Tapatalk
When I got my second one from the play store, it looked like the middle of the left side was raised. I thought I pushed it down but it never came back up.
I keep looking at it and touching it but nothing. I don't know if I imagined it or maybe bad lighting.
Just install a TPU case where the lip overhangs the screen. Problem solved. Out of sight out of mind. I'm enjoying my N7.
If its a problem 6 months later then I'll call and exchange it. Big whoop.
Sent from my Nexus 7 using xda premium
L3af said:
Are you guys serious? If I buy a product, it better not have defects. Why would anyone settle for bad quality? Products these days should not have any issues with the technology we have.
This doesn't make sense to me.
Mine is arriving next week and I hope everything is perfect.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Doesn't affect my daily use so why should I care. I purchased a two year warranty through square trade should anything go wrong. I shouldn't expect defects but if it truly isn't hurting anything, then meh.
Sent from my Nexus 7 using Tapatalk 2
nyijedi said:
They pretty much all have this issue to some degree.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
I don't think that they all have this issue, only a select few. I have been lucky enough to get 4 Nexus 7's and no issues. I have seen the issue posted on the site several times though, and the fixes seem pretty easy. There are some youtube videos on fixing it too. Good luck fixing it mate, would take advantage of the warranty if I were you.
Thank you! I can't understand why anyone would send it in for something like that
Sent from my Nexus 7 using Tapatalk 2
I can't understand how people can keep a touch device with a raised squishy screen myself.
ncvikingx97 said:
Thank you! I can't understand why anyone would send it in for something like that
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
You can't understand how when someone holds their tablet by the left bezel and it creaks like a floor board, they'd like to return it? That perhaps when using the tablet as a book they don't want to be distracted by clicking noises?
Sent from my Nexus 7 using Tapatalk 2
Heat it, fix it!
eus107709 said:
You can't understand how when someone holds their tablet by the left bezel and it creaks like a floor board, they'd like to return it? That perhaps when using the tablet as a book they don't want to be distracted by clicking noises?
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
I am not talking about a problem to that extreme, I am talking about, a very slight raise in the middle, with no squeak. The only thing that I can think of that could be bothersome about that is that when you push hard on the bezel, a little bit of the left screen ripples
Sent from my iPhone using Tapatalk
I have exact the same problem as described. They most annoying part is they "cracking" sound it does when tapping on the left side. I curious whether the touchscreen responsivness issue is somehow related to this problem.
Btw I thought it might be related to the processor since its also on the left side, maybe the heat causes the glue to detach ... if you know what I mean.
Zilol said:
I have exact the same problem as described. They most annoying part is they "cracking" sound it does when tapping on the left side. I curious whether the touchscreen responsivness issue is somehow related to this problem.
Btw I thought it might be related to the processor since its also on the left side, maybe the heat causes the glue to detach ... if you know what I mean.
Click to expand...
Click to collapse
Maybe. Yeah, I can see that being annoying
Sent from my Nexus 7 using Tapatalk 2
Just discovered a stuck pixel. Dang

Screen responsiveness

I've noticed that the screen responsiveness varies. Sometimes it takes a few touches before it responds other times it responds as expected.
Assume it's user error so are there any tricks/hints when using the N7? Not using a screen protector
+1 on this question.
Not sure if the varying screen response it me (user error) or the N7 itself.
Is anyone else having this problem? Or, as the OP asked, do you have any tricks/hints to share?
It looks like this happens to a bunch of people. It happens to me frequently and I usually just lock the device, pick it up and then unlock it being careful I don't have any fingers on the screen before I hit the button.
I'm not sure if it's a defect or not. Some say it is. I would tend to think so too.
There's another thread on this topic, there I asked this same question.
Do you have a screen protector installed?
If not perhaps you're in a region/area with high electrostatic or humidity, moisture..
Sent from my Nexus 7 using xda app-developers app
No offense, but I doubt the electrostatic or humid environment idea since it seems to be solved instantly by turning the screen off and back on.
I have this problem with a screen protector installed. I may remove it and try without it, but I've never had issues with XO Skins before and don't really want to trash a $20 screen protector.
I have this problem without a screen protector on
Sent from my Galaxy Nexus using xda app-developers app
I've notices laggy screen response on my 1 day old N7. I'm contemplating doing a factory restore/wipe.
I don't have a screen protector but it definitely lacks touch responsiveness.
Sent from my Nexus 7 using xda app-developers app
I have had to on occasion press twice on buttons when the first press doesn't register as well. I've seen that other thread about playing games heating up the tegra chipset affecting screen responsiveness severely, but in my case this is from light usage.
Mine has been pretty responsive so far without any issue. Just got it yesterday.
I've started to notice this issue today for sure. I thought it was my imagination before as I had only gotten it in games but today I got it in tapatalk as well. Thinking about trying for a replacement. I had gotten mine at Walmart so I guess I could go through them for exchange...
Sent from my Nexus 7 using Tapatalk 2
shinji257 said:
I've started to notice this issue today for sure. I thought it was my imagination before as I had only gotten it in games but today I got it in tapatalk as well. Thinking about trying for a replacement. I had gotten mine at Walmart so I guess I could go through them for exchange...
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Click to collapse
I got my 1st one at Wal-Mart too, so I went back there yesterday to get a 2nd one to compare.
It seems to me that I'm not experiencing the lag as often on the 2nd one (I don't play any potentially resource-draining games, so I notice the lag more when I'm reading something and trying to scroll up or down).
I have started to wonder though if, in my case, maybe it's happening because I haven't installed a screen protector yet. I have one on my KFire and don't have the lag/sensitivity problem. So I figure I'll get one installed on my N7 soon and hopefully that'll cure this for me...
I noticed this the last 2-3 days. However, it seems to be only in Chrome browser. I never close my browser, and towards the end of the day, I'll unlock the tab, go into chrome, and I'll have to hit everything twice...keyboard included. I just completely close it out and start it back up, and it's fine again for another day. So it's not a problem for me.
Just had it again and while it was happening I went ahead and enabled the Dev option to show presses and it definitely requires a harder press to respond over time. I believe the digitizer is at fault on this.
Sent from my Nexus 7 using Tapatalk 2

Screen ripple fix?

Is there anyway to fix the screen ripple?
Sent from my iPhone using Tapatalk
In the words of the virgin Mary, come again?
Sorry. I was wondering if there was a fix for when you pressed down on the side of the screen and it started to ripple like an lcd
RMA it like I did yesterday.
Sent from my Nexus 7 using xda app-developers app
ncvikingx97 said:
Sorry. I was wondering if there was a fix for when you pressed down on the side of the screen and it started to ripple like an lcd
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Click to collapse
It ripples like an lcd because it is an lcd.
Sent from my LG-P999 using xda app-developers app
Yeah, I dont think an rma is going to fix this. Don't squeeze it so hard... fixed.
Mine does it as well, so not knockin ya but. It has yet to be an issue in actual real life use. Sure you can sit there and pinch the thing, but just stop, and you'll never notice it again.
I am very OCD about my devices. Honestly, as long as I know that nothing is wrong with it in that category, I will be fine
I noticed the ripple on two of the three N7's I tried. While I think it probably SHOULDN'T be happening (i.e., it represents an underlying design and/or manufacturing flaw), I don't think it will cause any issues. Like the screen lift, it's one of those things where it's technically a defect, but it's not likely to cause any performance or other issues.
If I hadn't had other problems with mine, I'd have put the best N7 in a case and forgotten all about those two issues.
What were your other problems
My first one had pretty good screen seperation all along the left side, and pretty bad lightbleed from the left side.
My new one has barely any lift (just a 1 inch section, about a third the way up on the left side), but has the lcd ripple.
The screen seperation isn't even noticeable unless you lay it flat and look across the glass and this one feels solid, the first one was spongy.
I can handle the ripple, because it only happens when im messing with it, trying to make it happen.
regalpimpin said:
Yeah, I dont think an rma is going to fix this. Don't squeeze it so hard... fixed.
Mine does it as well, so not knockin ya but. It has yet to be an issue in actual real life use. Sure you can sit there and pinch the thing, but just stop, and you'll never notice it again.
Click to expand...
Click to collapse
Tried it on mine. I am kind of shocked at how hard it had to press to get it to ripple. I am hoping get that the op has a worse case than I do because if not this is crazy. I would never pinch that hard I every day use.
Sent from my Nexus 7 using xda app-developers app
ncvikingx97 said:
What were your other problems
Click to expand...
Click to collapse
Dead pixel on one, and a putrid yellow tint on the other two.
Sent from my iPad using Tapatalk HD
Just found another stuck pixel. Prob going for a return

unresponsive screen when warm ?

hey guys, does anyone have issues with the screen becoming unresponsive when warm ? I first noticed after leaving the unit on charge in the sunlight, screen up. basically the screen needs more than a touch, sometimes it doesn't respond without a firm hand. after playing with a few different kernels this is definately an issue for me. even on stock if i play a game for long enough, heat will lead to the screen becoming unresponsive ??? stock rom and kernel is where I'm at right now and the issue is still present ? any thoughts guys ?
bl1nky said:
hey guys, does anyone have issues with the screen becoming unresponsive when warm ? I first noticed after leaving the unit on charge in the sunlight, screen up. basically the screen needs more than a touch, sometimes it doesn't respond without a firm hand. after playing with a few different kernels this is definately an issue for me. even on stock if i play a game for long enough, heat will lead to the screen becoming unresponsive ??? stock rom and kernel is where I'm at right now and the issue is still present ? any thoughts guys ?
Click to expand...
Click to collapse
I used mine last night for about 4hrs, surfing the Web, videos, posting on xda, Facebook, downloading apps and playing games, got pretty warm (could feel the heat thru my tpu case) but I didn't have any problems with the screen becoming unresponsive
Sent from my Rooted, LazyPanda, White "Destroy Mode" Evo
Mine does this sometimes but mine is not stock and have a ****load of stuff installed. I'm basically out of the 13gb. Need more space. I have otg cable but too much of a hassle.
Sent from my Nexus 7 using xda app-developers app
I experienced this while using it on the charger and using the keyboard... then i went in and wiped caches and fixed permissions. Doesn't seem to have returned.
Sent from my Nexus 7
I have the problem where the screen will become less responsive after using it for a while, but not completely unresponsive. It's hard to notice at times, I have "show touches" enabled to help me see it. Cycling the screen off then back on fixes it. I've been hoping that someone would be able to definitively say if it's an individual hardware defect or a software bug. Seems like a lot of people have this issue.
It's especially annoying when playing a touch game that requires fast, accurate inputs.
Yadao said:
I have the problem where the screen will become less responsive after using it for a while, but not completely unresponsive. It's hard to notice at times, I have "show touches" enabled to help me see it. Cycling the screen off then back on fixes it. I've been hoping that someone would be able to definitively say if it's an individual hardware defect or a software bug. Seems like a lot of people have this issue.
It's especially annoying when playing a touch game that requires fast, accurate inputs.
Click to expand...
Click to collapse
Yep... came back for me its a hardware issue... taking it back for the second time tomorrow. Gong to hit GameStop this time instead of Wally world. See if they have a good nexus :-\
Sent from my Nexus 7
Are we 100% sure it's hardware? I find it odd locking/unlocking really quick would remedy a hardware issue.
I'm thinking the problem may be more widespread than it seems. It's easy to not notice it. I only noticed when I had problems controlling a few precision input, fast-paced games.
Lets us know if your third one does it as well.
Yadao said:
Are we 100% sure it's hardware? I find it odd locking/unlocking really quick would remedy a hardware issue.
I'm thinking the problem may be more widespread than it seems. It's easy to not notice it. I only noticed when I had problems controlling a few precision input, fast-paced games.
Lets us know if your third one does it as well.
Click to expand...
Click to collapse
First one didn't do it and it was a C8O but this one is a C6O and its having that issue. My guess is it has been fixed since. I'll see if it happens on my next one.
Sent From My Toro+ via RED Tapatalk
Ok, Keep us posted. Mine is a C70.
I'm pretty sure mine is software related.
I restored a nandroid I had from my last tablet. I doubt its software related.
Sent From My Toro+ via RED Tapatalk
glad to hear I'm not the only one having heat/screen issues. I don't think it's a software problem either. will an unlocked device be on google's records ? think I may have to rma it
bl1nky said:
glad to hear I'm not the only one having heat/screen issues. I don't think it's a software problem either. will an unlocked device be on google's records ? think I may have to rma it
Click to expand...
Click to collapse
Just take it back to stock and relock the boot loader. Its pretty simple.
Sent from my Nexus 7
Well went back and returned my tab. Went to GameStop and opened up the C8Ok and it had the screen lift as well. Just decided to forget it. No other places in my area sell a nexus 7 so I got my money back.
Sent From My Toro+ via RED Tapatalk

Exchanging the Nexus 7 Twice?

Hey all,
I bought the Nexus 7 from Best Buy on release day. The first one I got had banding issues (so I thought) but it turns out where I was seeing it in the settings is common and has to do with the background used from what I found out after I exchanged it. The one I got now has bad backlight bleed and the screen seems blurry. Not sure what's up with that.
My question is, will Best Buy care if I go exchange the device again? I'd rather not be stuck with an actual defective one. Thanks!
DrexelDragon said:
Hey all,
I bought the Nexus 7 from Best Buy on release day. The first one I got had banding issues (so I thought) but it turns out where I was seeing it in the settings is common and has to do with the background used from what I found out after I exchanged it. The one I got now has bad backlight bleed and the screen seems blurry. Not sure what's up with that.
My question is, will Best Buy care if I go exchange the device again? I'd rather not be stuck with an actual defective one. Thanks!
Click to expand...
Click to collapse
I've seen people talk about 3-4 times so I think you will be good.
Kanshan said:
I've seen people talk about 3-4 times so I think you will be good.
Click to expand...
Click to collapse
Okay, awesome. Hopefully I don't get a worse unit than before. Sucks because the first one was perfect and I returned it lol
DrexelDragon said:
Okay, awesome. Hopefully I don't get a worse unit than before. Sucks because the first one was perfect and I returned it lol
Click to expand...
Click to collapse
I'm about to return mine and wait until they get more in stock, the screen on my Nexus 7 32GB is sometimes not recognizing my touches , sometimes have to press really hard on the screen just for it to recognize, and even then it isn't 100% accurate.
Something is off with the touch sensitivity tuning. I remember reading that 4.3 brought increased sensitivity to the N4, maybe the N7 is starting out extra sensitive. I've noticed it most with the default keyboard. It sometimes double types a single character. What's happening is that it recognizes my finger before I actually hit the glass, and then again when I hit it. But this should be fixable with an update.
I wish android would allow touch sensitivity user customization, something like on Nokia's Lumia WP8 phones.
glcK23 said:
I'm about to return mine and wait until they get more in stock, the screen on my Nexus 7 32GB is sometimes not recognizing my touches , sometimes have to press really hard on the screen just for it to recognize, and even then it isn't 100% accurate.
Click to expand...
Click to collapse
I exchanged mine today for this exact issue and the new one has the same problem. Wonder if this can be fixed with an update?
Sent from my Nexus 7 using xda premium
I'm unsure about the touchscreen issues. That typically results from bad connections or somewhere. Have you tried Yet Another multi touch App?
It has 2 functions, one tests inputs the other is like a paint. I recommend trying to color the entire screen. This will tell you if you have any dead spots.
If your touchscreen isn't working well I highly recommend you swap it out. What good is a tablet if the problem gets worse?
Sent from Nexus 7 FHD from XDA Premium HD
slyd0997 said:
I exchanged mine today for this exact issue and the new one has the same problem. Wonder if this can be fixed with an update?
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Interesting, so it isn't just me, does anyone else have this problem???
Sent from my Nexus 7 using xda app-developers app
trent25 said:
Something is off with the touch sensitivity tuning. I remember reading that 4.3 brought increased sensitivity to the N4, maybe the N7 is starting out extra sensitive. I've noticed it most with the default keyboard. It sometimes double types a single character. What's happening is that it recognizes my finger before I actually hit the glass, and then again when I hit it. But this should be fixable with an update.
I wish android would allow touch sensitivity user customization, something like on Nokia's Lumia WP8 phones.
Click to expand...
Click to collapse
I'm having the exact same problem with the keyboard... while typing, i would get rapid taps and some letters would show up 3 or 4 times. just wondering if this is a hardware issue or software issue?
If its a software issue, i can wait it out... but if its hardware.. i'll go and exchange it for a new one.

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