Cm 10.2 [4.3.0] [problem screen] help needed - Galaxy Tab 2 Q&A, Help & Troubleshooting

Hi guys, I need something confirmed. When I go to settings with brightness full I get these moving lines going up and down as if the screen is broken, and if I rotate my tab to landscape the lines are in same place but going the other way! So how can it be screen? , but on stock I dont get it, I think maybe contrast on cm might me diffrent as the black on cm looks diffrent to stock black. Maybe someone could tell me if they have the same problem in cm? Also if im to get my tab fixed they will have to see the problem or they wont repair, but I get this to happen on stock rom.......
Before anyone says reflash rom dont as its not a bad flash or anything like that.
Thanks, maybe someone could help me.
sent from my xperia neo v
Sent from my MT11i using XDA Premium 4 mobile app

Maybe you should first take a screenshot but i am not sure can it be seen on pic but at least try to get pic to here so we can help more. I don't have that problem even i have too cm 10.2.

T3ER said:
Maybe you should first take a screenshot but i am not sure can it be seen on pic but at least try to get pic to here so we can help more. I don't have that problem even i have too cm 10.2.
Click to expand...
Click to collapse
Its be confimed by 4 users now. Screenshot isnt possible I dont think. Im currently on stock and this does not happen. I think the screen cant display the contrast very well, or maybe cm limits the screen power! I have made the problem clear to people on the cm10.2 thread, maybe you have bigger tab? Mine is the 7" p3110
sent from my xperia neo v

mitchellreece said:
Its be confimed by 4 users now. Screenshot isnt possible I dont think. Im currently on stock and this does not happen. I think the screen cant display the contrast very well, or maybe cm limits the screen power! I have made the problem clear to people on the cm10.2 thread, maybe you have bigger tab? Mine is the 7" p3110
sent from my xperia neo v
Click to expand...
Click to collapse
Yeah i have 10.1 inch screen so that is probably reason.

Related

[Q] Flash on screen when locking

I have Nexus S i9020 and I have this bad problem..
It's started when I flashed AOSP ICS Brainmaster's Mix.. When I locked the phone, I had a strange yellow-green flash on the screen.. I tried flashing different kernels - no effect.. When I tried playing with Voodoo colors - no effect.. The only "semi-cure" was: if you return to "Stock gingerbread colors" that damn screenflash was seen only on the contour of clock and "that slide thing to unlock the screen" (don't know how to name it in english=))..
I thought that it was just the bug of the ROM then.. But when I flashed CM9 latest alpha everything remained the same.. I also thought that it was just a bug of the ROM..
But now I flashed ICS OTA after the downgrade to stock 2.3.6.. And the result is the same to switching to gingerbread colors in Voodoo app on AOSP old ICS ROMs.. I still have the screenflash on the contour on the lock and that "slidething"..
It's really annoying now as I'm starting to think that it is a hardware issue.. But all other functions work just perfect, not any single issue with the screen.. I haven't dropped my phone, haven't kicked it or something (bought it in June)
Can anybody help with this please?
P.S.: there were some similar threads here, but I haven't found the cure..
I tried playing with "Transition animation scale" and "Window animation scale" in Developer Options.. Setting window animation scale to 0.5x solves the problem.. But it turns off CRTscreen fadeout.. So there is something wrong with it on my phone.. I don't want to loose it, it's beautiful..
Any advice please?
I understand that I can only annoy with this question.. But still I don't know what to do! Please suggest any possible ideas, every piece of wisdom could help!
Now I've rooted official ICS, installed Nexus Beam 4.1.0 and flashed Glados 2.1 kernel.. And the green & yellow screenflash once again all over the screen when I lock the phone..
In every other possible way the screen behaves itself perfectly.. But when it turns off I see that damn flash..
Mine does it too
Sent from my Nexus S using XDA App
Mine does it only when i wake the phone and put it back to sleep without unlocking it
Mine has the exact same problem. It doesn't happen in gingerbread but on ics roms, even stock, it does a flash. On stock its lighter and harder to see, but if I change voodoo settings it turns green. I doubt its hardware considering it works fine on gingerbread.
Sent from my Nexus S using xda premium
So we have not only one complaint.. Something must be done to cure it.. It's really annoying as it is the only thing that works not fine on this phone!
Can somebody of the developers please comment on this problem?
Has someone found an answer to this?
Max2mus said:
I have Nexus S i9020 and I have this bad problem..
It's started when I flashed AOSP ICS Brainmaster's Mix.. When I locked the phone, I had a strange yellow-green flash on the screen.. I tried flashing different kernels - no effect.. When I tried playing with Voodoo colors - no effect.. The only "semi-cure" was: if you return to "Stock gingerbread colors" that damn screenflash was seen only on the contour of clock and "that slide thing to unlock the screen" (don't know how to name it in english=))..
I thought that it was just the bug of the ROM then.. But when I flashed CM9 latest alpha everything remained the same.. I also thought that it was just a bug of the ROM..
But now I flashed ICS OTA after the downgrade to stock 2.3.6.. And the result is the same to switching to gingerbread colors in Voodoo app on AOSP old ICS ROMs.. I still have the screenflash on the contour on the lock and that "slidething"..
It's really annoying now as I'm starting to think that it is a hardware issue.. But all other functions work just perfect, not any single issue with the screen.. I haven't dropped my phone, haven't kicked it or something (bought it in June)
Can anybody help with this please?
P.S.: there were some similar threads here, but I haven't found the cure..
Click to expand...
Click to collapse
Max2mus said:
I tried playing with "Transition animation scale" and "Window animation scale" in Developer Options.. Setting window animation scale to 0.5x solves the problem.. But it turns off CRTscreen fadeout.. So there is something wrong with it on my phone.. I don't want to loose it, it's beautiful..
Any advice please?
Click to expand...
Click to collapse
Max2mus said:
I understand that I can only annoy with this question.. But still I don't know what to do! Please suggest any possible ideas, every piece of wisdom could help!
Now I've rooted official ICS, installed Nexus Beam 4.1.0 and flashed Glados 2.1 kernel.. And the green & yellow screenflash once again all over the screen when I lock the phone..
In every other possible way the screen behaves itself perfectly.. But when it turns off I see that damn flash..
Click to expand...
Click to collapse
Raver27 said:
Mine does it too
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
tdtylert said:
Mine does it only when i wake the phone and put it back to sleep without unlocking it
Click to expand...
Click to collapse
apreichner said:
Mine has the exact same problem. It doesn't happen in gingerbread but on ics roms, even stock, it does a flash. On stock its lighter and harder to see, but if I change voodoo settings it turns green. I doubt its hardware considering it works fine on gingerbread.
Sent from my Nexus S using xda premium
Click to expand...
Click to collapse
Max2mus said:
So we have not only one complaint.. Something must be done to cure it.. It's really annoying as it is the only thing that works not fine on this phone!
Can somebody of the developers please comment on this problem?
Click to expand...
Click to collapse
matmat07 said:
Has someone found an answer to this?
Click to expand...
Click to collapse
I've seen this discussed somewhere already, but can't recall where!? But to my knowledge, if I can remember correctly it can be corrected by resetting voodoo control settings back to 2.3.3 defaults! Something to do with gamma settings I think! But obviously you have to be rooted to have & use voodoo control!!
I've tried a couple of those settings, but it never totaly get rid of the problem, it's just less visible. But since I know it's there, i'll always be seeing it XD

Apps flickering software or hardware issue?

You know when your in an app then go back home and the widgets need to reload them selves its like that but with all my icons they keep disappearing and reappearing until I open an app or lock my phone then unlock again. I noticed it twice so far and the last time I was downloading a bunch of music to my phone so might have something to do with lag even though there shouldn't be any problems with 2 gigs of ram.
Sent from my Samsung Galaxy S III
Ive noticed this too but on mine they just flicker real quick. I'm sure it has something to do with TW. It is rather annoying, i'd like to know more about this.
Mark930 said:
You know when your in an app then go back home and the widgets need to reload them selves its like that but with all my icons they keep disappearing and reappearing until I open an app or lock my phone then unlock again. I noticed it twice so far and the last time I was downloading a bunch of music to my phone so might have something to do with lag even though there shouldn't be any problems with 2 gigs of ram.
Sent from my Samsung Galaxy S III
Click to expand...
Click to collapse
That only happened to me when I had the clock +weather widget on my home screen. When I replaced it with just the clock (digital)widget, everything was running smooth.
Sent from my SCH-I535 using xda premium
Hmm i got that clock widget on maybe ill remove it. Did it flicker on every home screen and every icon or just the widget?
Sent from my Samsung Galaxy S III
mine does this all the time...no matter what app i am in prior to going home....it is realllllllyyyy annoying....hopefully a sw update will fix
viskey said:
mine does this all the time...no matter what app i am in prior to going home....it is realllllllyyyy annoying....hopefully a sw update will fix
Click to expand...
Click to collapse
Im hoping its software issue this is only my 3rd day with the phone and want to figure out if i should return it or wait for an update. Also my keyboard did the same kind of thing but it was just one flash not sure if there related. Little bugs remind me why my last phone was an iphone.. Thats the only thing i miss about ios is there are really aren't any bugs.
Sent from my Samsung Galaxy S III
Mark930 said:
Im hoping its software issue this is only my 3rd day with the phone and want to figure out if i should return it or wait for an update. Also my keyboard did the same kind of thing but it was just one flash not sure if there related. Little bugs remind me why my last phone was an iphone.. Thats the only thing i miss about ios is there are really aren't any bugs.
Sent from my Samsung Galaxy S III
Click to expand...
Click to collapse
I think it is a software issue. My screen flickers when I flashed CNA and BlackBean but does not flicker with AOKP. My guess is that AOKP is more stable and less buggy?
I would suggest going into your developer options and disable HW overlays. This works on AOSP ROMs and it should work on TW ROMs also.
Sent from my Slim Beaned i535
DX.Deception said:
I would suggest going into your developer options and disable HW overlays. This works on AOSP ROMs and it should work on TW ROMs also.
Sent from my Slim Beaned i535
Click to expand...
Click to collapse
+1
DX.Deception said:
I would suggest going into your developer options and disable HW overlays. This works on AOSP ROMs and it should work on TW ROMs also.
Sent from my Slim Beaned i535
Click to expand...
Click to collapse
Will do. But quick question, wouldn't the developers of CNA and Black Bean have figured this out prior to the release of their custom rom?
sghrush said:
Will do. But quick question, wouldn't the developers of CNA and Black Bean have figured this out prior to the release of their custom rom?
Click to expand...
Click to collapse
I would have thought so. But then again there roms are probably built from a modified source and compiled. Once compiled they probably flash it to make sure it boots. If confirmed to boot they probably upload the original. In that case it would not have the option enabled. That is my educated guess on the subject. lol
Screen flickering on AOSP based roms is nothing new, been a known issue for a long time. Some things get fixed then break cause of something else was changed.
Flickering
My phone is original. No Root. Screen just started flickering the other day. I have had it since August. I did nothing different to the phone. Verizon claims I damaged the phone in some way. I have not done anything to damage it. If I open the Gallery on the phone, it starts going crazy. Does not always do it. If I use something like Google Earth or Maps and then open the Gallery, I get horizontal lines across the screen flickering up and down randomly. Swiping gets sluggish when all this happens. Almost like the memory fills up. I look in the memory and it is not even using 1GB, but is close to it when all this happens. Not sure what the heck happened to cause this issue to all of sudden start occurring.

DPI change on Jellybean?

I sucessfully installed jellybean but I can't seem to change the lcd density..
I have in my build.prop ro.sf.lcd_density=160 and nothing happens.. I still have it set to the original, 240.
I noticed theres a new options in jellybean's build.prop ro.sf.override_null_lcd_density=1, I commented this out and also set it to 0, but still no go.
Any ideas? I've tried various apps and they all have no effect
uh, I may be wrong, but how is you changing a setting going to have a physical change on the hardware that's in your tablet?
incarceration said:
uh, I may be wrong, but how is you changing a setting going to have a physical change on the hardware that's in your tablet?
Click to expand...
Click to collapse
It's NOT a physical change - Changing the LCD DPI Density has been a method used on most versions of Android for years. What rock have YOU been under?
Yep. Same here. Can't find a way to get 160 back to life.
This is pretty much a worst thing Asus could do to us. Or is it JB thing?
Don't know, but i'll try to find a solution to this as i just can't look at 240 density after using 160 for so long.
Oversized icons are really not nice :cyclops:
Hmm this might have something to do with my sensitivity issues too. Before in a certain game I could rapidly tap a button and it would go through. Now on JB it's not registering my rapid taps and I have to tap slower. Looking all over the place for a solution!
Alitheia said:
Hmm this might have something to do with my sensitivity issues too. Before in a certain game I could rapidly tap a button and it would go through. Now on JB it's not registering my rapid taps and I have to tap slower. Looking all over the place for a solution!
Click to expand...
Click to collapse
I'm on CM 10(JB 4.1.1.) and DPI change works through the build.prop without any problems. I wonder if Asus did something to block this in latest update..
Could it be related to the kernel not supporting it?
I mean, they probably changed kernel, so maybe they didn't include this in the final release.
Why is beyond me and my understanding of their logic.
I hope this is not the case.
hm.. this is hard to get used to 240 again. i hope theres a way around this
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app
Don't try the LCD app.
I'm softbrick right now.
I too dislike the hugh icons.
Sent from my HTC PH39100 using xda premium
jaxboater said:
Don't try the LCD app.
I'm softbrick right now.
I too dislike the hugh icons.
Sent from my HTC PH39100 using xda premium
Click to expand...
Click to collapse
Thanks for taking a risk and let us know.
So this option is off, too.
Yeah this DPI is a bit of a shock
dirran said:
Yeah this DPI is a bit of a shock
Click to expand...
Click to collapse
Could you please explain me-a-noob, what's so shocking about the different DPI? I thought the DPI by default remained "at its best setting". Apparently it is not...
Why would ASUS set the DPI in a way, which would not use the full potential of the screen?
iritoi said:
Why would ASUS set the DPI in a way, which would not use the full potential of the screen?
Click to expand...
Click to collapse
I don't know, but they did it .
I miss my 200 DPI. It would be a real shame when there's no way to change the DPI.
iritoi said:
Could you please explain me-a-noob, what's so shocking about the different DPI? I thought the DPI by default remained "at its best setting". Apparently it is not...
Why would ASUS set the DPI in a way, which would not use the full potential of the screen?
Click to expand...
Click to collapse
It tricks Android into making each pixel smaller. Which means all your icons, text, etc shrink on the screen. This gives you more room on your screen and makes mostly everything look a hell of a lot better. If you do a search for DPI on the general forum, you will find a thread about DPI with screen shots that show you the difference.
phree1 said:
It tricks Android into making each pixel smaller. Which means all your icons, text, etc shrink on the screen. This gives you more room on your screen and makes mostly everything look a hell of a lot better. If you do a search for DPI on the general forum, you will find a thread about DPI with screen shots that show you the difference.
Click to expand...
Click to collapse
Same boat. This really sucks. The DPI change is so abrupt, it almost makes me want to downgrade.
spinaldex said:
Same boat. This really sucks. The DPI change is so abrupt, it almost makes me want to downgrade.
Click to expand...
Click to collapse
Why not just try out a custom Rom? At the Moment Baked BlackBean 4 and unofficial CM10 10/1 versions work very well and give you all kinds of settings and tweaks to work with as well as theme chooser. The only thing that isn't working (well or at all) is GPS and I expect that will be fixed in short order, now that the official TF700 JB update is out.
okantomi said:
Why not just try out a custom Rom? At the Moment Baked BlackBean 4 and unofficial CM10 10/1 versions work very well and give you all kinds of settings and tweaks to work with as well as theme chooser. The only thing that isn't working (well or at all) is GPS and I expect that will be fixed in short order, now that the official TF700 JB update is out.
Click to expand...
Click to collapse
Don't get me wrong, I used CM9 on my TF101 and use it on my phone, BUT I like a stable ROM with barely any noticable issues as I really do use just about everything on my devices, including the GPS. For now, until the custom roms make a bit more headway, I'm not going to switch.
Any luck?
Bump on this topic, no go on lcd mods in build.prop
REALLY would like to go back to 160...i may downgrade if there is no workaround...
I can also confirm lcd changer apps dont work either, got soft brick with one and the others didnt change anything
Agreed, any news?
Has anyone contacted Asus about it and asked?
Or, has anyone tested DPI changes on other Jelly Bean devices such as the Nexus 7 and seen if it works there (which would indicate Asus intentionally disabled it)?
spinaldex said:
Agreed, any news?
Has anyone contacted Asus about it and asked?
Or, has anyone tested DPI changes on other Jelly Bean devices such as the Nexus 7 and seen if it works there (which would indicate Asus intentionally disabled it)?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1922747
That proves that ASUS disabled it I'm still unable to unlock.. I need to switch to custom roms soon; I can't stand the default dpi

skyrocket screen rotation

hey bros! I have a problem, my skyrocket not automatically rotates the screen, and I have activated to rotate but nothing, not on youtube or camera or anything, I have to put it in a position well inclined for that to work and really uncomfortable
in games NFS or turn the car goes to one side, stick on the wall and I can not turn the other side.
and change rom, did downgrade, calibrate the gyroscope and nothing! someone help me
im on embryo 7.0 rom
please helps bros very uncomfortable. Please give me solution. Suggest me if any other roms works
sorry for my English.
~KUMAR~ said:
hey bros! I have a problem, my skyrocket not automatically rotates the screen, and I have activated to rotate but nothing, not on youtube or camera or anything, I have to put it in a position well inclined for that to work and really uncomfortable
in games NFS or turn the car goes to one side, stick on the wall and I can not turn the other side.
and change rom, did downgrade, calibrate the gyroscope and nothing! someone help me
im on embryo 7.0 rom
please helps bros very uncomfortable. Please give me solution. Suggest me if any other roms works
sorry for my English.
Click to expand...
Click to collapse
It looks like you have a bad gyro. The bubble should be centered in the level.
jd1639 said:
It looks like you have a bad gyro. The bubble should be centered in the level.
Click to expand...
Click to collapse
my self got solution after reading many posts i find that i install wrong CWM (recovery-clockwork-touch-5.8.1.3-hercules.tar)
now im on rpr-TWRP-flash-2.5.0.0.zip with embryo 7.0 working gr8 now
after flashing rom embryo 7.0 i calibrated it then its working fine
thank you XDA DEVELOPERS
~KUMAR~ said:
my self got solution after reading many posts i find that i install wrong CWM (recovery-clockwork-touch-5.8.1.3-hercules.tar)
now im on rpr-TWRP-flash-2.5.0.0.zip with embryo 7.0 working gr8 now
after flashing rom embryo 7.0 i calibrated it then its working fine
thank you XDA DEVELOPERS
Click to expand...
Click to collapse
Pay more attention to what you're putting on your phone! Next time might be a brick.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

LCD brightness bug

Hello to all. Got my Galaxy Tab 2 P3110 8gb on Monday and found a little problem in it: when I leave at minimum brightness and energy saving mode, in other words, when I leave the screen darker, I see the whole screen with brightness oscillation, increasing and decreasing, is very light but it is annoying. It does not occur when the brightness is higher. To illustrate: it is almost like a lamp burning. To perceive you need to stare at the screen, fixedly. Anyone have any suggestions other than the exchange of the product? Any change in the frequency of refresh of the screen, whatever ... Thanks everyone and sorry for English Google Translator lol
I m also experiencing this issue after the 4.2.2 update .. it noticeably visible in white backgrounds .. I didn't have this issue on 4.1 .. whats your android version BTW ??
appsmarsterx said:
I m also experiencing this issue after the 4.2.2 update .. it noticeably visible in white backgrounds .. I didn't have this issue on 4.1 .. whats your android version BTW ??
Click to expand...
Click to collapse
EXACTLY, only on white backgrounds... Im on 4.1.2 stock. So.. it is software and not hardware? U tried a custom rom?
mualmeida said:
EXACTLY, only on white backgrounds... Im on 4.1.2 stock. So.. it is software and not hardware? U tried a custom rom?
Click to expand...
Click to collapse
honestly I m not sure this is hardware or software issue since I haven't noticed this in 4.1.1 . I m yet to try a custom rom
appsmarsterx said:
honestly I m not sure this is hardware or software issue since I haven't noticed this in 4.1.1 . I m yet to try a custom rom
Click to expand...
Click to collapse
Try a custom rom and tell me here please. I'll try to downgrade to 4.0.4 ... but im not sure cuz i see this issue in white letters("SAMSUNG") at the boot screen.
In the dark gray menu of Youtube's app you can see very well the oscillation even at full brightness.. OMG, is terrible =(
hay, since your device is new try to get a new one without this defect ( this could be a hardware bug too ).. I ve read many complaints about this low brightness flicker issue specially with Nexus 7 .. anyway I ll try to downgrade back to 4.1.1 (or upgrade it to 4.3) next week and let you know ..

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