[Q] Backlight Bug CM11 - Droid RAZR M Q&A, Help & Troubleshooting

Has anyone else been experiencing a bug in the way the system handles the backlight on CM11. For example, i have the backlight set to halfway. When I hit the sleep button and turn the phone back on (from sleep), the backlight is completely turned off. Hitting the sleep button again (and then waking it) sometimes yields the backlight going back to the way i had previously set it and sometimes it just stays turned off. I was wondering if there was a fix for this.

This exists very long ago without a solution and most people including devs are aware of it... I reckon we need drivers/files from official KitKat to fix it, but I'd love to be wrong.
Sent from Google Nexus 4 @ CM11

AndyYan said:
This exists very long ago without a solution and most people including devs are aware of it... I reckon we need drivers/files from official KitKat to fix it, but I'd love to be wrong.
Click to expand...
Click to collapse
I'd say all it takes is at least one Razr M to be in the hands of a developer, that's all .
(No one reported this issue for Razr HD, Photon Q or Atrix HD so far...)
I guess that the Razr M display panel driver (in kernel) needs some small fix for this.

Ok, thanks guys. Its not a big deal as it only happens once in a while. I just wanted to see what the general consensus was. I might just make an app that restores the backlight on each wake. Do you think that this issue will be fixed now that the KK Firmware for the M was leaked? (We now have the right kernel?)

Related

Slider unlock sometimes doesn't work with incoming call

Once in a while when trying to answer an incoming call the unlock slider won't respond. I will slide my thumb to unlock and ...nothing. When this happens the call will just go to voicemail . The workaround is to touch the power button to turn off screen , then touch it again to wake it up ,then the slider will work and I can answer the call. Sometimes this takes too long and I miss the call.
This is not a deal-breaker as it only happens 5% of the time , still it is annoying. I have tried different roms with no real difference. Anybody else have this problem? Any advice other than get a new phone under warranty?
Ditto. And I always act as you did to work around the issue, only difference is, I haven't missed a call due to this.
In any case, based on experience, the chance of this happening could be minimized (if not eliminated) by always locking the phone from the "desktop" (e.g. do not lock the phone when an app is running).
BACK STORY:
I remember this happening (more than once) when someone called me up after a train ride. And the last thing I could recall is that I have locked the phone while playing Angry Birds / Fruit Ninja / Zenonia 2, etc.
But it still sucks that it happens.
I guess my real question is , are all Nexus s doing this sporadically , even rarely , or is my phone defective?
question... are the phones plugged in to a wall charger when this happens?
Nope. Only happened to me when I under clocked the CPU with Setcpu using the powersave profile (I was just testing things out).
DKYang said:
Nope. Only happened to me when I under clocked the CPU with Setcpu using the powersave profile (I was just testing things out).
Click to expand...
Click to collapse
can happen any time any place
ransome7 said:
I guess my real question is , are all Nexus s doing this sporadically , even rarely , or is my phone defective?
Click to expand...
Click to collapse
I'm not sure if everyone's having this, but I'm with you on this. I'm on stock but rooted 2.3.3. Experienced this since 2.3.1.
EDIT: My wife has this problem too, since 2.3.1 until 2.3.3 (not rooted).
cygnum said:
I'm not sure if everyone's having this, but I'm with you on this. I'm on stock but rooted 2.3.3. Experienced this since 2.3.1.
EDIT: My wife has this problem too, since 2.3.1 until 2.3.3 (not rooted).
Click to expand...
Click to collapse
Mine did it stock , I rooted and loaded roms to see if that would fix the problem , lessened but still there
My nexus s (i9020T) has exactly the same problem. I've also tried to flash different ROMs, including CM-7rc2 and stock 2.3.3, and the problem remains.
I tried to bind Multi-touch Visualizer 2 to long pressing home button, and found the when screen is unresponsive, it can still detect press near edges very well, but not the center. While I press at the edge and drap across the center, it keeps tracking my finger correctly. In addition, Locking and unlocking the screen can solve the problem temporally. I connect my phone with adb, and tried to "cat /dev/input/event0" The behavior confirms what I see in Multitouch Visualizor 2: the when the center of screen is unresponsive, nothing can be read from the device node.
I read the mxt224 touch screen controller doc, and it seems the chip features self-calibration, and thus I believe the "lock & unlock" will trigger the chip to tune it self in some way. I've also read the driver code of nexus s, htc incredible and moto droid x, all using the same controlling chip. Both HTC and moto would send calibrate command to the chip during resume, but sumsang does not. I guess this might be the reason, but I'm not skilled enough to port the drivers
I experienced it twice so far i think, but only have the device for a little more than 2 weeks.
I am on stock 2.3.1 currently.
Beside the lock&unlock method, I discovered a new way of getting screen back to work: rub your hands a couple of times and touch again... Anyway it seem the screen is not well calibrated.
problem seems fixed with my customized kernel
Last night, I modified the touchscreen driver and mach settings a bit on the source of netarchy's nice kernel, and compiled a kernel of my own. The screen now seems working well with my new kernel
Never have experienced this on the nscollab rom which is cm7 and kernel together stable. I suggest give it a shot
Sent from my Nexus S using XDA App
swa2k4 said:
Never have experienced this on the nscollab rom which is cm7 and kernel together stable. I suggest give it a shot
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
May I know how to perform the suggested steps, i have been experience twice since i bought it on 2 weeks ago
I would like to bring this issue up again (after so long) as I am still randomly experiencing this exact issue even with Ice Cream Sandwich 4.0.3 (Stock & Custom ROMs). Any fix yet?

ICS LOCK/STANDBY power button doesn't turn on screen !

I recently wiped all of my phone (factory+cache) and installed the latest 4.0.3 official update from SAMSUNG.
I also enabled the FULL DISK ENCRYPTION while doing this.
I am now waiting to decrypt it to see if this problem persits if I turn the encryption off.
The problem is that if I leave my phone locked for a few hours/minutes it randomly won't turn on the screen again, when I press the power button.
A hard reboot (holding) fixes this everytime. But this is not a fix, we all know.
It never happened on Gingerbread 2.3.5.
I am beginning to suspect there's a bug in the ICS firmware, although it's 4.0.3, it could slip through.
It's hard to say what's causing the trouble. I have connected the phone to USB now. Waiting for the symptom to show again. I assume I can get a good logcat.
adb shell logcat > logcat.txt
So I'm waiting for an error / event of POWER button at this moment, and will keep logging till it produces the same error again.
Regards,
That's called the black screen of death. It's an ICS bug. For now, rebooting seems to be the only solution ice seen on xda.
Sent from my GT-I9100 using xda premium
a67543210 said:
That's called the black screen of death. It's an ICS bug. For now, rebooting seems to be the only solution ice seen on xda.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I can't believe this ! Is this a SAMSUNG or an Android/ICS problem ?
My version is:
4.0.3
IM74K.XXLPQ
Any custom ROMs addressed this issue or how can you avoid this on ICS? Is the only solution to go back to Gingerbread ?
Hi guys, hope your well.
I am having a similar issue too. I am on Hydrogen AOKP Rom, and I get exactly the same. However, apart from just the blank screen, my phone gets extremely hot too.The only way to get it back on is to remove the battery. Very annoying!!
I cant seem to figure what it is. I have tried to search here on XDA for the resolution but to no avail. Could it be the Kernal? The Modem? Tweaking via SetCPU? or a combination of all? Atleast if I could get pointed to the right direction that'll be a start! lol
Are you guys getting the overheating problem too?
Its a bit like continual posting in the wrong forum nobody knows why ??
jje
rumz82 said:
Hi guys, hope your well.
I am having a similar issue too. I am on Hydrogen AOKP Rom, and I get exactly the same. However, apart from just the blank screen, my phone gets extremely hot too.The only way to get it back on is to remove the battery. Very annoying!!
I cant seem to figure what it is. I have tried to search here on XDA for the resolution but to no avail. Could it be the Kernal? The Modem? Tweaking via SetCPU? or a combination of all? Atleast if I could get pointed to the right direction that'll be a start! lol
Are you guys getting the overheating problem too?
Click to expand...
Click to collapse
No overheating (yet) you can help if you can keep logcatting through usb cable till it lock/standby freezes and your screen won't come on when pressing power ..
Install SDK + Drivers, write in commandprompt:
adb shell logcat > save.txt
Wait for the error / freeze where screen won't come on.
Then paste here or upload somewhere might contain a lead to a solution!
Double - sry - galaxy forgot login
It's a kernel issue. I had exactly the same problem. Flash the latest siyah kernel that should sort it out. I went through 10 different Roms till I worked it out
Sent from my GT-I9100 using XDA
thedadio said:
It's a kernel issue. I had exactly the same problem. Flash the latest siyah kernel that should sort it out. I went through 10 different Roms till I worked it out
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Nah!
It's there on all the kernels. I myself am a Siyah user.
I moved back to GB for this weird and terribly serious issue, but that time i didn't know it was a common problem.
This is ICS' best feature for sure.
I really CAN NOT believe how this issue is NOT yet known well and haven't brought in to front line. Google knows about it and yet I haven't seen any official statements about it. How ****in unbelievable or not perhaps? Google way?? Well **** it.
Utter Nonsense. What i wonder is, really, does any Android user actually use the phone but show off only??
I can almost reliably reproduce this problem.
I'm on ICS LP7 stock XEU version. When I have downloads running with Ttorrent, there's an almost 50% chance that the screen will not turn on once it goes to sleep. The phone is not frozen as my downloads continue to run; just that nothing is being shown on the display. If you hold the volume down button you will feel the phone vibrate to tell you it went into silent mode, which means the phone didn't freeze. After about a minute or so if I try again everything will work as normal, until I put the screen to sleep again.
gtcardwhere said:
I can almost reliably reproduce this problem.
I'm on ICS LP7 stock XEU version. When I have downloads running with Ttorrent, there's an almost 50% chance that the screen will not turn on once it goes to sleep. The phone is not frozen as my downloads continue to run; just that nothing is being shown on the display. If you hold the volume down button you will feel the phone vibrate to tell you it went into silent mode, which means the phone didn't freeze. After about a minute or so if I try again everything will work as normal, until I put the screen to sleep again.
Click to expand...
Click to collapse
Do the logcat as I provided the correct command to extract it to a file.
Then do your torrent thing, and make it crash- so we can debug !
Used to happen, since I installed latest hydrog3n-ICS rom (13-05) never had those again!
have you uv your phone so much?
i tried to uv my phone so much, and it can't turn on screen when i lockscreen about 1min
sunshean said:
have you uv your phone so much?
i tried to uv my phone so much, and it can't turn on screen when i lockscreen about 1min
Click to expand...
Click to collapse
uv?
ultra-violet ? is my phone in danger of skincancer ?
dezzadk said:
I recently wiped all of my phone (factory+cache) and installed the latest 4.0.3 official update from SAMSUNG.
I also enabled the FULL DISK ENCRYPTION while doing this.
I am now waiting to decrypt it to see if this problem persits if I turn the encryption off.
The problem is that if I leave my phone locked for a few hours/minutes it randomly won't turn on the screen again, when I press the power button.
A hard reboot (holding) fixes this everytime. But this is not a fix, we all know.
It never happened on Gingerbread 2.3.5.
I am beginning to suspect there's a bug in the ICS firmware, although it's 4.0.3, it could slip through.
It's hard to say what's causing the trouble. I have connected the phone to USB now. Waiting for the symptom to show again. I assume I can get a good logcat.
adb shell logcat > logcat.txt
So I'm waiting for an error / event of POWER button at this moment, and will keep logging till it produces the same error again.
Regards,
Click to expand...
Click to collapse
Hi,
It happened to me as well after the ICS update and I tried to plug the AC charger to see what happens, and surprise...the screen turned on .
It's not a fix (especially when away with no accessories) but it's better than nothing, hope this helps; also you should try plugging the USB cable. Tell me if it helps.
Thanks,
dezzadk said:
uv?
ultra-violet ? is my phone in danger of skincancer ?
Click to expand...
Click to collapse
Haaaaahahah! He means under volting. I don't know if you was serious lol but just saying. I'm on cm9 but don't have this problem :-/.
Sent from my GT-I9100 using xda premium
Yep,I mean under volting, you need to look your kernel, and I think it doesn't work fine because your kernel has under volting so much.
Sent from my GT-I9100 using Tapatalk
Reading around and installing load monitor from play store should fix this until a better solution is found
Sent from my GT-I9100 using Tapatalk 2
Best solution is to stay on GB because is more stable, until ICS gets better cooked!

SlimBean 4.3 Screen Wake on Standby

***TL;DR***I know now that 4.3 has this bug and it is something we will deal with. I understand the causes, but the problem is buried in the kernel vs the ROM, you can still read my semi adventure but I wanted to make this edit to save you time if you think I found an answer. Overall WIFI is a huge trigger for screen wakes along with shotty or chattery reception.***
First off SlimBean is pretty much the best ROM I've dealt with, so many options, faster then I've ever experienced, and sharp looking. I've been sharking around these forums for 2 years afraid to ever make a name and post due to my lack of knowledge. I love the search options for finding answers that this forum offers to visitors and I've surely used it to root an old AT&T Atrix 4G and now my current DD the Glacier. Now I feel as though I have a little bit of sense of what the heck I am doing and would like to share my path to figuring out how to make SlimBean 4.3 work for me. Who knows maybe this may help some people that have similar problems.
The problem::: On a SEMI clean install of [UNOFFICIAL]SlimBean 4.3 \\ Nightly \\ 22.08.2013 I noticed the Glacier in standby would suddenly illuminated with light although the screen was black. It was enough to light to catch my eyes as I was starting to fall asleep. I ignored it until morning then paid attention to it happening all day at work on and off constantly with the WIFI off and just mobile network, then mobile network off, reboot, nothing seemed to help and I couldn't bare the thought of the phone's screen just on all the time.
After reading threads about HTC's possibly having bad screen made from Taiwan I was in disbelief that it was the Hardware as coming from a year old version of MIUI, I never had a problem with the screen. Leading to the idea it must be a software issue / user issue in which I must of rushed the install of the ROM or it's a quirk in 4.3.
Prior to reinstalling the same ROM, I went with trying other similar ROM's finding [UNOFFICIAL] Carbon 4.3 \\ Nightly \\ 26.08.2013 literally was just released, also a super customizable fast ROM. Everything went smooth until I played music through headphones and the illuminated black screen was back. Now I'm definitely convinced it's the software so I move on to the source code of these ROM's ev_glacier-nightly-2013.08.27.
Ev_glacier-nightly-2013.08.27 Had no screen wakes after 2 hours idle on mobile network only. I wasn't in a location with WIFI as I believe a network with a lot of information chatter may be causing these standby black illumination wakes. Back to SLIM.
SUPER clean install. 1) Format SD card completely 2) fresh download w/ checked md5 of Slimbean 3) Full Wipe "wipe data factory reset" "wipe cache" 4) format/system & format/cache manually just in case 5) Clear Dalvik 6) And fix permissions since although I believe it has no point but it's just so easy to click just in case. Probably doing things double.
Here I am now.. Slimbean is back and nothing but the .zip has been installed along with updating Nova Launcher. I am waiting to reinstall GAPPS so I can first isolate this problem within the ROM itself. What I am noticing is on just mobile network 2g/3g/2g+3g I do not get the phantom wakes, but with WIFI on it so far is only happening about 20-30 seconds after the phone drops into Standby and at least now it's not long lasting, just a few screen black flashes and it's gone. The entire 20 minutes or so I've been typing this, keeping an eye on the screen it's been quiet. Progress is being made.
Now I have thoroughly read up on and used Better Battery Stats, Wakelock detector, and Greenify to help isolate problems prior to the clean install and am waiting to install any Google apps (play store) up until tomorrow so I can pay more attention to my phone and make sure it's just a WIFI wake lock causing the screen to illuminate black. Also was toying with the idea of installing 3.0.64 kernel. I'm curious as to see if it's not just the WIFI wake lock, but all wake locks that actually wake the screen. Once I'm ready to install the play store I'm going to start combing through the device using these fantastic guides and the aforementioned apps...
[GUIDE] The Total Newb's Guide to Wakelocks ::: [HOW TO] Fix Your Skyrocket's Battery Life ::: [GUIDE] Insanely Better Battery Life When Idle
My goal with this long post is to share my experience and also commended these developers on these awesome ROM's. I will post much shorter updates on how I fixed or found the exact problem. Mainly after searching I saw similar issues but not this direct "random black illuminated screen" problem. Thanks, and be sure to call me out on anything contained in this post.
the waiting game
At 9 hours from 100% charge, I'm at 40% battery with on 1.5 hours of screen time. I went through all my settings and disabled all sounds and haptic feed back. I have yet to install any apps and am running off the bare bones of just the ROM. WiFi & 4g mobile data were on all night with the screen flashing only if I used it then locked it with the power button.
Thinking I can live with these timeout 2-5 flashes, I start browsing the forum from my phone, put it down to get ready for work, look back at the phone as it is flashing black screen rampantly on it's own. Then it holds the black screen for a solid minute or two.
WiFi chatter wake lock must be doing this... Reboot to recovery - wipe dalvik - wipe cache - reboot phone. Now to test just 4g network, flash happens on first screen lock, but not as rampant. Hmmm. My next step will be to wait for full battery drain / charge then I want to try the kernal I mentioned above. 3.0.64 kernel.
Funny stuff
Realizing the Kernel I wanted to flash doesn't work with 4.3, I hope at least some of the 86 people that viewed my post got a laugh. Even the older version of SlimBean causes the random screen flashes and the screen on while charging even with the ROM settings for such off. WiFi seems to be the greatest cause. It's as if wakelocks are actually being represented as screen flashes since the kernel is so powerful.
I just don't want to use the CM ROM...
I'm going to dig around the forums further and type in different key words of my problem just to make sure I didn't miss someone already answering this question. Slim has all the functions I always wanted out of my droid and I'm dead set to make it work...or just live with screen flashes I guess.
Hope this is a comedy for someone.
only other link
I've found on the issue I have.
http://forum.xda-developers.com/showthread.php?t=1148057
Non-Stop ROMS
1) SlimBean 4.2 & 4.3 Both have this black screen flicker / black screen wake / black screen on while charging.
2) Carbon 4.3 Had it black screen on while listening to music / black screen constant while charging
3) Evolve 3.3 based of 4.3 seemed to work fine, but I wasn't a fan of the larger Icons and screen, similair to CM 4.3 so I didn't leave it long enough to test...
4.3 CM 4.3 black screen wake almost constant / black screen on while charging... also didn't last long to really test everything.
I am down the river if I want this to just go away. I have installed all these ROM on a completey clean formated SD card each time
I'm sticking with SlimBean as it has the looks and reacts like I expect my phone to. After doing some more searching and after a little time has passed for more 4.3 development there may be a kernel that will work better for me.
Oh here is another dead end I've found... http://forum.xda-developers.com/showthread.php?t=2185747&page=3 [KERNEL] Fixed the flickering screen problem,CM10,CM10.1,SENSE3.6 4.0 4.1 That goes no where...
wifi
WiFi is the biggest culprit for the random screen wakes. I've just been living with it since I dig the slimbean 4.3 ROM so much. Thought I might pop back on here to make some closure. I worked on removing some apk's from the already minimal gapps I installed and will soon start a separate thread on just that. As long as after searching I don't find the same info I figured out.
I think you've got the screen flicker bug.
Try flashing the .69 kernel, it claims to stop the flicker.
Also I know it's got something to do with the WiFi. I know a little about it though.
Sent from my myTouch 4g using xda app-developers app
thanks for the response
N_otori0us_ said:
I think you've got the screen flicker bug.
Try flashing the .69 kernel, it claims to stop the flicker.
Also I know it's got something to do with the WiFi. I know a little about it though.
Sent from my myTouch 4g using xda app-developers app
Click to expand...
Click to collapse
I see you all over the place when it comes to Glacier threads. Today at work I was searching around for a download link. I read through a ton of other ROMS threads hoping it was buried in the comments somewhere. So far I only turned up and old thread with a dead link and a couple of other threads you mentioning to other people to download the .69 KERNEL which I am guessing the full version number is 3.0.69, if it's not then there may be my first problem in finding the link...
*edit
this is the main thread I keep finding, you have so many other kernels on there
http://forum.xda-developers.com/showthread.php?p=43983635&highlight=+69#post43983635
I have a little idea about the screen flicker.
A member called zyGh0st told me. I've pmed Elgin but no response.
I'll pm coderzs too Lil.
Sent from my myTouch 4g using xda app-developers app
reading about kernals
N_otori0us_ said:
I have a little idea about the screen flicker.
A member called zyGh0st told me. I've pmed Elgin but no response.
I'll pm coderzs too Lil.
Sent from my myTouch 4g using xda app-developers app
Click to expand...
Click to collapse
All the Kernels in the Glacier Bible page you have been keeping up seem old. I'm nervous to try one since they obviously seem like they won't work. I'm game to try what ever and post on here my progress so if anyone else stumbles upon the issue they can guide their way through it.
I've been searching "kernel 3.0.69", "kernels 4.3 roms", "jb rom kernel", "4.3 jb kernel", sometimes including the term "glacier" or "MT4G" with little to no luck between XDA and just google itself. I always just find ROMS that just mention the kernel but have no downloads.
Reading your older posts I see that youve already tried the kernel.
Sent from my myTouch 4g using xda app-developers app
K is for kernel
N_otori0us_ said:
Reading your older posts I see that youve already tried the kernel.
Sent from my myTouch 4g using xda app-developers app
Click to expand...
Click to collapse
I tried 3.0.64 kernel, not this mysterious .69 kernel you have mentioned. If you have a link or mirror of it I'll be glad to give it a go.
___________________________________________________________________________________________________
Found how you added the 2 kernels to the Bible page, I just flashed .64 again and I'm nothing but bootloops. I'll give .62 a chance since now I'll have to re-flash Slim.
___________________________________________________________________________________________________
make the double bootloops with either of those 2 kernels. I waited like 5 minutes, restarted the phone to see if it would boot and it just stayed on the slim splash screen. Of course I wiped dalvik and cache before installing either.
Bottom of your 5th post
Sent from my myTouch 4g using xda app-developers app
addiction
N_otori0us_ said:
Bottom of your 5th post
Sent from my myTouch 4g using xda app-developers app
Click to expand...
Click to collapse
Oh yes, I head that already downloaded on the SD but the name CM_SENSE made me think it was a ROM not a kernel. The .66 kernel link is dead, but the .58 flashed & works but there is still the flicker on 4.22 SlimBean. 4.22 is so lame compared to 4.3. Even if there wasn't a flicker on 4.22 I don't think I'd keep it. Those big ICONS are just too much. I think that's why I like Carbon also. Anywho...
My addiction to messing with my phone is always in conflict with work. As if I don't have enough problem solving to deal with outside of cell phones.
I am going to try out the recovery I see in your signature, Recovery : 4EXT 1.0.0.5 RC8, just to see if it makes a difference. If you have the same phone without the same problem I must then eliminate the different variables to find the true problem. I found a "how to" and am either going to put in the time in a couple of hours or tonight. Then I'm going to start the rounds of testing ROMS / KERNELS all over again and I'll post my findings here.
I appreciate the back and forth, I actually got a can't thank anymore message because I used up my 8 yesterday~
Living with it
I've been just living with the screen flash. The ROM is just to sweet to give up. At some point if there it a completely stable 4.3 I may upgrade.
On a regular work day I don't have any available WIFI, so I toggle it off then reboot the phone every morning. I usually get a random screen flash everytime I manually lock / turn the screen off and that's it. With WIFI on I get random flashes at random rates and for random lengths.
Playing music invokes these random black screen wakes also, I've stuck to my old blackberry as my MP3 player...I know that statement seems extemely wrong and against all sciences, but the 9780 bold works perfect as a music player. They had the long-press song skip in the volume button well before anyone added it to Android.
If ever I find the correct ROM / KERNEL combination, or someone else figures out the problem and I find it, I will post it here. This winter I am going to get more into understanding & compiling roms + digging through code so maybe I'll find it myself...ha!
tonyMEGAphone said:
I've been just living with the screen flash. The ROM is just to sweet to give up. At some point if there it a completely stable 4.3 I may upgrade.
On a regular work day I don't have any available WIFI, so I toggle it off then reboot the phone every morning. I usually get a random screen flash everytime I manually lock / turn the screen off and that's it. With WIFI on I get random flashes at random rates and for random lengths.
Playing music invokes these random black screen wakes also, I've stuck to my old blackberry as my MP3 player...I know that statement seems extemely wrong and against all sciences, but the 9780 bold works perfect as a music player. They had the long-press song skip in the volume button well before anyone added it to Android.
If ever I find the correct ROM / KERNEL combination, or someone else figures out the problem and I find it, I will post it here. This winter I am going to get more into understanding & compiling roms + digging through code so maybe I'll find it myself...ha!
Click to expand...
Click to collapse
Have fun man, and If you ever need help or guidance just tell us, we'll be here

Nexus 7 Problem (hard to describe in a title)

So, just a little bit of background, I got my Nexus 7 on Christmas 2012. Recently, my Nexus 7 has been "shutting off" (I put it in quotes because it isn't really shutting off: the screen is just refusing to turn on) in the middle of the night. I've also noticed the whole screen freezing when controlling volume in certain conditions. Since I use my tablet for my alarm, having it off is doing me no good. Does anybody have any idea how to fix this? I thought it was a loose battery connector in the internals, but there was nothing loose.
I am running Google's official stock KRT16S with Oxydo kernel v14.
Thanks!
Sent from my Nexus 7 using Tapatalk 4
I suggest you go back to stock Rom with stock kernel and make sure the problem still exist.to solve a problem, first thing you have to do is find the cause of the problem, especially in here you have to find if it's software issue or hardware.So go back to complete stock conditions and check if the problem persist and if yes I would conclude it could be a hardware issue. It's hard to give more help without knowing more specific details like when did it started and if it's in that condition all the time ? Some pictures or screenshots will get you more help
go back to the stock kernel or try not to undervolt your kernel, you are having screen of death issue, device is not getting enough power.
also try a different kernel, not all kernels behave good on all devices.

Display driver issue? fixes?

My phone seems to have developed a display driver issue where part of the screen ghosts images, turns 50 shades of gray, etc. Apparently this is a common problem at one time one if one searches "fix moto x pure display driver" on google but cant find a fix for it.
Does anyone know how to fix this? Did motorola address this issue with a fix? Perhaps reflash the driver? Ive already tried wiping the phone and flashing to Nougat ([7.1.2] AICP for clark). Neither made a difference. It shows in twrp as well btw.
running out of ideas here. Hate to have to retire the old girl.
any ideas on a replacement for verizon networks...i need an sd card slot for additional storage and of course the phone needs to be rootable. Maybe a moto G?
What makes you think this is a driver issue? If you do a screen shot when this is occuring does it look normal or messed up? If it is a software issue, the screen shot will look messed up, if it looks normal then the hardware is at fault. That would give you about a 80% accurate answer.
There are no "known issues" with the display drivers in the Moto X S/P, so if it's software, best would be to reflash stock via fastboot and retest. If the issue recurs it is likely hardware.
acejavelin said:
What makes you think this is a driver issue? If you do a screen shot when this is occuring does it look normal or messed up? If it is a software issue, the screen shot will look messed up, if it looks normal then the hardware is at fault. That would give you about a 80% accurate answer.
There are no "known issues" with the display drivers in the Moto X S/P, so if it's software, best would be to reflash stock via fastboot and retest. If the issue recurs it is likely hardware.
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I thought it might be a driver issue by searching for "moto x pure display driver". My phone looks exactly like the one pictured in the first link in the search. Android authority is a pretty decent site and after reading through the comments section it does seem common enough.
Im going to try to reflash via fastboot as you suggested but im afraid i think youre right as it doesnt show on a screenshot. Its worth a try i suppose. Just dont have the $ for a phone right now.
thanks for the reply btw.
steveindajeep said:
I thought it might be a driver issue by searching for "moto x pure display driver". My phone looks exactly like the one pictured in the first link in the search. Android authority is a pretty decent site and after reading through the comments section it does seem common enough.
Im going to try to reflash via fastboot as you suggested but im afraid i think youre right as it doesnt show on a screenshot. Its worth a try i suppose. Just dont have the $ for a phone right now.
thanks for the reply btw.
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I haven't heard of any display issues in this regard since the X's initial release, and that was fixed pretty quickly with an OTA. None sense then... The "display driver" is built into the kernel, and if this was an issue I'm sure we would have heard more about it.
Sorry to hear, but this sure sounds like a hardware problem.
Okay so my issue was similar just that instead of the bottom half, it was happening for the full screen and it seems to have fixed itself after having the screen on full brightness overnight. It was a mistake actually. It all started when I was replacing my old battery cus it got so weak. I had no heat gun or anything or that sort around so I figured I could heat the phone up internally. Started running clash royale as it got the phone hotter whenever I played and changed the sleep period to 30 minutes because those are the things that make my phone heat up. So I did that. Replaced the battery yada yada, it works perfectly now. So I forgot to set the sleep period back and went to bed with the screen on. Somehow it just continued to stay on all the way till morning (or I believe so). Woke up to the phone hot, screen brightness on full. It was under my pillow too so the heat just kept building up. Needles to say, when I realised I closed the apps running, turned the brightness all the way down and locked the screen. I put it aside to cool off because I had just gotten up, wasn't in the mood. But seeing as I can't keep my hands always from my phone I picked it up like 3 minutes later. I'm writing this an hour after and the brightness is on the lowest setting. No ghosting, no lines being drawn up anywhere, no lagging, nothing. It's currently working like brand new. I should mention that the phone was plugged in the whole time. And mobile network was on. WiFi was off.
I'll keep monitoring the issue and I'll post and changes if any. Hopefully there won't be any.
_arxn said:
Okay so my issue was similar just that instead of the bottom half, it was happening for the full screen and it seems to have fixed itself after having the screen on full brightness overnight. It was a mistake actually. It all started when I was replacing my old battery cus it got so weak. I had no heat gun or anything or that sort around so I figured I could heat the phone up internally. Started running clash royale as it got the phone hotter whenever I played and changed the sleep period to 30 minutes because those are the things that make my phone heat up. So I did that. Replaced the battery yada yada, it works perfectly now. So I forgot to set the sleep period back and went to bed with the screen on. Somehow it just continued to stay on all the way till morning (or I believe so). Woke up to the phone hot, screen brightness on full. It was under my pillow too so the heat just kept building up. Needles to say, when I realised I closed the apps running, turned the brightness all the way down and locked the screen. I put it aside to cool off because I had just gotten up, wasn't in the mood. But seeing as I can't keep my hands always from my phone I picked it up like 3 minutes later. I'm writing this an hour after and the brightness is on the lowest setting. No ghosting, no lines being drawn up anywhere, no lagging, nothing. It's currently working like brand new. I should mention that the phone was plugged in the whole time. And mobile network was on. WiFi was off.
I'll keep monitoring the issue and I'll post and changes if any. Hopefully there won't be any.
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Click to collapse
Later on the same day: So I fell asleep for about 4 hours with brightness on low. (damn I sleep a lot) woke up and the issue returned. But I had the brightness on full for a while and it seems to have resolved again when I put it back to low brightness.
That's all so far. Still monitoring
I'm glad someone else noticed that when you slide the brightness bar it effects the way this display issue behaves. I was starting to think I was alone on this. Now this is just my experience on my phone of course. It seems to be around 2/3 way to full bright that it starts to flash the white lines on and off and then 3/4 + it is pretty much acts as it should, they go away! So I took a screenshot as acejavelin suggested and the screenshot was clear. So this would explain why updates don't seem to change anything since it does seem to be a certain batch with bad hardware. Can this hardware be solder changed? Guess I will keep an eye out for sale of xpure with busted digitizer/good lcd to test and possible mb swap.
Yes 1575 definitely has a display driver issue, i've noticed this too. I don't think there is a way to fix this, unless it would be fixed in Nougat.
But how sure are you that it's a driver issue and not hardware? That's why I'm waiting for nougat. If it doesn't fix the issue then I'm just going to have to retire the phone.
Sorry bro
If you're encountering a display problem in aftermarket roms and even on the bootloader and recovery menus, then it's most definitely not a "display driver" issue. As @acejavelin already pointed out, it's not a known software problem unless you're running the shipped Lollipop software release.
Mine has the same issues now and then but a restart fixes it always.
Bill720 said:
If you're encountering a display problem in aftermarket roms and even on the bootloader and recovery menus, then it's most definitely not a "display driver" issue. As @acejavelin already pointed out, it's not a known software problem unless you're running the shipped Lollipop software release.
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that's the point, problems are only in the stock rom. I've tried many custom roms and none of them have this issue, but unfortunately they have many other issues so i have to use the stock version.
But the Op!
onupirat said:
that's the point, problems are only in the stock rom. I've tried many custom roms and none of them have this issue, but unfortunately they have many other issues so i have to use the stock version.
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steveindajeep said:
I've already tried wiping the phone and flashing to Nougat ([7.1.2] AICP for clark). Neither made a difference. It shows in twrp as well btw.
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Oh. I just read this and assumed that we were all talking about the same thing. In your case, I'd perform some experimentation to make absolute certain that your findings aren't just coincidence.
Question re: hardware vs software
acejavelin said:
What makes you think this is a driver issue? If you do a screen shot when this is occuring does it look normal or messed up? If it is a software issue, the screen shot will look messed up, if it looks normal then the hardware is at fault. That would give you about a 80% accurate answer.
There are no "known issues" with the display drivers in the Moto X S/P, so if it's software, best would be to reflash stock via fastboot and retest. If the issue recurs it is likely hardware.
Click to expand...
Click to collapse
Hi ~ just read your msg, and tried your "screenshot test." The grayish area on my screen (which over time, comes & goes - haven't detected a pattern as to why/when) DOES show up on the screenshot.
If I understand correctly, that would tend to indicate that I am experiencing a software issue? (Not hardware)
I did do a Factory Data Reset, and am experiencing the same issue. I had not added any apps for an extended period of time, prior to this gray-area occuring. I did, however, drop the phone. I don't recall for certain, but I don't think the problem occurred immediately, rather, it started very shortly thereafter (1 -3 days).
And I am waiting for delivery of a battery, since that's shot (runs down very quickly, & shuts down with anywhere from 30% - 60%+ battery level).
Any suggestions for resolving this? I hope this post makes sense... And thank you for any ideas or assistance you can offer!
Hello everybody. I have the same problem.
And who ever changed the display? Do you want to understand this is the problem of the display, motherboard or drivers?
I think it's a software problem, a hardware will not stop glitches when you flash a different software until and unless you fix it. In my experience, after my phone break because of downgrade to marshmallow stock firmware, and with an unlock bootloader i update my phone using OTA update, suddenly it stop working. blank screen and i tried try to recovery it with xt1575 IMG file to boot it again, mine it was xt1572(India) then I start facing a lot of problem, glitches, can go back to marshmallow stock firmware so and so... Now I'm trying to find a solution !!!! Custom ROM, CM13 work better and no glitches till now... I will Report soon
Moto x style/pure display problem
steveindajeep said:
My phone seems to have developed a display driver issue where part of the screen ghosts images, turns 50 shades of gray, etc. Apparently this is a common problem at one time one if one searches "fix moto x pure display driver" on google but cant find a fix for it.
Does anyone know how to fix this? Did motorola address this issue with a fix? Perhaps reflash the driver? Ive already tried wiping the phone and flashing to Nougat ([7.1.2] AICP for clark). Neither made a difference. It shows in twrp as well btw.
running out of ideas here. Hate to have to retire the old girl.
any ideas on a replacement for verizon networks...i need an sd card slot for additional storage and of course the phone needs to be rootable. Maybe a moto G?
Click to expand...
Click to collapse
I think maybe due to brightness control problem, could be the software or hardware problem

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