Develop Bugs

Phone randomly switches off. Needs battery pull.

Hey guys,
I'm new to the forum. I have tried running a search for this problem already and haven't found anything related.
My phone randomly switches off and requires a battery pull to be turned back on again (Yes the conventional button pressing and power button pressing etc doesn't work). I haven't had the phone switch off on me whilst using it, it usually happens when I pick up my phone to check for messages etc. and realise it's not on.
I have a Desire Z running Virtuous 1.0.2 with the Advanced kernel.
The SetCPU screen off profile is 245/691 on 'interactive'.
Anybody have any ideas as to what may be the cause?

Same thing happens to me sometimes but it usually happens when I'm charging maybe its the battery. Have you noticed any unusual drain on your battery?
Ps. I know very little about phones and what not but I know that your battery could be over charged therefore your phone does what it does. Just a bit of guess.
Sent from my HTC Vision using XDA App

This has been called "SOD" (screen of death) by some. Probably not related to CPU clocking/stepping, like the more common "screen wake issue" on Virtuous, as the symptoms are pretty different in my experience. As you already mentioned, with the CPU clocking/stepping "screen wake" issue (common on Virtuous if you use the advanced kernel), you can power on the screen with multiple pushes of the power button, or opening the keyboard. With SOD, no amount of button pushing does anything, and the phone is completely unresponsive.
Several theories abound as to the cause of SODs, but nothing conclusive, unfortunately. Likely a hardware problem, possibly combined with kernel and/or GPS.
Personally, I've found that going back to my stock shipped ROM and using the Godspeed kernel is the only combination I've tried so far (including Virtuous and CM7) that seems totally free of SODs. But your results may vary.
Any evidence of this issue when you were on the stock ROM? If not, you might consider just reverting back (easy if you made a nandroid). If the problem persists on the stock ROM, and you are still on warranty, you might consider returning your phone to stock and sending it in for repair, as this seems the surest way to solve the issue. This isn't an option for me, since I purchased mine with no warranty (unlocked and imported). Otherwise, you might try different ROM and kernel combinations to see if things improve.
I've discussed this some more on the following similar recent thread (links to additional related threads on that post):
http://forum.xda-developers.com/showpost.php?p=13002702&postcount=7

redpoint73 said:
I've discussed this some more on the following similar recent thread (links to additional related threads on that post):
http://forum.xda-developers.com/showpost.php?p=13002702&postcount=7
Click to expand...
Click to collapse
Thanks for shedding some light on this issue for me. I'll have a try doing what you suggested and see if it's any better.

pmatang said:
Thanks for shedding some light on this issue for me. I'll have a try doing what you suggested and see if it's any better.
Click to expand...
Click to collapse
Dammit, I hit the Thanks button instead of Quote. Oh well, you get a free Thanks!
BTW, feel free to Thank my post, if you found it helpful!
At least one person I've suggested a different kernel to (to try to solve this issue), did not find it helpful. But it helped in my case. And you can do a nandroid backup to make sure the change is completely and easily reversible if you don't like the result.

[Q] Colored snow, screen distortion, earphone speaker not working on Tilt2

Hey everyone,
I'm currently running the latest Jackos and I believe everyone was fine with the speaker you hold to your ear in conversation until about 2 weeks ago. Maybe a week or so after I installed the newest Jackos. Now I can't hear anything on it, but the microphone works fine. Speakerphone works fine, and my bluetooth earpiece works fine. I've searched for help on this and can't find anything to fix this problem.
The other problem is right when I boot the phone, instead of getting the black screen with the red diagnostic text, I get a white screen with colored speckles all over the screen. The speckles don't move at all and if I let it sit for 20 seconds or so, it will then show the HTC logo on black and continue booting. I can't get into the bootloader, I can't hard reset the phone, etc. Any ideas how to fix this? I haven't tried flashing the same/another ROM yet, but I don't know if that's even possible with this snow screen problem.
I've run Task29 and all the usual stuff every time I've flashed and I have never seen this happen until a couple of weeks ago. It does it NEARLY every time I soft reset or shutdown and boot or pull the battery and boot. The battery charges fine and it runs fine otherwise.
The screen will get random glitches in it, even when the battery is full and it makes me suspect maybe the battery's going bad but it'll run all day without problems and it doesn't get warmer than usual or anything like that.
Also, sometimes it says there's no SIM inserted and I've pulled it out, the contacts are nice and gold and nothing seems wrong.
Any ideas?
My sig is out of date but I have to head out right now and can't switch it yet, but it's the latest Jackos with 6.5.
Thanks,
Eric

I would flash a different/stock ROM and see if anything changes.
If no, hardware problem. If yes, software problem .
You seem to think you cannot, but AFAIK if you can task29, you can flash a ROM. Either way, putting an nbh on the SD card and doing power+vol up+reset should work regardless, unless the device is really bricked - in which case it wouldn't be booting.

Okay thanks, I'll see what I can do with it.. It does boot fine, though for a week I thought it was bricked because of the snow, but I decided to just let it sit for a week and gave it a shot, and poof! no snow on the first boot. It had the regular red text on black. Then I reset it from the slide to reset menu item and it went to snow again. I let it sit there and about the duration that it would be on the diagnostic screen, it was snow, then magically showed me the HTC logo and booted normally.
So it seems to me that it somehow doesn't want to show diagnostic info but does everything else.. So maybe the bootloader mode IS working, I just can't view that. I'll see what I can do.
Does the screen corruption/no sound in earpiece seem like a ROM issue, or battery related, or phone going bad problem to you?
And I've been looking for a while trying to find a suitable replacement, but haven't seen anything that I really find appealing (either in Android or WP7).. Any thoughts on that?
Thanks again,
Eric

shep2112 said:
So it seems to me that it somehow doesn't want to show diagnostic info but does everything else.. So maybe the bootloader mode IS working, I just can't view that. I'll see what I can do.
Click to expand...
Click to collapse
Flash stock, it re-flashes everything... Make sure it works, then flash back to Jacko's.
shep2112 said:
Does the screen corruption/no sound in earpiece seem like a ROM issue, or battery related, or phone going bad problem to you?
Click to expand...
Click to collapse
This is what we're trying to troubleshoot .
shep2112 said:
And I've been looking for a while trying to find a suitable replacement, but haven't seen anything that I really find appealing (either in Android or WP7).. Any thoughts on that?
Click to expand...
Click to collapse
Talk about loaded questions! I haven't found anything that's appealing with a hardware keyboard yet... The supposed TP3 (on Sprint it's the "Arrive"...) was a real disappointment.
MT4GS looks decent, if you can live with tmo...

Thanks for your replies, I'm going to try to flash to stock in a little while and see how that goes.
The new Glide phone that AT&T has sounded promising until I read a review of it. Slow camera, 480x800 on a larger screen, etc. It didn't seem as cool as I had hoped it would be after that.
I'll write back with my progress or lack thereof with this TP2.
Eric

I installed HTC's official AT&T ROM and the screen corruption seems to be less extensive but looks different too. The snow at startup is still present though.
There was a radio that came with Jackos ROM, is there any chance that's to blame? Though it worked fine for a couple weeks before these weird screen things started happening.
I haven't tried making a voice call yet to test the earpiece/earphone/loudspeaker or whatever the proper name is for it but since nothing else is really 'fixed' I'm not sure it will work either.
Thanks,
Eric

shep2112 said:
I installed HTC's official AT&T ROM and the screen corruption seems to be less extensive but looks different too. The snow at startup is still present though.
There was a radio that came with Jackos ROM, is there any chance that's to blame? Though it worked fine for a couple weeks before these weird screen things started happening.
I haven't tried making a voice call yet to test the earpiece/earphone/loudspeaker or whatever the proper name is for it but since nothing else is really 'fixed' I'm not sure it will work either.
Thanks,
Eric
Click to expand...
Click to collapse
The stock ROM should've come with a radio as well...
task29 & flash stock? Otherwise perhaps you have a hardware problem... I don't know what to make of this snow .

The earpiece/loudspeaker thing isn't fixed either. I'll try a Task29 tomorrow or tonight if I can't sleep (thinking about this stupid phone! ) and then flash this ROM again and see what happens and let you know.
Thanks again

screen wont come back on during call

my wife has the att nitro hd, when the screen goes off during a call sometimes nothing including power button will turn it back on. Anyone know of a fix? did the ATT small update fix this?
Actually it comes back on after a long minute or two. Not very helpful if you need the dialpad or keys, etc.
I have just rooted it for her and installed CWM.
I have added a few proximity tweaks to build.prop
gsm.proximity.enable=false (rebooted twice but screen still goes off)
also used the ro.lg.proximity and the mot.lge.proximity (dont recall exact wording) both were set to a value of 5.
I'll have to take alook into the lg hidden dialer menu to see if I can disable this.
I dont like this sensor on my device either, but I have an option in settings to disable it, which makes it bearable.
thanks for the help guys.
I have noticied LG throws together some junky builds, typos, bad english/grammar. Wonky sensors etc. Incorrect kernel build ReadMe's
I thought I recall someone with another device just placing a peice of tape over the sensor. hmmm..worth a try.
cheers.

chrisrotolo said:
gsm.proximity.enable=false (rebooted twice but screen still goes off)
also used the ro.lg.proximity and the mot.lge.proximity (dont recall exact wording) both were set to a value of 5.
Click to expand...
Click to collapse
Congrats. Today, you learned that most of the "tweaks" found at XDA are utter bull****

aremcee said:
Congrats. Today, you learned that most of the "tweaks" found at XDA are utter bull****
Click to expand...
Click to collapse
What about the tweaks that aren't BS? Are they already included in your CM9 builds?

From what I can tell, pretty much the main thing that build.prop is good for is providing information about the system and software (i.e. info about the build). It's not really used much for useful configurations as far as I know.

networks tweaks actually have doubled me download speed.
I still have faith.
but can anyone answer my questions I posted in ICS SLim thread and PM'ed Andasa , no responses yet.
does ICS slim or CM9 have option to keep lcd no during call? and does it work??
what's working not working? I found changelogs but not a working/not working list for CM9.
and has anyone successfully restored a nandroid from ICS to GB without real issues?
thanks guys.

i doubt the ota fixed your issue as the issue is not one that occurs for every nitro.
I can tell you that when I make a phone call they screen stays no.
what's working not working, well, many of us are running it daily with no probs.
as you prolly know, it is a nightly build so a public list of what's working or not isn't rly part of the deal.
i've succesfully restore a nandroid from both slim and cm9 back to the stock att rom and others many many times. dozens.

thanks good enough.
I will have to give it a go.
would you recommend one or the other?
CM9 or slim?
thank you.

well, I like them both a lot. slim is just a trimmed down version of cm9 and i _think_ it does run just a bit snappier........maybe..but it's not wildly different from cm9. I usually switch back&forth throughout the day.

There's no setting in CM9 to disable the proximity sensor, although there may be a way to do it.

We just got a Nitro HD for my wife and her phone also has this issue. I have not gotten to know the phone well enough to try rooting or anything else of that nature, it's pure stock.
When she makes a call the screen turns off immediately after hitting the call button and will not wake up. When she receives a call we get a glimpse of the in-call screen with the various buttons etc but then the screen turns off. If the other party hangs up her screen turns back on, but if she calls something automated, like voicemail, she can't do anything except pull the battery to disconnect.
I've tried putting my thumb over the proximity sensor, hitting all buttons including power, and nothing makes the screen wake up or turns the phone off other than a battery pull.
The phone was running a build from last November when we first got it (V10i?) and today prompted us to update, so I did that hoping it would solve the problem. The phone is currently on V10j, but the problem persists.
Any help?

no driver said:
We just got a Nitro HD for my wife and her phone also has this issue. I have not gotten to know the phone well enough to try rooting or anything else of that nature, it's pure stock.
When she makes a call the screen turns off immediately after hitting the call button and will not wake up. When she receives a call we get a glimpse of the in-call screen with the various buttons etc but then the screen turns off. If the other party hangs up her screen turns back on, but if she calls something automated, like voicemail, she can't do anything except pull the battery to disconnect.
I've tried putting my thumb over the proximity sensor, hitting all buttons including power, and nothing makes the screen wake up or turns the phone off other than a battery pull.
The phone was running a build from last November when we first got it (V10i?) and today prompted us to update, so I did that hoping it would solve the problem. The phone is currently on V10j, but the problem persists.
Any help?
Click to expand...
Click to collapse
If you bought it from a store, get it exchanged for a new one.

actually works much faster on cm9, but therr still should be an optin to keep lcd on during call. i found some free apps that will disable hardware drivers but cant find the name of the proximity sensor driver, only that is named LGE.

Unfortunately it was given to us by a friend after my wife lost her Captivate, so taking it to a store to exchange is probably not going to work too well. As far as I can tell it was never used before we got it--the battery was still in it's own sealed pouch, the texting and driving warning was on the phone, and the phone went through the whole initial setup routine--but they didn't send us the box, I guess to cut down on mailing costs. I was hoping there was a known solution.

Ok, I downloaded two proximity sensor test apps today, but neither showed any activity. On my Captivate I get different readings with Proximity Sensor Finder (market link), but on the Nitro it is stuck at 3cm and it doesn't register anything no matter where I put my hand over the phone.
Can someone whose phone works right try installing this app and make sure that it picks up different readings on this device? OP, if you are still having issues, can you also try this app and see if it is static for you?
Thanks.

Took off the screen protector that they installed at the AT&T store and now the proximity sensor works just fine. OP, do you have a screen protector on your device?

we had an awfully thick one from att. we have since changed it to a super thin one. screen off is not a real problem on cm9, however i feel all devices should have the option to disable proximity sensor/keep lcd on during calls.

It's worth trying to use the warranty on the phone. Even though you dont have the original sales reciept, the phone has been released for less than a year, so no matter when you bought it, it is still within it's year long guaranteed warranty window.
Finished reading the thread, I suppose this post is now irrelevent

[Q] "Phantom Touch Input"

PLEASE SEE BOTTOM OF OP FOR UPDATES
-----
Greetings all,
[Backstory]
I've been flashing ROMs for about a year now. I started off with Virtuous Team Gingerbread and the Sense 3.x ROMS. I had no issues.
Then I moved to CM7, and MIUI, also on Gingerbread. No problems.
I've been using the CM9/CM10 ROMs since they appeared for the Incredible 2, from AOKP and Aeroevan, respectively.
Here is where the problems start.
[Problem]
On ICS and JB ROMs, I get what I have dubbed (there is probably a better name for it) "Phantom Touch Input".
At first I thought this was caused by normal bugs and glitches in the ROM. I did my best to deal with it. Usually a simple lock/unlock would solve the issue, temporarily.
So what would happen? Without touching the screen, I would get the long press menu to show up, and then the screen and capacitive buttons would freeze. Or the screen would start to slowly half scroll to the side, and again, freeze.
The most annoying part is when I am typing on the phone. I have tried other keyboards, be it from the MIUIv4, or the default keyboards of 4.0.x, 4.1, or 4.2. All the sudden random keys are pressed, and continue to be pressed, even when my fingers are nowhere near the screen.
However, no one else seems to have this issue, so it looks like I am the lone wolf here with this problem.
Can anyone provide insight? A possible fix? Or am I forced to deal with this on all 4.x ROMs?
---
UPDATE 1: Issues also occurred on CM7.2, so I may be facing a hardware issue.
UPDATE 2: Issues occurred in 4ext Touch. Looking around on YouTube, others (Incredible S users) have similar issues.
Nearly confirmed as a hardware issue.
Check Page 2 for video links.

[::AP::] said:
Greetings all,
[Backstory]
I've been flashing ROMs for about a year now. I started off with Virtuous Team Gingerbread and the Sense 3.x ROMS. I had no issues.
Then I moved to CM7, and MIUI, also on Gingerbread. No problems.
I've been using the CM9/CM10 ROMs since they appeared for the Incredible 2, from AOKP and Aeroevan, respectively.
Here is where the problems start.
[Problem]
On ICS and JB ROMs, I get what I have dubbed (there is probably a better name for it) "Phantom Touch Input".
At first I thought this was caused by normal bugs and glitches in the ROM. I did my best to deal with it. Usually a simple lock/unlock would solve the issue, temporarily.
So what would happen? Without touching the screen, I would get the long press menu to show up, and then the screen and capacitive buttons would freeze. Or the screen would start to slowly half scroll to the side, and again, freeze.
The most annoying part is when I am typing on the phone. I have tried other keyboards, be it from the MIUIv4, or the default keyboards of 4.0.x, 4.1, or 4.2. All the sudden random keys are pressed, and continue to be pressed, even when my fingers are nowhere near the screen.
However, no one else seems to have this issue, so it looks like I am the lone wolf here with this problem.
Can anyone provide insight? A possible fix? Or am I forced to deal with this on all 4.x ROMs?
Click to expand...
Click to collapse
Not exactly sure, I would say its hardware if it happens on all the roms. Have you went back to CM7 or MIUI since this problem started? I would revert back to one of them and test for a couple of days to see if the problem continues. If the problem is only active in ICS or JB then someone else will have to give you a hand on a resolution.

ThePhantom97 said:
Not exactly sure, I would say its hardware if it happens on all the roms. Have you went back to CM7 or MIUI since this problem started? I would revert back to one of them and test for a couple of days to see if the problem continues. If the problem is only active in ICS or JB then someone else will have to give you a hand on a resolution.
Click to expand...
Click to collapse
Ok will do when I have the chance.
Thanks for the speedy reply.
But let's say it is a hardware issue...
Do I unroot/restore/whatever and bring it back to Verizon?
Thanks.

[::AP::] said:
Ok will do when I have the chance.
Thanks for the speedy reply.
But let's say it is a hardware issue...
Do I unroot/restore/whatever and bring it back to Verizon?
Thanks.
Click to expand...
Click to collapse
Yes if the phone is still under warranty
I'm so fresh you can suck my nits...

Flashed CM 7.2
My home button didn't work, but that doesn't really matter.
I still experienced the same issues.
On a side note, wow CM7.2/Gingerbread is smooth....damn kernel. But stock 2.3.x is so ugly
Anyways, it seems like I should just "start clean".
I'm not sure what that entails - not just a full wipe...something more...tips?

[::AP::] said:
Flashed CM 7.2
My home button didn't work, but that doesn't really matter.
I still experienced the same issues.
On a side note, wow CM7.2/Gingerbread is smooth....damn kernel. But stock 2.3.x is so ugly
Anyways, it seems like I should just "start clean".
I'm not sure what that entails - not just a full wipe...something more...tips?
Click to expand...
Click to collapse
I use 4ext recovery myself, and I do a "full wipe" by format all partitions/factory data reset, then I see a lot of people also say wipe cache and dalvik so I throw that in as well, it don't take long but just in case a factory reset don't get them I just do it...lol. Hope that helps, and that may clear up some bugs with ICS and JB roms if you weren't doing that before. Just make sure you do a backup before wiping everything. Wouldn't want you to be without a phone if some process hiccups.

Thanks for the info.
Should I do anything with my SD card? It shouldn't affect ROM performance, but a wipe wouldn't be a bad idea, yes?

[::AP::] said:
Thanks for the info.
Should I do anything with my SD card? It shouldn't affect ROM performance, but a wipe wouldn't be a bad idea, yes?
Click to expand...
Click to collapse
I doubt that the SD card would affect the performance, but as long as you have backups of everything you can do as you please, backup backup backup. You don't want to lose everything, trust me I have seen bad things happen to guys that don't backup, and I have learned from experience as well.

Right right I know.
I'll try 4ext on a fresh ROM and see how things go.

Not a good idea to flash the touch version of 4ext in light of my issues.
Did a Nandroid, hit back, then screen input froze. The on-screen time is updating, but are the capacitive buttons are lit up but do not respond/give haptic feedback, let alone the touch screen itself. Power button just moves to the power menu, where I again cannot select anything.
Pulling battery :/
This is why I will never (want to) purchase a phone without a removable battery.
So looks like my issue isn't software related. (This issue can in no way be software related [or even caused by], right?)
I've had the phone for over a year...but I guess I'll try with Verizon.
*sigh*
What a pain.

Looks like I am certainly not alone.
(Better video) http://www.youtube.com/watch?v=25CaiveQoQg
(Similar) http://www.youtube.com/watch?v=kANVkc-Sk74&feature=related
I'm just really pissed off. And there isn't a phone in the market that I want.

That looks like possibly a bad digitizer, you can replace that fairly cheaply if you are out of warranty. That would be my best guess, and keep in mind I am no expert. Here is a link so you can see the process:
http://www.youtube.com/watch?v=LQL9gakQyuI

ThePhantom97 said:
That looks like possibly a bad digitizer, you can replace that fairly cheaply if you are out of warranty. That would be my best guess, and keep in mind I am no expert. Here is a link so you can see the process:
http://www.youtube.com/watch?v=LQL9gakQyuI
Click to expand...
Click to collapse
That is what I was thinking.
I'll also see if I can milk anything out of Verizon. I'm already an unhappy customer, given the lack of ICS, especially when promised.

Yep, digitizer.
http://forum.xda-developers.com/showthread.php?t=1399085

Good luck with Big Red, and let us know if you get it resolved.

ThePhantom97 said:
Good luck with Big Red, and let us know if you get it resolved.
Click to expand...
Click to collapse
Thanks, I'll keep everyone updated.
I'm sure I'm not the only one who has had issues. Hopefully word spreads, especially to those still under warranty who are suffering from a faulty digitizer.

[Q] Galaxy Nexus Sleep of Death

Problem: Cannot turn on the screen by pressing the power button sometimes. The screen is black or very dim, I cannot tell. One can see nothing on the screen, and it doesn’t accept any touch input, either. The phone still rings if there’s an incoming call. If this happens, the following several presses (about 10 - 20) on the power button will probably lead to a reboot. The “screen auto-rotate” and the proximity sensor may fail after the reboot, but will recover after a manual reboot.
Frequency: Fewer with higher Rom version. About once per day for 4.3.
Other description:
 The problem frequently happens when I just take the phone outside my house/office, and seldom happens when the phone just stays somewhere.
 The problem seems to be irrelevant to the remaining battery capacity or the uptime, but it never happens when charging.
 The problem seems to be irrelevant to the Apps installed.
 The problem seldom happens in the first 3-4 days after flashing a Rom, but happens more and more frequently as time goes by. My guess is some cache is stuffed by some trash, which causes the problem. The phone may be fine as long as the trash can be cleaned up on a regular basis.
 I manually reboot my phone at most every two days.
Solutions tried, but don’t work
 Flashing official ROMs 4.0.4, 4.1.1, 4.1.2, 4.2.2 and 4.3 following the procedure “adb reboot bootloader; fastboot oem unlock; flash-all; fastboot oem lock”, without google wallet, not rooted.
 Turning off the auto-brightness control, as suggested by some post on the Internet.

Does it look like it goes to standby normally or does the screen show gibberish and then turns off?
Sent from my Galaxy Nexus using XDA Free mobile app

Thymo said:
Does it look like it goes to standby normally or does the screen show gibberish and then turns off?
Sent from my Galaxy Nexus using XDA Free mobile app
Click to expand...
Click to collapse
Thank you very much.
I think it's standing-by normally even through the screen is black (or very dim, I cannot tell), since it rings if there's an incoming call. I can see nothing from the screen, and I don't think the screen accepts any touch input, either.
Does this answer your question? Thank you.

Bobby_yan said:
Thank you very much.
I think it's standing-by normally even through the screen is black (or very dim, I cannot tell), since it rings if there's an incoming call. I can see nothing from the screen, and I don't think the screen accepts any touch input, either.
Does this answer your question? Thank you.
Click to expand...
Click to collapse
Thanks.
Was just asking if you had gibberish yes or no. In that case i've got a different issue than you (Suspecting f*cked GPU).
Have you tried a different ROM/Kernel combination maybe it's related to that.

Thymo said:
Thanks.
Was just asking if you had gibberish yes or no. In that case i've got a different issue than you (Suspecting f*cked GPU).
Have you tried a different ROM/Kernel combination maybe it's related to that.
Click to expand...
Click to collapse
No.
No, I just tried the official ROMs. Any suggestion?

Perhaps it's just busy in the background and running low on RAM. Give LagFix a try. Sorry can't link atm as I am on mobile...

eKeith said:
Perhaps it's just busy in the background and running low on RAM. Give LagFix a try. Sorry can't link atm as I am on mobile...
Click to expand...
Click to collapse
Thanks a lot. I'm trying it.

Bobby_yan said:
Thanks a lot. I'm trying it.
Click to expand...
Click to collapse
LagFix does NOT help in my case. Any other suggestions? Thanks.

I've also had this blank screen with calls still ring issue for as long as I can remember, nearly 2.5 yrs.
I've always suspected it's my ROM and so I'd try out another ROM'S, BUT no other ROM works like how I'd like, so I always come back to my ROM.
It doesn't happen every single day, but it does happen very often.
I've tried using apps that auto reboot daily, but eventually this blank screen issue will return.
Unfortunately I can't seem to find any solution, so I just put up with it, it's like the 1 only flaw with my ROM.
&
Not to be at all rude, but I'm really glad op has had this issue from testing other versions of Android, cause then at least I know I don't need to give up my great tablet mode ROM.
LOL

I think I've finally found a work around for this screen of death.
Using Exposed, download/install this module/extension:
Disable Proximity
http://repo.xposed.info/module/com.mrchandler.disableprox
It does exactly what it's name is and ever since then I've not once had to remove my GN battery to work again because the screen went completely dead.

NVM
Screen still goes dead.
Anyone find an actual fix to this?

isajoo,
I had pretty much the same problems with my Galaxy Nexus running CyanogenMod 11 M12.
It got better by doing the following :
Blowing dry air in the earpiece… though the proximity sensor is clearly beside it. Can't do any harm though, I guess.
Settings/Applications/All/menu/Reset applications preferences (or whatever that's called in english) : that seemed to do a lot of good to my phone ! However, it's a very unsatisfactory answer on a technical point of view, as I still don't know WHAT was precisely needed. It's a "magic wand" solution for which I can't give an explanation.
Not specifically related, but greatly helped my phone in the responsiveness area : Trimmer (fstrim) (https://play.google.com/store/apps/details?id=com.fifthelement.trimmer), an updated version of LagFix that you may already know
Hope that helped !
(I wanted to try http://www.androidlegend.com/how-to-perform-proximity-sensor-calibration-on-any-samsung-phone/ as well, but apparently, /sys/class/sensors/proximity_sensor/prox_cal does not exist on my phone…)