Develop Bugs

TP2 freezing issue

Hello guys,
first of all, yes, I read all the similar threads, but I don't think that they are like my case...
so .. I'm using my TP2 over a year and a half and it was brand new
the phone is hard-spl-ed and I changed my Roms hundreds of times
my Freezing issue starts about month- month and a half
and it appear when the phone goes in stand-by then i cant drag the unlock button .. to solve it, I have to touch and moving my finger many of times over the whole screen , and at some time it start to work.. it is like my touch screen stops responding.
I'm using mostly Energy roms, but also I'm using the XAndroid versions
and this issue was also when i'm using Android, but the intresting is, when it happens when the phone is not at stand-by the screen moving but right after remove my finger it returns to previous position and this is all the time again until i start to touch and drag over the whole screen
I already known that the issue is not from the Xandroid, because I removed everything , and re-installed clean Energy Rom , and it happens again
It is not and from the Storage card (micro 4GB class 6) because it also happens when i removed the card ...
So can somebody advice me something , what could be the problem, what I can try to do or check...
thank you very much for the assistance
Regards

patzkata said:
Hello guys,
first of all, yes, I read all the similar threads, but I don't think that they are like my case...
so .. I'm using my TP2 over a year and a half and it was brand new
the phone is hard-spl-ed and I changed my Roms hundreds of times
my Freezing issue starts about month- month and a half
and it appear when the phone goes in stand-by then i cant drag the unlock button .. to solve it, I have to touch and moving my finger many of times over the whole screen , and at some time it start to work.. it is like my touch screen stops responding.
I'm using mostly Energy roms, but also I'm using the XAndroid versions
and this issue was also when i'm using Android, but the intresting is, when it happens when the phone is not at stand-by the screen moving but right after remove my finger it returns to previous position and this is all the time again until i start to touch and drag over the whole screen
I already known that the issue is not from the Xandroid, because I removed everything , and re-installed clean Energy Rom , and it happens again
It is not and from the Storage card (micro 4GB class 6) because it also happens when i removed the card ...
So can somebody advice me something , what could be the problem, what I can try to do or check...
thank you very much for the assistance
Regards
Click to expand...
Click to collapse
do you have a screen protector? it will need to be removed if so. you might need to increase you screen sensitivity as well

yes I have screen protector
how can i increase my screen sensitivity.. do I need to start using my device w/o screen protector ?
i still can not understant how this start to happening, before I never had any problems in past...

patzkata said:
yes I have screen protector
how can i increase my screen sensitivity.. do I need to start using my device w/o screen protector ?
i still can not understant how this start to happening, before I never had any problems in past...
Click to expand...
Click to collapse
because what happens with screen protectors is that sometimes the screen itself reads pressure from the screen protector as if your pressing down. and since tp2 isnt multitouch, it thinks your pressing the screen before you actually press it. it happens a lot, sometimes it happens to me. but my screen protector is removable so i just pop it off real quick to release the pressure it creates and boom, much much faster and smoother.
i think i read somewhere you can make your tp2 multitouch, that might help. but ive yet to try it so i cant say.

you can search the forums to find the best way to increase sensitivity, there are many diff ways. heres one. it says hd2 but i think it works for us too
http://forum.xda-developers.com/showthread.php?t=614781
again, this may not be your issue, its just a possibility because the situation sounded similar to mine

uncleswoop said:
you can search the forums to find the best way to increase sensitivity, there are many diff ways. heres one. it says hd2 but i think it works for us too
http://forum.xda-developers.com/showthread.php?t=614781
again, this may not be your issue, its just a possibility because the situation sounded similar to mine
Click to expand...
Click to collapse
thank you very much for whole the help, i'll test and will write back if not working
I was never thought that the screen protector could be the problem, so thank again

ok. but dont forget to remove the screen protector. if you leave it on, increasing the screen sensitivity will only make the problem worse.

HELP! Phone doesn't wake up

My phone goes to sleep
and does NOT wake up, the bottom row of buttons and keyboard both light up if I open them or press them.
Help please!

rossle12 said:
My phone goes to sleep
and does NOT wake up, the bottom row of buttons and keyboard both light up if I open them or press them.
Help please!
Click to expand...
Click to collapse
Stock ROM or custom? Any overclocking?
The phone powers up if you soft reset, correct?

Well, I found out it was a small problem with the rom.
It was a custom rom, and I just installed a different one and it works flawlessly.
With the other one, the light sensor did not work either.
Also, I dropped my phone the other day, and a really small spring fell out.
And the back plain on my screen is loose and opens up easily..

Which ROM?

I hate to hijack this thread but i am having the exact same problem. Basically when i put my phone to sleep its hit or mess as to if it will wake. It seems to have started when i flashed Energy ROM. It was terrible after that, so I switched back to the stock ROM available from the HTC website and all seemed well at first. Now its back to hit or miss.
I cant really rule out a hardware issue such as a broken sensor or something because I'm not sure how the mechanics of it work. When i push the power button on top the phone wakes but not the screen I know this because the 4 lights on the bottom light up and the keyboard as well. I can hit the button repeatedly but it doesnt help. At other times it works flawlessly, but usually does not.
Can anyone give me a suggestion as to what it could be, or a way to rule out a hardware issue?

Exactly my problem!
It was perfectly fine for the first day or so before it started crapping out again..
Can someone please help us with this problem?
It's mind consuming and it's making me worry.
Until TP3 is out, I won't get a new phone ):

Well, the problem is discussed in great detail on the internet, but no one can give a definitive answer. ..
I've been a touch pro 2 user for exactly 3 days... My new HD2 from T-Mobile is in the mail... This is a un acceptable flaw with no real solutiion... Good Luck TP2 users....

Good luck to you.
I've had mine for over two years and it was flawless
Just one recent drop determined everything
Although I Must say, it was one hell of a durable phone

Yea, dont get me wrong. I really like the phone. Thats why I'm getting the HD2. Great OS and big beautiful screen. I'm gonna miss the slide out keyboard but I think thats what breaks these phones.
I'm excited that there's the possibility of running Windows Mobile 7 on it.

rossle12 said:
Can someone please help us with this problem?
Click to expand...
Click to collapse
I'd like to try to help. But you never answered my question of what ROM you are on (and which one you tried previously).

I've determined my problem is 100% hardware related. If I open my keyboard and then grab the screen and tweak it while pressing the power button it comes onn 100% of the time. Sux, but at least I know the cause now

djowen6565 said:
I've determined my problem is 100% hardware related. If I open my keyboard and then grab the screen and tweak it while pressing the power button it comes onn 100% of the time. Sux, but at least I know the cause now
Click to expand...
Click to collapse
Every once in a while my phone would turn on and I wouldn't know why
But yeah, I think it is hardware related.
I previously used Energy then went to Jacko's.
Both were perfectly fine, just the upsetting sleep function and light sensor would keep the phone off.

HELP: Same problem Phone not waking up
Hi saw this thread and was wondering if anyone can help me.
I have an HTC Touch Pro 2 for some month now...
Using the following details:
OS Version: 5.2.21887 (21887.5.0.86)
ROM Version: 2.07..401.1 (80303) WWE
ROM date: 02/04/10
Radio ver: 4.49.25.91
stock ROM basically...
THe issue is that the phone doesn't wake or when using it just freezes/hangs.
Not much software/apps installed... and memory is good as well.
I just don't know what's going on...
Help please.
Thanks

rossle12 said:
Every once in a while my phone would turn on and I wouldn't know why
But yeah, I think it is hardware related.
I previously used Energy then went to Jacko's.
Both were perfectly fine, just the upsetting sleep function and light sensor would keep the phone off.
Click to expand...
Click to collapse
I'd agree with the notion that its likely hardware related. I've flashed maybe 10 different builds of Energy over the last 7 months or so, and never once had and issue with the SOD (sleep of death) that I can recall. A bad flash can sometimes happen. But since you flashed another reputable ROM (Jackos), that somewhat eliminates the possibility that a bad flash is the culprit.
You can start from scratch, by running Task29 to format the ROM area of the phone's memory, and reflash the ROM. But this would be just to eliminate the possibility of a bad ROM flash. My gut says that you won't see any different results.
Running the phone "clean" for a while (to see if you still have the SOD) without any software installed or any other modifications will eliminate the possibility that any software or mods are responsible for the issue.

are you sure its hardware related? because my phone started doing this yesterday too...I had an energy rom from october, and it was really buggy. I am only able to keep my phone from sleeping when it is plugged in to some power, so i flashed the newest energy rom and still having the same problem...wont wake up from sleep
EDIT:
I dont see how this can be hardware related because everytime i soft-reset, the screen works again. this problem only happens when the device goes to sleep...

Any overclocking?
As I already mentioned, I never had any SODs on Energy that I can recall, except when using OCT (OverClocking Tool).

I have done no overclocking...I just flashed the newest energy rom like 15min ago...is there anything else I can do or check? it looks like the phone works still, just no backlight...

After flashing the ROM, maybe try running it "clean" for a day or two, don't install any software or do any mods, reg edits, etc. If you still have problems with the phone waking up with a new ROM, and no other software or other mods, than it may indicate a hardware problem.
And be sure to run Task29 before you flash the new ROM, if you don't already do that.

You guys should read the following thread:
http://forum.xda-developers.com/showthread.php?t=648134
You're not the only ones (by any means) with the SOD issue. But it isn't at all clear what causes the issue. Lots of different theories in that thread about various software or ROMs, with no clear solution.
Lots of conflicting info, but some comments on the thread suggest (as I mentioned) that Task29 may help (certainly can't hurt).
moto2000 said:
are you sure its hardware related?
Click to expand...
Click to collapse
Nope, definitely not sure, especially after reading the thread linked above. But as I suggested before, Task 29, try a different ROM, and run it clean with no software or mods, and start eliminating the variables.

[Q] Black screen on HTC Desire

Hi guys
i have a strange issue on my device,since stock ROM i guess, the problem is follows:
my screen just go black sometimes i thing it happend only when a call is in progress or when call is ended by the third part, the screen just stay black and no solution but uplug battery and start up the phone
i had this problem eaven on my stock Rom froyo 2.2, then i try leedroid 2.3 and it was ok i guess, then i try oxygen rc6 everything works superb,fast,clean,smooth but the black screen occures multiple times in one day (today around 3 times) so i was forced to return to my stock froyo 2.2 and hopes will be ok,
the problem is as i search thru internet... seems like one of the sensors works baddly, i think is the proximity sensor, what can i do? should i sent my device to repair? i realy appriciate any help and suggestions and ideas how can fix this problem....

still no solution it happens on stock froyo 2.2 too but in smaller period as on oxygen rc6, i try set --- display off to value 30 minute from previously 2 minutes and problem dont occured for last 2 days

this might seem like an ovbious answer but when your making a call the desire has a light/proximity sensor to the left of the top htc logo that turns the screen black when it senses something, this is to stop you pushing buttons with your ear.
i dont mean to insult your intelligence or anything, just saying ya know if it happens when not in a call it sounds like a software issue

i already know that, searchin a lot about this problem mate trust me, i also know when the proximity sensor is located and what is his function but the issue happening only when a call is made never happend just like that so i thing no sw prob, using stock froyo 2.2 now no root just a clean official and it happens like 2 times per day when i was calling more that 2 minutes when i set in setting--display to turn off screen in 10 minutes this problem dont show up soo i dont know realy maybe i sent my device to reklamation will see

This happens me with root and without root. It's when your using anything that has with the SD card to do with. Like the gallery, it has gone black for me to under a call though... I dont know how to fix this problem, and it's very frustrating to take out the battery all the time.

My friend i am working in mobiles but i couldn't guess the problem cause i bought my cousin this HTC desire until she removed the screen guard (( the plastic sticker for protect the screen)) from the screen and i solved the problem so easily.
Best of luck

true is that i am using Zagg shield, but this cannot solve the problem cuz i try few days without any screen protector and the problem was still there,
but i guess i solve this problem few months ago, i notice that the black screen after call happend when my network is set to "GSM only" strange but since i use WCDMA only the problem is gone, dont know surely but guessing, also when i use mobile network in gsm only mod, phone freezes totaly and only unplug battery helps, as i said since i am using wcdma/hsdpa/3g only non of these strange thing happens
hope this help for someone

AssassinSvK said:
true is that i am using Zagg shield, but this cannot solve the problem cuz i try few days without any screen protector and the problem was still there,
but i guess i solve this problem few months ago, i notice that the black screen after call happend when my network is set to "GSM only" strange but since i use WCDMA only the problem is gone, dont know surely but guessing, also when i use mobile network in gsm only mod, phone freezes totaly and only unplug battery helps, as i said since i am using wcdma/hsdpa/3g only non of these strange thing happens
hope this help for someone
Click to expand...
Click to collapse
Hi, guy!!
I've the same problem several months ago. Have you solved by using WCDMA only??
Thanks

Hi all,
This was happen to me last few day and i google whole world, finally i find my answer and i hope it was help for those who facing this kind of problem.
I can confirm this problem no related to rooted or without rooted phone. this problem definitely come from the proximity sensor which people highlighted this sensor located at top left of htc logo which u can see a blue color circle there.
Try watch this video of disassemble htc desire and you will find the way to clean this proximity sensor area.
Tools to use for dis-assembly:
1. Philips screw driver.
2. Torx screw driver
Cleaning tools:
1. a wet small cotton buds.
Hope this method can help.
Area to clean:
1. The proximity sensor which you will see covered by a black rubber
2. The casing area which i show on photo.
Disassembly Video:
youtube.com/watch?v=sXZqIjtFoAU
i231.photobucket.com/albums/ee126/nkh73925/untitled.jpg
I were unable to post due to spamming protection system from XDA. Please add urlsef the http.

[Q] Fully crashed at random? (acting like turned off) has it happend to you?

Very strange thing happened to me today, went to wake my phone up from lock screen but I pressed the power button and nothing, no wake! I knew I had lots of battery left, but thought maybe it died for some reason, plugged in charger, no response still could not turn on, even holding the button down did no change, nor opening keyboard.
I then removed the battery and re-inserted, booted up and its working fine again
What happened?!

It just happens This happens to my Desire Z every month or so, no matter what rom I use. Recently I changed the radio the latest release, but it won't help I suppose... we'll see.
It seems nobody knows why this happens, many questions are scattered around the the forum about this hang and no answer

sorry for my english
gps make this problem (+ google maps + all google maps based programs)
just turn gps switch off
when you have to use gps, turn it on, use it, turn it off, reboot
and DZ should work fine
http://www.google.com/support/forum/p/Google+Mobile/thread?tid=69305f1c1e5f8c31&hl=en

Not sure what causes this, but it happens occasionally to me too. Maybe once a month or so... Happened earlier today. Hadn't used Google Maps nor do I have any apps that use GPS to track my location.

Happens to me all the time, in average about once every 1-2 days. I put my phone on my desk with screen off, and an hour later it does not respond to the on/off button at all. Sometimes it will reboot when I press the button for over 15 seconds, but most of the time I have to pull the battery, which is a drag since I have a silicone phone protector. I have also noticed that every once in a while, the battery will be fully discharged when it does this. This morning my phone was at 80% battery power, I used it for a minute to check mail, then put it down. 15 Minutes later it was dead, and when I pulled the battery, all I got was a little screen saying 'Please connect charger immediately'. Kinda scary.
I've seen lots of posts about this too on androidforums.com and on MoDaCo. My wife has a Samsung Galaxy Ace on Android 2.2.4 and she has the exact same problem. I haven't found a solution yet, but it seems to be software-related (since it's not limited to Desire-Z), and more specifically Android-related (as it also happened on stock phones without any third-party apps installed). I upgraded to Android 2.3.3 last week and that did not solve it.
Other suspicions I found on other fora:
Correlation between 'phone sleep' and 'WiFi going to sleep' (some people report they benefit from keeping WiFi always off unless they really need it, some people report success keeping WiFi always on; for others - like me - it does nothing or made it worse)
Correlation between phone and SD card (phone does not work properly if the SD card is not the original one, or has not been formatted on the phone)
Correlation between WiFi and SD card (people report reformatting the SD card on their device helped, after they've turned WiFi off)
I have heard people that have had their phone replaced 7 times and all 8 phones did it, some others got the problem solved with one replacement, so it seems not all devices do it.
Check out this thread: http://androidforums.com/samsung-galaxy-ace/312084-randomly-turning-off.html
A personal observation of mine - and maybe hardware gurus can comment on it - involves the micro-USB connector. Not only is it a pain to connect (compared to mini-USB), but I have noticed that it very easily 'jitters' if there is a slight bend in the cable or if you move the phone while it's connected. The plug will then sit slightly crooked in the connector and the phone will stop charging. And actually, I'm pretty sure that the first time it 'died' on me was when this happened. Would it be possible that this triggers the event? And that the micro-USB is the common cause?

I wonder what radio all these dying phones were running? I had 12.28b.60.140e_26.03.02.26 , now I'm running latest radio, but only a few months will tell if that helped or not...

Update: it's been about a week now since I've disabled GPS and I haven't had a single SOD since! Seems that at least in my case GPS was the culprit, like others on here already suggested. Can anyone else confirm?
Sent from my HTC Vision using XDA App

Grrruk said:
I wonder what radio all these dying phones were running? I had 12.28b.60.140e_26.03.02.26 , now I'm running latest radio, but only a few months will tell if that helped or not...
Click to expand...
Click to collapse
It's not the radio
Sent from my HTC Desire Z using XDA Premium App

Spastic909 said:
It's not the radio
Sent from my HTC Desire Z using XDA Premium App
Click to expand...
Click to collapse
+1.... no way it can be
Sent from my HTC Vision using XDA App

I also have random shutdown issue... Not sure it is related to the rom... But it happens when i get out of my house, maybe caused by wifi disconnect issue.. it happen just a few days ago... Now i off the wifi seems ok...
Sent from my HTC Vision using XDA App

SteRo said:
Update: it's been about a week now since I've disabled GPS and I haven't had a single SOD since! Seems that at least in my case GPS was the culprit, like others on here already suggested. Can anyone else confirm?
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
i have the same since a few weeks
SteRo go plese to the google link in my post (#3) and report gps problem

gandalf15 said:
i have the same since a few weeks
Click to expand...
Click to collapse
my GPS on 24 hours already is ok... but Wifi is a no... i come out of the house this morning... it hangs again... totally black screen and it boot up again when i press the power button so my story tells me never on the wifi when you do not needs it... maybe i'll sent it to HTC SC for checking when i get a new phone... i duno whether i can survive 3~5 working days without it...

try this for a week or too:
have gps allways off when you dont use it.
when you have to use gps, turn it on, then after use turn it off and reboot the phone
and notice how many times you phone hangs in this too weeks

Hello,
i have the same issue with my Desire Z. Many people say its GPS related, i think so, too.
I never hat issues with GPS while navigate. But because the issue is probably caused bei GPS, i have a idea.
I use the wipe efs-data using for GPS from here: http://forum.xda-developers.com/showthread.php?t=1028405
I never had freezes since this. Maybe it helps everyone. Please try and give feedback. Thanks.

Yesterday my Desire Z did exactly that. For the first time. First I thought the battery would be dead, but connection it to the charger didn't even make the orange LED turn on. So only taking out the battery and re-inserting it brought my phone back to life.
I had WiFi turned ON and GPS NOT turned OFF (though no Maps or anything running, so there was no satellite icon in the status bar the last time I had used it).
I will keep watching it, if GPS OFF or an EFS-WIPE might help. But right now it has crashed the first time in about two weeks, so it will be hard for me to tell any improvement before at least a month has passed. ;-)
Tronar
Addendum: after finishing this post, I went downstairs to pick up my phone. And it was dead again! Seems to be happening more often at the moment, than I thought. So I'm going to do an EFS-WIPE now.

Tronar said:
no Maps or anything running
Click to expand...
Click to collapse
google maps is running still in background (also when You try to kill it with taskkiller it will stand up) and use (or try to use) gps for example for location for weather forecast. it can happen that the gps icon cam in notifications bar only a few seconds so You can't see it
it is possible that another apk use (or try to use) gps to get Your location, geotagging photos or so.
just have always gps off (when you haven't to use it and reboot after using) it helps

Bad News, wiping efs-data did not resolve the SOD . Yesterday it happens again.

My gf has the Desire Z and loves the phone - cept for this random issue of her phone freezing on standby. After a bit of screwing around I found out it is definitely related to the GPS module. Whether it's a hardware or memory leak it doesn't matter to her. You can crash her phone anytime by simply using the GPS and any software (she likes google maps / navigation) when she's done whether she turns off the gps or not, makes no difference - within a few hours at the most - it'll crash every time.
The short version, after using your GPS you'll have to restart your phone and you'll never have it crash again.

1moreCyberdude said:
The short version, after using your GPS you'll have to restart your phone and you'll never have it crash again.
Click to expand...
Click to collapse
exactly as i allready wrote in the #3 post

[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…)