[Q] Backlight errors - G2 and Desire Z Q&A, Help & Troubleshooting

So after rooting the other day with Visionary+ and bumping my processor up, my backlight on my screen doesn't always come on. The screen is still responsive and I can see it if I put a light on it at the right angle. Just wondering if I should take it back or if restoring it completely will fix this. It seems like it has to do with software that it doesn't work only sometimes. But yet again it can be a hardware issue. Someone please help me out with some advice on what to do.
T-mobile G2
1.42 ghz
Visionary+ 14 temproot

I had the same problem its because when you oc there is not enough voltage to turn your screen back on sometimes since your cpu using more power . Try setting up a profile on setcpu for when the screen is off and set the max on that anything lower than 800mhz that should solve your problem.
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bahmanxda said:
I had the same problem its because when you oc there is not enough voltage to turn your screen back on sometimes since your cpu using more power . Try setting up a profile on setcpu for when the screen is off and set the max on that anything lower than 800mhz that should solve your problem.
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Thanks man for helping a noob like me
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Related

Phone getting stuck a low clock speeds

Every once in a while when I wake my phone up, the clock speed stays at what it gets set to when the screen is off. The profiles seem to not work at this point until I reboot. I'm running stable cyanogenmod. Is there any way to remedy this?
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Anybody got anything?
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I thought that I had this problem on my cliq... turns out that the profiles were switching but the widget wasnt updating...could that be your issue?
Durkbeef said:
I thought that I had this problem on my cliq... turns out that the profiles were switching but the widget wasnt updating...could that be your issue?
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No. I did have that problem on my G1 but on this phone when it says it's running at 300 Mhz, it is. Apps open slower, linpack is low. It's definitely getting stuck somwhere.
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I wkuld recomend auto detecting speeds to make sure its got the right info for your kernel. Then i would reboot the phone. Also try turning the widget off. If your still stuck uninstall setcpu and start frrom scratch. I would reflash my kernel at this point as well.
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shortlived said:
I wkuld recomend auto detecting speeds to make sure its got the right info for your kernel. Then i would reboot the phone. Also try turning the widget off. If your still stuck uninstall setcpu and start frrom scratch. I would reflash my kernel at this point as well.
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Thanks man. I'll give all those a try.
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Phone keeps shutting down randomly

So after rooting my girlfriends g2 and installing cyanogen mod and coredroid mod the phone sometimes turns off.when my girlfriend turns on the power button it just shows the HTC screen and load from thr beginning as if you've just turned on the phone.I hear the it might be cause she gets no signal in school or something about the CPU speed....i'm not really sure but all I know is she never had it before I rooted her phone. Does anyone else have this problem?
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I'm confused. What do you mean by you installed both Cyanogen mod and CoreDroid mod.
it has to do with the cpu settings
I´m having the exact same issue after installing the cyongenmod 4.2. Please how to chage cpu settings?
Cyanogen 4.2..? Pardon me, but that's a typo correct? Either way off the top of my head the only app that controls CPU and is free is rom toolbox, look for it on market
inckka said:
I´m having the exact same issue after installing the cyongenmod 4.2. Please how to chage cpu settings?
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If you're on a fresh install of CM, thr cpu speed isn't the issue; CM defaults to an overclocked speed.
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Do a wipe. Reflash the latest nightly. 263
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Battery

Hi guys! When I got up this morNing my battery was at 100%, after 2 hours of screen off, it was at 55%. Any ideas what the hell is going on? I am using coredroid 1.2, set CPU I'd set to 1194/968, but screen off is set to 245/245. Any ideas? Thanks in advance 7
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coachmoore said:
Hi guys! When I got up this morNing my battery was at 100%, after 2 hours of screen off, it was at 55%. Any ideas what the hell is going on? I am using coredroid 1.2, set CPU I'd set to 1194/968, but screen off is set to 245/245. Any ideas? Thanks in advance 7
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What's your battery usage overview saying?
Lol, don't even know where to find that on here... I've looked.
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coachmoore said:
Lol, don't even know where to find that on here... I've looked.
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It's at settings>about>battery use
Also, I'd suggest uping your screen off profile one notch or you'll risk wake issues. You might also want to lower your minimum from 968, you're basically telling your device to never run slower than 968 and also check that the screen off profile has a higher priority than your main profile.
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You probably have a bad app or system process keeping the phone awake.
I'd also recommend dropping your wake min down (even as low as 245). There's no need to force the processor to run at 968 no matter what. For the sleep setting, I'd try popping the max up to 368 (I think thats the next step up?) because you can have wake issues.
Ok thanks guys! I'll give these a try.
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Phone goes in bootloop once a day?

I have rcmix3d 4.0 and rcmix3d and dirty v11.1 kernel and i have st cpu to 380-1.8 but once a day my phone goes in a bootloop. Usually when i am using the phone. This problem didnt occur when i had ARHD but i like rcmix i tried to change the kernel no diffrence i changed the OC no diffrence i dont lnow what it is when it goes in a bootloop i will take the battery out and it will be working fine, but it always once a day goes in a bootloop.
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Try dropping the max CPU speed.
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I have its 1.8 ghz but yeh il decrease just to double check
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I dropped it to 1.8<1.6 but its still goes in a bootloop it did it once today and once yesterday. I cant figure out the problem. It will go on bootloop even when the power is on economy also known as power efficiency.
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I found out what is wrong it does it when it gets really warm this would happen after excessive use. Help plz?
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Your overclocking is heating up the CPU and the phone. You should try even lower frequencies. High temperatures are bad for your battery.
I recommend you to not clock more than 1.38 GHz.

What causes random reboot in every rom?

I wonder wat causes all the random reboot,is it got to do with undervolt,overvolt,CPU speed and minfree value?
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Steven How said:
I wonder wat causes all the random reboot,is it got to do with undervolt,overvolt,CPU speed and minfree value?
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..overvolt?
Anyway undervolting and CPU speed can definitely cause reboots. Some phones can't go beyond 1.2GHz and I know undervolting can cause instability when brought down too low.
Personally I haven't had a random reboot in as long as I can remember, but I also don't undervolt and I don't OC past 1.2GHz.
Well,I'm using sense rom in the moment,enabled swap and supercharge.. and oc it at 468-1458mhz.. =\ still reboot,does vm heapsize affect rebooting?
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Steven How said:
Well,I'm using sense rom in the moment,enabled swap and supercharge.. and oc it at 468-1458mhz.. =\ still reboot,does vm heapsize affect rebooting?
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My phone's upper limit is also at 1.4GHz, runs stable on it, but haven't really felt the need for that. One thing that comes to mind is that your lower limit is pretty high. What governor do you use? Do you have a profile for screen off and what's the frequency fork there?
I would assume that with that setup the phone gets pretty heated, which could very easily cause random reboots. Any idea what temperature it usually runs on?
Myth010 said:
My phone's upper limit is also at 1.4GHz, runs stable on it, but haven't really felt the need for that. One thing that comes to mind is that your lower limit is pretty high. What governor do you use? Do you have a profile for screen off and what's the frequency fork there?
I would assume that with that setup the phone gets pretty heated, which could very easily cause random reboots. Any idea what temperature it usually runs on?
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468-1457mhz smartass screen in,122-468mhz screen off conservative.. =\
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Maybe you should try lowering the upper limit to 1.2GHz for a while see if it makes any change... in the meantime it might be helpful to know:
a) Which specific rom are you using?
b) Any custom kernel?
Myth010 said:
Maybe you should try lowering the upper limit to 1.2GHz for a while see if it makes any change... in the meantime it might be helpful to know:
a) Which specific rom are you using?
b) Any custom kernel?
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Click to collapse
Android revolution 6.3.3 (sense 3)
And unity v9 kernel..
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mine used to reboot when i first had it, searched the net & it suggested the sim card.... made sure it was pushed in properly & its been fine ever since....
I found out when I use this android revolution 6.3.3 rom,and flash a music player mod by lyapota,it mix up the word,like holding home it appear recent app,but after flashing I get your personal information and if I use home long press to multitask,the whole phone will just reboot :/
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