[Q] G2 screen sometimes won't turn on - G2 and Desire Z General

I have a T-Mobile G2 that's been rooted and flashed several times (cm6, virtuous, supervillainz, senseginger, cm7) and through I think all of them I noticed an issue with coming out of sleep where the screen doesn't turn on
it still reacts to touch (ie I can slide to unlock), and the bototm touch keys light up, but there's no backlight or picture on the actual screen
sometimes it takes several off-on cycles to get it to work... I've recently noticed (and may be just imagining it) that the trackpad wakes it up with a much better success rate
details:
HTC Vision (G2)
Android 2.3.3
Baseband 12.28b.60.140eU_26.03.02.26_M
Kernel 2.6.32.28-cyanogenmod-g58d929e [email protected] #1
CyanogenMod-7.0.0-RC2-vision
any ideas would be welcome before I lose it and start poking at the kernel, radio and whatnot
thanks,
L

happens to me in virtuous, never happened to me on CM (i havent tried cm7 yet)
i believe its a problem with the cpu scaling, ie when the screen is off, processor drops to 245mhz and when the screen turns on, speed doesnt scale up fast enough
i usually underclock my g2 to 599mhz (governer set to on demand) but if i go any lower than that, getting the screen to come on becomes a frustrating project lol

I have the same problem, its so annoying especially when someone calls. Its been mentioned in other threads and I'm sure its a known problem but like u I need a fix. Stock ain't so bad as long as u can see who's calling and what time it is without trying to wake the phone 20 times. Please will someone finally answer this question? Or do we all need to revert to cm 6.1 or stock????? Small problem but big outcry.
Sent from my HTC Vision using XDA Premium App

thanks, I downclock to 200mhz on screen off
I'll up it and see if it makes a difference

Are you using the screen off animations in CM7?
Sent from my HTC Glacier using XDA App

screen off yes, screen on no

Try disabling the animations all together and see if it helps. Also are you OC'd above around 1.2ghz?
Sent from my HTC Glacier using XDA App

I've disabled them for now, gonna see if it helps...
yeah OC to 1516MHz, do you think this affects it?

There was a known issue with CM7 not too long ago where if you had the screen off/on animations activated in conjunction with being OC'd at around 1.2 or above it would cause the sleep wake issues. Took 3 or 4 on/off cycles with the sleep button on order to get the screen to come back on.
The solution was either to disable the screen animations or not to OC very high.
The other remedy recommended earlier is also legit. Set your screen off CPU profile to around 300 or 400mhz. Your problem should be solved by tinkering with all 3 variables. Failing that I would recommend a wipe/reflash and/or hitting up some folks in the CM7 thread to see if anyone else has that issue after tinkering with the above solutions.
Good luck man, I know those little bugs can be frustrating.
Sent from my HTC Glacier using XDA App

thanks for the tips...
I've now upped the minimum clock to 400 across all profiles and turned off the screen off animation... if that doesn't do it, I'll turn down the maximum clock, and if that still fails disable setcpu completely
I will report back any findings

allixsenos said:
thanks for the tips...
I've now upped the minimum clock to 400 across all profiles and turned off the screen off animation... if that doesn't do it, I'll turn down the maximum clock, and if that still fails disable setcpu completely
I will report back any findings
Click to expand...
Click to collapse
I see you have a strange problem.
I use 275mhz when sccreen is off and about 476 mhz when screen is on and nothing like this has happened to me.
Sent from Mars

Seems like nature of the beast. I get it too. Are yall using setcpu? I think its an issue with it. U might try cputuner and see what happens. But it rarely happens now that i set my setcpu to conservative or smartass.
Sent from my HTC Vision using XDA Premium App

this is indeed an issue with downclocking the phone on screen off profile... as soon as I set the screen off profile to anything below the stock 806 mhz, the issue appears
I've reenabled both screen off and on animations, the issue still hasn't reappeared... so it's the downclock :/

I have seen it on Sense ROMs but not CM7, doesn't clocking your phone at 800 when display off eat up a lot of battery also?

I am, unfortunately, not that techno-savvy when it comes to cellphones. But I am having the same problem.
The most I get is a bit of back light, but everything else about the phone seems to be working. Is there anyone who could possibly help me figure out how the hell to fix this?

Related

issues with SetCPU

i had SetCPU installed on my phone, and when the phone would shut the screen off, by timing out or being locked, it wouldnt wake up from sleep.. i know at least one other person this has happened to, but removing SetCPU got rid of that problem.. does anyone know whats up?
You're lucky. SetCPU didnt even work on my SGS. It just FC'd everytime I loaded it. I didnt have root, which probably accounts for this issue, however it should still load up - just with locked speed setting bars.
I had the exact same problem you have mentioned below. I also get this issue with the autokiller app.
soraxd said:
i had SetCPU installed on my phone, and when the phone would shut the screen off, by timing out or being locked, it wouldnt wake up from sleep.. i know at least one other person this has happened to, but removing SetCPU got rid of that problem.. does anyone know whats up?
Click to expand...
Click to collapse
Sent from my GT-I9000 using XDA App
I'm pretty sure that SetCPU won't work with the SGS as things stand, root or not, for changing the clock rate (unless that built-in thingamagig for unlocking HTC phones' clock rates works).
Did you make sure no default profiles were set up when you installed SetCPU that were set to underclock the CPU or do anything else weird when the phone goes to sleep/is idle? That would be a good place to start.
If anyone could get me a log (force close/crash) or a /proc/last_kmsg (reset) that would be great.
coolbho3000 said:
If anyone could get me a log (force close/crash) or a /proc/last_kmsg (reset) that would be great.
Click to expand...
Click to collapse
You, sir, are a credit to this forum.
coolbho3000 said:
If anyone could get me a log (force close/crash) or a /proc/last_kmsg (reset) that would be great.
Click to expand...
Click to collapse
I'm sure someone's probably told me before, but how would we do this?
I installed SetCPU, I have root, but it just FC all the time
When rooted setup works fine as long as you just use it for monitoring and don't change the profile
Sent from my GT-I9000 using XDA App
Okay, that's odd. It's worked this time, although I did nothing different.
coolbho3000, tell me what I need to do to send a logcat and I'll use profile to see if it crashes. For me, profiles are rather important, when the screen is off I want to limit it to like 200mhz or something.
i figured out why SetCPU makes my phone never wake up, the settings i was using was ondemand 100 min 1000 max. SetCPU is set to 100 in standby and this is just too slow and puts the phone completely to sleep.
ive since moved up the phone to 400 min and ive gone a day without any sleeping.
and SetCPU works fine on my phone, and a few friends who have the phone aswell, this was our only problem, and i dont believe it was a problem, its just the way the app is designed, to give full control, leaving the only room for error on our hands..
but still an fyi would be nice lol.. i read the entire huge description of SetCPU, like a half hour read
Try setting the scaling to 'ondemand' or 'performance' if it was set to 'conservative' as default (mine was).
AndyCr15 said:
Okay, that's odd. It's worked this time, although I did nothing different.
coolbho3000, tell me what I need to do to send a logcat and I'll use profile to see if it crashes. For me, profiles are rather important, when the screen is off I want to limit it to like 200mhz or something.
Click to expand...
Click to collapse
Logs can be done by getting the Log Collector app from the Android Market. Or, you can plug it into a computer with ADB and run:
adb logcat
I'm interested in the FC crash and why it works for some and not others.
Thanks
In fact, everything seems to work for me too....
I'm especially interested overclocking this thing, as it's the 45nm ARM CPU released in an Android phone en masse. I might get myself a Vibrant if it gets rooted.
The whole problem is that the default is conservative... changing it will cause phone to freeze.
Sent from my GT-I9000 using XDA App
lgkahn said:
The whole problem is that the default is conservative... changing it will cause phone to freeze.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Then change the Freq Step in Advanced to 100%, should have the same effect as ondemand.
lgkahn said:
The whole problem is that the default is conservative... changing it will cause phone to freeze.
Click to expand...
Click to collapse
Ahh, I was getting the 'not waking' issue that was mentioned before.
coolbho3000 said:
Then change the Freq Step in Advanced to 100%, should have the same effect as ondemand.
Click to expand...
Click to collapse
This will fix it not waking? Is this better than making the minumum to be 400mhz?
When it was not waking, I changed all the minimums to 200mhz, but it was still dropping to 100mhz? Why would it do this?
With my phone rooted didn't work on first install, whenever I launched it, it kept crashing so I uninstalled and installed back and it works perfect
I went through the whole resetting to factory defaults several times until I determined not coming back from sleeping was setcpu.
I do not think it is a crash problem.
I had the scaling set to ondemand.
Do we know what the minimum CPU speed is for the samsung? I had it on 200 and still had a problem. If I have min at 400 is there a point in using setcpu, because the existing OS will scale for us?
I really loved the product, but I need to feel like we have a more confident answer to this problem.
Kudos to coolbho3000 for a great product. For the avoidance of doubt, I purchased the product.
I'm having a lot of trouble with this app too...
So I'm returning it until someone can post some settings that work flawlessly

Two annoying problems on freshly rooted Aria (overclocking/wireless networks related)

Hi.
I just rooted my Aria and everything is going great. I installed an Overclocking widget that has a function to underclock when the screen goes off, but when it comes back on, the phone is so slow that the reset to proper clock speed takes forever - this annoyed me, so I removed the app.
The problem is, it still does it. Is there anywhere I can look to find out where this function resides and remove it so that the phone never changes its clock speed? I know its kind of a weird question. I went into Superuser Permissions and set the Overclock Widget to "DENY" hoping this would stop it, but it keeps it up!
Also, since installing the Liberated_Aria rom, my phone constantly disconnects from Mobile Wireless. If I go into settings and turn MW off and on, it works fine, until the next time the screen shuts off. Any ideas what might cause this? I doubt its related to the ROM, it just started happening around the time I flashed.
Sorry, Im pretty new to this stuff. I will clarify where needed if my explanations sucked.
Your not going to be able to underclock without a kernel that supports it.
Sent from my HTC Liberty using XDA App
ah ok, yeah, sorry, Im pretty new at this stuff and dont know much about it. Either way, it was setting it to 245mhz every time the screen shut off but I fixed it by removing the app, removing the privledges, and installing SetCPU which is maintaining the 600mhz the whole way through.
New question: can the Aria be overclocked? Is there any data available about what the acceptable thresholds are? Id like to get my emulators running a bit better. :O
mmazza said:
ah ok, yeah, sorry, Im pretty new at this stuff and dont know much about it. Either way, it was setting it to 245mhz every time the screen shut off but I fixed it by removing the app, removing the privledges, and installing SetCPU which is maintaining the 600mhz the whole way through.
New question: can the Aria be overclocked? Is there any data available about what the acceptable thresholds are? Id like to get my emulators running a bit better. :O
Click to expand...
Click to collapse
still need a kernel which supports clocking. doesnt exist yet for the aria/liberty
Doesn't the aria throttle itself anyways? I remember reading that it runs at ~480mhz when idle.
Sent from my HTC Liberty using XDA App
pcruz said:
Doesn't the aria throttle itself anyways? I remember reading that it runs at ~480mhz when idle.
Sent from my HTC Liberty using XDA App
Click to expand...
Click to collapse
yeah but he was trying to run it lower than 480.... which can still be done. just need a kernel.

Vibrant turns off in sleep mode

Hey evweryone,
Found a VERY strange issue, that seems to be affecting Captivate users as well. This is my second phone that has had this issue, so its not isolated.
The phone works fine when using it, but when it goes to sleep, occasionally (more and more frequently it seems) it will actually turns off. Meaning, when I pull the phone out of my pocket, its off. Has occurred 3 times today, and I'm SURE i didn't accidentally hold the power key.
First, I thought it was the OC kernel, so I reverted to JAC's non-OC kernel, still turns off. Reverted to stock kernel, still happens. I have a slight hunch maybe SetCPU may be causing it to sleep incorrectly, so I un-installed that.
Anyone else run into this issue? Its a PITA when your phone randomly turns off, cant rely on it at all. Thanks!
EDIT: Phone was ON while sitting on my desk while I was writing this, tried to wake it up....it was off
It happened to me too, and I believe it was because of Set CPU, I had it set low when it went into sleep mode and it would shut down, and i would need to remove battery and start it up again. So I just deleted the profile and it seems fine now.
Puushiki said:
It happened to me too, and I believe it was because of Set CPU, I had it set low when it went into sleep mode and it would shut down, and i would need to remove battery and start it up again. So I just deleted the profile and it seems fine now.
Click to expand...
Click to collapse
I will try that and see. Anyone else have this issue on any Galaxy S based device (Captivate, Vibrant or Generic Galaxy-S)?
Oh btw, I have the Samsung Vibrant
Puushiki said:
Oh btw, I have the Samsung Vibrant
Click to expand...
Click to collapse
Okay, confirmed by one user. There is a large number of captivate users having this same issue, and a discussion about it in a SetCPU forum (Link ).
No problems here, stock ROM + RyanZA using SetCPU since day one.
Two profiles: conversative
Battery <100%: 400 min; 1000 max
screen off: 400min; 400 max
Are you guys using SetCPU for OC'ing, or for scheduling?
I was having the same issue, wasn't sure what it was and was going to return my Vibrant, and with that in mind had wiped the phone and gone back to stock. Due to a delay in getting to the store, I did re-install things (hey, I do need my phone) and found that the issue had stopped. I did have SetCPU on originally and have not re-installed it, but it's difficult to recall if I had SetCPU on before or after the issue started. I suspected it could have been SetCPU and since I didn't really feel the need to use it, I just didn't bother to install and and wanted to see what would happen.
It did happen again yesterday, but the phone seemed to just lock up on me while I was using it (was as I was using Navigate, got to my destination, locked up, then shut off, more or less), so it might have just been another fluke due to overheating or something.
Anyway, the problem that I had was that I couldn't get the phone to come back on without having to remove and replace the battery. But fortunately, other than yesterday, the issue has not happened since the past Friday (where it happened 4 times that morning vs once per day the 3-4 days prior). The inability to turn it back on might just be an issue with my phone (and it only happens after this force shut down).
ytj87 said:
Are you guys using SetCPU for OC'ing, or for scheduling?
Click to expand...
Click to collapse
Mainly for stress testing, as the OC kernel doesnt need to be configured to OC, its already running at 100/1200. Mainly for scheduling and stress testing. Occasionally for detailed info about CPU (temp, current speed, etc). Hopefully this issue\bug can get worked out, cause SetCPU is a GREAT app.
I can almost guaruntee that it is SetCPU causing the issue. Make sure it is set to "Conservative" mode and try not to use the "Screen Off" profile.
hockeyrcks9901 said:
I can almost guaruntee that it is SetCPU causing the issue. Make sure it is set to "Conservative" mode and try not to use the "Screen Off" profile.
Click to expand...
Click to collapse
Had NO issues today, seems SetCPU was the culprit. Thanks!
Well I have SetCPU for Screen Off Conservative at 400, and haven't had a problem yet, so I'm not sure
Puushiki said:
Well I have SetCPU for Screen Off Conservative at 400, and haven't had a problem yet, so I'm not sure
Click to expand...
Click to collapse
I think it's kind of hit or miss. Some people have no issues with it and others do. My first phone would not wake from sleep if I was using the "Screen Off" profile. I haven't tried with my second phone as I've noticed it seems to be really good at lowering **** speed on it's own.
I have had the same problem and am using SetCPU. I love it, but this shutting down in sleep mode thing is driving me crazy. Gonna try to turn off notifications and move to conservative and will report what happens.
I use SetCPU regularly on my Captivate and only see issues if I change the governor or polling interval, or if I use profiles.
Sent from my SAMSUNG-SGH-I897 using XDA App
hockeyrcks9901 said:
I think it's kind of hit or miss. Some people have no issues with it and others do. My first phone would not wake from sleep if I was using the "Screen Off" profile. I haven't tried with my second phone as I've noticed it seems to be really good at lowering **** speed on it's own.
Click to expand...
Click to collapse
**** speed aye?
Don't use setcpu!!!!
Sent from my SGH-T959 using XDA App
xaisomboun said:
**** speed aye?
Click to expand...
Click to collapse
lol. That's swype for ya...
Typos and other gibberish courtesy of Swype
I have this problem several times a week. The phone is NOT rooted. What are my options for curing this problem besides rooting?
Thanks for the help.
Samsung Vibrant, Android 2.1, T-Mobile
I read somewhere that Galaxy S users should NOT use conservative and use on demand instead for this reason... not sure though.

[Q] Screen not turning on

Hi,
I have this annoying problem regarding waking up my device when its locked. Normally i should press the power button, or the trackpad as im running virtuous rom, and the screen should give me the lock screen. But this does not happen, intead screen stays black, the keys on the bottom do light up, and it registers my touches on the screen as i can put the music player on again.
This is happening for quite some time, but lately its more often and its really frustrating me because i have to hit the power button for like 10 times in a row before it finally goes on again.
When it stays black and i put it off again, touching the power button, moste of the times the screen will flash the lockscreen and go black again.
Ive tried to find a sort of system in it, like a period of time or somthing like that, but it seems as if its completely arbirtrary when it happens and when it doesnt.. Only thing i remarked was that when it's off for a longer time, it will have more chance of getting on the first time then when its off for a shorter period...
Any suggestions to fix this evil thing?
cheers
This is a very comman problem.
what you need to do is setting up a screen off profile on setCPU
min 245
max 368
scalling : powersave
I agree check your screen off profiles. Also try not to oc too high. You might also want to install the pershoot kernel if you haven't already. I had this issue when I fist installed the virtuous rom & switching kernels and tweaking my cpu profiles resolved this issue.
Sent from my HTC Vision using XDA App
Screen off profile doesnt help, What does work is less oc'ing it... stupid thing is i can only oc to 902 mhz for the screen to turn on all the time... Thats like not oc'ing it at all ><... I'm on the virtuous kernel now, will try the pershoots in a min, i'll keep you updated
Oh sorry, screen off profile does help, didnt enable profiles in a whole ... pershoot kernel helps a lot, with that one and the screen off profiles, i can oc to 1517 and even then its just not going on very rarely... thanks for the help... Only thing thats regrettable is that the pershoot kernel does not have the smartass governor ...
EDIT: I realised i didnt enable the profiles while using the virtuous kernel either, so i installed that one again and guess what, it works!! Every single time i hit that power switch it goes on like it should... what a relieve thx guys
grtz

Screen issues

Is there anything I can get for the screen to work at all times? Sometimes the screen wont respond to my touch and its annoying...Is there anything to fix this?
Pivo187 said:
Is there anything I can get for the screen to work at all times? Sometimes the screen wont respond to my touch and its annoying...Is there anything to fix this?
Click to expand...
Click to collapse
Do you notice this at any specific times? Not necessarily times of the day, but after using a specific app, before using one, when turning the on screen, etc?
No it actually happend after a reboot...it happens often maybe its the ROM?
I had this problem, but it was due to the fact that I had SetCPU running and set my screen off profile to 128Mhz. So obviously, when I would turn on my phone, the screen would turn on after a small delay. I since bumped it up.
spyd312 said:
I had this problem, but it was due to the fact that I had SetCPU running and set my screen off profile to 128Mhz. So obviously, when I would turn on my phone, the screen would turn on after a small delay. I since bumped it up.
Click to expand...
Click to collapse
Yeah this could definitely be it. You generally don't want to run the Evo below 245.
Sent from my PC36100 using xda premium
Where is the screen off section? I am on ISC mode 7...phone seems a little laggy & still doesnt respond at times when touching the screen... I just installed the savage zen kernel 2.2.1 CFS HAVS+ running smartass governor & seem to be getting better battery life over the stock kernel.

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