Video scrambled after wake from sleep

[bobthesane]

This is an older laptop, an Acer Aspire 5100, with 2GB of memory and the ATI Radeon 200M. Everything about Karmic runs fantastic on this laptop. With the exception of going into sleep mode. That's save to RAM, not save to disk. Hibernate (save to disk) runs great.

However, when I wake it back up from sleep, the screen is completely scrambled, flickering randomly all over, lots of psychedelic effects... If I was a hippy I'd probably drop LSD and stop complaining. However, be that as it may, I have to force a shutdown with the power button to get things back to normal.

What is odd to me, is that the console messages during the shutdown (ie. after the X server is down) are also scrambled, which leads me to believe that this is a hardware related issue and not software.

Any thoughts? Everything comes back to normal after a reboot, and it works after a hibernate signal. This only happens on Sleep.

I have attempted a number of different settings involving the xscreensaver screen lock, s2ram, etc. but nothing has had any effect.

Any help would be appreciated at this point. Thanks guys.

[MoonRise]

Re: Video scrambled after wake from sleep

See if this may help. I had early issues and this is what I did and haven't had issues since.

http://kubuntuforums.net/forums/inde...2640#msg202640

[bobthesane]

Re: Video scrambled after wake from sleep

No dice, unfortunately. I've tried tuxonice, uswsusp, and kernel space suspends now. tuxonice at least lets me back onto the desktop in a usable fashion, but it also doesn't actually put the machine to sleep. It just screen locks it with garbled video.

Looking around, I see several bug reports listed for my model and sleep mode, with no fixes. I am going to just have to assume that I'm screwed I think and either hibernate or actually shut down my laptop when transporting it, because everything else works more or less.

[bobthesane]

Re: Video scrambled after wake from sleep

WOOT! Scratch that last, I got it working. Don't know if this will be helpful or not to anyone else, but here's what it took.

You *must* specify kernel in the /etc/pm/config.d/00sleep_module file. I know it's supposed to default to kernel if the sleep module line is commented out. Uncomment it anyway and specify kernel. Then add some tweaks, so the file looks like this:

# The sleep/wake system to use. Valid values are:
# kernel The built-in kernel suspend/resume support.
# Use this if nothing else is supported on your system.
# uswsusp If your system has support for the userspace
# suspend programs (s2ram/s2disk/s2both), then use this.
# tuxonice If your system has support for tuxonice, use this.
#
# The system defaults to "kernel" if this is commented out.
SLEEP_MODULE="kernel"
ADD_PARAMETERS="--quirk-vbe-post --quirk-vbemode-restore --quirk-vbestate-restore"

I am now happily suspending to ram manually and on lid close with the ability to come back to my desktop successfully. Happiness abounds, the people rejoiced, and all was right with the world.

[MoonRise]

Re: Video scrambled after wake from sleep



Great! At least we now have a good chain of this issue and several ways to try and fix it.

Place [SOLVED] in your first entry's Subject line above so everyone will know.

[Snowhog]

Re: Video scrambled after wake from sleep

Well, have to report a 'third' way - close lid, it suspends to RAM, open lid, enter password, have desktop restored. (So without doing anything, it seems to just work here on my Toshiba Satellite P105-S6147)