I have a tricky problem with power management. I suspect there’s no solution that will be satisfactory, but I’m posting in hopes that I’m wrong.
Here’s the scenario: The PC is a Toshiba laptop model# x205-s9359 running 11.2, KDE 4.3.5. Its video card is an nVidia 8700 GT.
For two years now I’ve been plagued by random flashes, flickers and even missing scan lines on my screen when I use the nVidia drivers (up to and including 195.36.15), so lately I’ve been using the nv drivers. I miss the effects, etc. but I can live with that. At least I can get my work done, even if the display isn’t as fancy as I’d like.
Here’s the problem:
When I run the nv drivers I can’t suspend the PC to RAM or Disk. This means a lot of wasted time waiting for the machine to shut down and reboot every time I leave my desk for any length of time.
If I try to suspend to RAM the only thing that happens is that the network connection disconnects then reconnects immediately. Here’s the log file.
If I try to suspend to Disk the PC appears to suspend as expected, but when it resumes it hangs before restarting X, and there’s no keyboard or power button response. I have to use alt-prtsc-reisub to reboot. When the reboot is complete the screen shows all the windows, etc that were present before the suspend. Here’s that log file.
When I run the nVidia drivers the suspend/resume functions work perfectly, but I have to put up with all the problems described above. Here’s the log file for Suspend to RAM with nVidia, and here’s the one for Suspend to Disk.
I’ve spent hours searching for clues in these forums, on the openSUSE.org site in general, at KDE.org and with Google and I’m sorry to say that most of I’ve found is horribly out of date, and/or it’s way over my head. or (worst of all) not even dated, so I’ve no idea whether it’s current info relevant to my situation or so out of date that I might do real harm if I were to trust it. (RANT: Is it too hard to put a date on an article?.. end of RANT)
I’d be quite content to use the nv drivers if I could solve the power management issues, but I’d be equally happy to solve the flickering etc. with nVidia drivers. Anybody got a suggestion?