I'd like to use Suspend-to-Disk on one of my computers. The normal openSUSE methods (tested: KDE start menu and "powersave -U") do not work as expected. The computer suspends and switches off, but after switch-on I see, that the kernel does not find a valid hibernation image:
$ dmesg [...] [ 3.884656] PM: Starting manual resume from disk [ 3.884659] PM: Hibernation image partition 8:3 present [ 3.884659] PM: Looking for hibernation image. [ 3.884809] PM: Image not found (code -22) [ 3.884809] PM: Hibernation image not present or could not be loaded. [...]
After some debugging with /usr/src/linux-*/Documentation/power/basic-pm-debugging.txt I found that the following method
# echo platform > /sys/power/disk # echo disk > /sys/power/state
Debugging with http://en.opensuse.org/SDB:Suspend_to_disk was not successful. I am not sure, but I believe, that problems in my setup are caused by s2disk.
My question: Is it possible to configure openSUSE so, that the working method ("echo disk > /sys/power/state", see above) is used in KDE and maybe in "powersave -U" instead of the other method (s2disk)?