Comment 9 for bug 38500

I have to reopen this bug. If laptop-detect (inside /etc/init/vbesave) fails to detect a laptop (for instance because of bug #40503), the vbestate is not saved.

In resume.d/17-video-restore.sh the vbestate is unconditionally restored. I guess the command will just fail if the $VBESTATE file does not exist. Anyway, it would be better to check if the file exist before carrying on.

suspend.d/80-video-vesa-state.sh also takes for granted that the file was saved at boot.

I guess this kicks in only in the case where SAVE_VBE_STATE has been set to true _and_ laptop-detect fails. Maybe SAVE_VBE_STATE should be disabled somehow if laptop-detect fails.

Since laptop-detect is broken on my laptop, I put "LAPTOP=true" in /etc/default/acpi-support, and this seems to have fixed the display corruption I had at resume from hibernation.