i830MG and suspend to disk with X.

[Tobias Roth]

> With XFree86-Server-4.3.0_8 under -STABLE I'm having problems with
> suspend to disk with an i830MG graphics card in my IBM X30 if it is
> running X at the time. Display comes back corrupted, only way to
> recover is a reboot (switching to a virtual terminal, which is also
> corrupted, and hitting control-alt-delete if it is enabled works for
> me). I've just updated the system bios to the release from June and
> there is no improvement. A workaround is the traditional switch to a
> virtual terminal first, switch back after resume.
> 
> I'm also seeing occasional crashes on resume from suspend to memory,
> they seem to be far more frequent than they used to be :/

here my experiences on -current with a T30: as long as the ultrabay
cd-rom device is not in the bay, i can suspend/resume all right.

with the ultrabay cd-rom drive inserted, the system crashes on resume.

these statements are equally true for hibernation and suspend.

i am also using the vty switch workaround, which can be automated, as
i stated here:

http://gerda.univie.ac.at/freebsd-laptops/index.pl?action=show_laptop_comment&commentid=43&laptop=103


hope that helps, t.