[Bug 16537] radeon R485 (mobile 200m) gets garbled display when resuming from resume to ram (s3 state)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Jun 3 13:15:00 PDT 2009


--- Comment #31 from Stefan Dalibor <scd at lst.de>  2009-06-03 13:14:59 PST ---
(In reply to comment #28)
> Does setting the radeon drm module option r4xx_atom=1 help?  Also you might
> have better luck with Jerome's kms drm tree:
> http://cgit.freedesktop.org/~glisse/drm-next/log/?h=drm-next-radeon

Thanks for the hint, but the ATOM BIOS option doesn't fix it -- same display
failure and kernel oops after resume.

To clarify the failure: on resume, the display starts fine...I use encrypted
FSs, and get to the password prompt fine. It seems that the bug is triggerd
after userland (the pm-tools wakeup scripts??) take over.
Also, I get the same garbled screen if I boot only to run level 3 w/o X, and
the weirdo stripes look a little bit different when switching between VTs.

Another observation is that the garbled display already shows /before/
hibernation poweroff -- I can see some of the shutdown messages on the text
console, than the display get"s garbled, than the machine pwoers down.

Seems that this really is a KMS-related problem... I'll try to get the patched
version you refer above installed on the weekend.  

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