https://bugs.freedesktop.org/show_bug.cgi?id=38554
--- Comment #2 from manuel.jander@gmail.com 2012-09-20 18:22:11 UTC --- Hi,
I own A IBM Thinkpad X31, AFAIK the video controller is the same (ATI RV100 LY [Mobility Radeon 7000]). Since KMS, I have to disable it in order to be able to use hibernation (you really want that on a laptop).
- radeon.modeset=0
Everything works, except the text console is garbled. Each character is filled with vertical lines, and seems to occupy a rectanlge a little bit bigger than usual.
- radeon.modeset=0 load radeonfb while Xorg is running and active
The text console is OK, because it switches to FrameBuffer, hiding the corrupt text console. Hibernate works also.
- radeon.modeset=1 thus radeonfb is loaded before Xorg starts
When I try to hibernate either using pm-hibernate or s2disk with any quirk option I get a black screen and nothing else happens.
I have some driver writing experience, so if somebody can a least give me some pointers to look at, that would be great.