When i boot my linux kernel through efi the radeonhd driver results in a fancy colored picture. the same kernel booted through csm and the driver works correctly.
Created attachment 12883 [details]
Does it look like in bug #13474 or #13477?
No. Not even similar. It looks more like fading colors. On your picture you can even recognize fonts and windows. on my screen only fance, funky, fading colors.
We've exchanged some emails regarding your system. One problem seems to be that due to the lack of a BIOS image the panel doesn't get set correctly.
Have you tried to reproduce the problem on an external display attached to the macbook?
Hrm, where is the NEEDINFO state?
Created attachment 14271 [details]
logverbose 7 with efi and external monitor
Created attachment 14272 [details]
efi + external monitor corruption
Created attachment 14273 [details]
logverbose 7 with csm and external monitor
I've added a patch that should fix ddc for panels on mac books. Could you please tretest?
Does this issue occur with the preferred ati driver (xf86-vide-ati)? If so, please move this to the Driver/Radeon component.
Development of radeonhd has pretty much halted and development focus is on the ati driver. Please see http://www.x.org/wiki/radeonhd
If the issue does not exist in the ati driver (or if there is no response to this message), this bug will be closed as WONTFIX unless someone contributes a patch.
Closing due to lack of response. Please reopen and move to the Driver/Radeon
component if this issue persists with xf86-video-ati