Bug#783281: xserver-xorg-video-radeon: cant resume after sleep

[Michel Dänzer <michel@daenzer.net>]

On 25.04.2015 11:42, Prekates Alexandros wrote:
> Package: xserver-xorg-video-radeon
> Version: 1:7.5.0-1
> Severity: important
> 
> 
> My debian 8 + xfce system when screen turns black (propably saving power)
> becomes unresponsive to mouse and keybrd events.
> 
> I press the cases' power button  and after seens some lines pulsating in a
> black background i get the message:
> 
> [drm;770_stop_dpm] "ERROR' Could not force DPM to low.
> ata1.00: revalidation failed (errno=5)

Are you sure the problem is because of the graphics driver, not e.g.
related to the ATA error? E.g. have you tried suspend/resume with the
radeon kernel driver disabled via something like radeon.modeset=0 on the
kernel command line?


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer