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

Michel Dänzer michel at daenzer.net
Mon Apr 27 01:29:51 PDT 2015

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

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