Bug#630532: xorg hangs in screensaver (radeon chipset)

Michel Dänzer daenzer at debian.org
Mon Jul 4 09:23:15 PDT 2011

On Son, 2011-07-03 at 10:46 -0400, Daniel Dickinson wrote: 
> On Tue, 14 Jun 2011 23:40:45 +0200
> Julien Cristau <jcristau at debian.org> wrote:
> > On Tue, Jun 14, 2011 at 17:04:28 -0400, Daniel Dickinson wrote:
> > 
> > > Xorg gets the kernel hung_task_timeout message while in screensaver
> > > at random times.  This usually happens when I've left the computer
> > > to a long job, and means that a forced shutdown is necessary (SysRq
> > > works) and causes (so far recoverable) filesystem issues.
> > > 
> > Is this reproducible with a newer kernel?  With a newer
> > xserver-xorg-video-radeon?  With a newer libgl1-mesa-dri?  Do you know
> > what screensaver triggers it exactly?
> I'll have to try again with .39, the xorg and dri and kernel were at
> the latest versions (and even tried experimental) at the time I
> reported.  Unfortunately I don't know what screensaver (I was finding
> the results when I came back from leaving the computer, with the
> screensaver in random mode, and unfortunately the logs don't record
> the info I need to determine screensaver (is there a way to get
> xscreensaver to log each screensaver it uses?) in use.

Maybe you could try cycling through all screensavers in
xscreensaver-demo, to see if you can reproduce the hang with any of

Earthling Michel Dänzer           |                   http://www.amd.com
Libre software enthusiast         |          Debian, X and DRI developer

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