Bug#494053: xserver-xorg-core: Lock up with: 'mieqEnequeue: out-of-order valuator event; dropping.'

[Michel Dänzer <daenzer@debian.org>]

On Thu, 2008-08-07 at 01:02 +0200, Frans Pop wrote:
> 
> On possibly interesting thing about the lockup. When I noticed it the
> monitor was in powersave mode (i.e. black), but I could hear from the
> noise of the system's fan that screensaver was still running.
> Normally the screensaver will stop when DPMS powersave is activated.

Maybe the screensaver (or X server) was spinning due to the lockup.


> I found the following reports for the same issue: #462590, #462127.
> As I'm using the intel driver, this would be the third affected driver.
> Isn't it more logical to start suspecting core code rather than drivers?

No, the core code is rock solid in other setups. GPU lockups are usually
caused by bugs in the 3D, 2D or DRM drivers (or rarely even hardware
glitches). The problem is that the number of possible causes is
basically unlimited, and they all result in similar symptoms, which
usually don't allow determining the cause.


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