Bug#699639: xserver-xorg-video-radeon: Display freezes with shared keyboard, mouse and monitors

Michel Dänzer daenzer at debian.org
Mon Feb 4 02:31:11 PST 2013

On Sam, 2013-02-02 at 19:15 +0000, Tony Houghton wrote: 
> I share the keyboard, mouse and one of two monitors between this PC and
> another one running Windows. The input devices are switched with a cheap
> USB KVM and the monitors with their own controls because they have HDMI
> and DVI inputs. The primary screen is always set to this PC, only the
> secondary one is switched to the other PC.
> Sometimes X crashes, leaving the picture frozen indefinitely.

The information included with your report does not show an X server
crash. Are you sure it crashes and doesn't 'just' freeze?

> The display remains unusable when I try to switch to a VT, but I can log in
> with ssh.

When logged in via SSH, can you check if the X server process is still
alive? If it is, can you try running something like 'DISPLAY=:0
xdpyinfo' to see if it's still processing client requests?

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

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