Ubuntu
xserver-xorg-video-ati package

  1. Bug #1243311
  2. Comment #5

Comment 5 for bug 1243311

Revision history for this message
Rena Kunisaki (i-am-inuyasha) wrote :

Further research: when attempting to place the "top" screen in any other position (left, right, or below other displays), it displays the same noise, but the system doesn't hang. Syslog and kern.log are spammed with a new message:

Oct 22 13:08:28 guilmon kernel: [ 1105.381816] radeon 0000:02:00.0: couldn't schedule ib
Oct 22 13:08:28 guilmon kernel: [ 1105.381824] [drm:radeon_cs_ib_chunk] *ERROR* Failed to schedule IB !