Ubuntu
xserver-xorg-video-ati package

  1. Bug #141551
  2. Comment #18

Comment 18 for bug 141551

Revision history for this message
Tormod Volden (tormodvolden) wrote : Re: dri lockup on ati (mobility radeon rv350)

You can also try if
 Option "BusType" "PCI"
helps. It would be a better workaround than disabling DRI.