https://bugs.freedesktop.org/show_bug.cgi?id=76558 --- Comment #3 from Fabio Pedretti --- Created attachment 99497 --> https://bugs.freedesktop.org/attachment.cgi?id=99497&action=edit dmesg after the lockup with kernel 3.13.0-24.47, got switching to a VT Here is an updated dmesg with kernel 3.13.9 (ubuntu 3.13.0-24.47), only relevant difference is "on ring 0" is added to this line: [11757.716140] radeon 0000:01:00.0: GPU lockup (waiting for 0x000000000003dd41 last fence id 0x000000000003dd40 on ring 0) -- You are receiving this mail because: You are the assignee for the bug.