One useful thing to try would be to trace the graphics driver stack to determine what is going on. Please run the following on the latest Ubuntu kernel:
$ sudo sh -c "echo ':mod:i915 :mod:drm :mod:drm_kms_helper check_hung_uninterruptible:traceoff:' > /sys/kernel/debug/tracing/set_ftrace_filter" $ sudo sh -c "echo 1 > /sys/kernel/debug/trace/tracing_enabled" $ sudo sh -c "echo 1 > /sys/kernel/debug/trace/tracing_on" $ sudo sh -c "echo function_graph > /sys/kernel/debug/trace/current_tracer" Wait for the issue to occur, then $ bzip2 -c /sys/kernel/debug/tracing/trace > ftrace.bz2 Finally, attach the trace file to this bug. Thanks -- Hard freeze after upgrading to Lucid https://bugs.launchpad.net/bugs/545039 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
