Comment 27 for bug 1390016

Created attachment 108334
rc6 disabled in BDW d-step CPU with kernel 3.18-rc1/Xubuntu 14.10 beta

For comment #25 (drm-intel-nightly-10/22),
If disabling rc6 by i915.enable_rc6=0 in drm-intel-nightly-10/22, it only suffered GPU hang at the first time, and worked well at following test cycles. It appears to be related to GPU rc6.

intel@intel-Broadwell-Client-platform:~$ ./play.sh
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstPulseSinkClock
WARNING: from element /GstPlayBin:playbin0/GstBin:vbin/GstBin:bin0/GstXvImageSink:xvimagesink0: A lot of buffers are being dropped.
Additional debug info:
gstbasesink.c(2875): gst_base_sink_is_too_late (): /GstPlayBin:playbin0/GstBin:vbin/GstBin:bin0/GstXvImageSink:xvimagesink0:
There may be a timestamping problem, or this computer is too slow.
WARNING: from element /GstPlayBin:playbin0/GstBin:vbin/GstBin:bin0/GstXvImageSink:xvimagesink0: A lot of buffers are being dropped.
Additional debug info:
gstbasesink.c(2875): gst_base_sink_is_too_late (): /GstPlayBin:playbin0/GstBin:vbin/GstBin:bin0/GstXvImageSink:xvimagesink0:
There may be a timestamping problem, or this computer is too slow.
Got EOS from element "playbin0".
Execution ended after 33048083158 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...
intel@intel-Broadwell-Client-platform:~$ ./play.sh
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstPulseSinkClock
Got EOS from element "playbin0".
Execution ended after 33047536912 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...