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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [bug] gst-vaapi playback no longer functional in v1.2.91"
href="https://bugs.freedesktop.org/show_bug.cgi?id=69738">69738</a>
</td>
</tr>
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<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[bug] gst-vaapi playback no longer functional in v1.2.91
</td>
</tr>
<tr>
<th>Severity</th>
<td>critical
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>joe.konno@linux.intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>weston
</td>
</tr>
<tr>
<th>Product</th>
<td>Wayland
</td>
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<pre>gst-vaapi playback under Wayland/Weston 1.2.91 is no longer functional.
Playback can occur for seconds, but then hangs on a frame. At that point, dmesg
reports "*ERROR* stuck on render ring". From that point on, the display becomes
unresponsive and system becomes highly volatile, requiring a hard power-down of
the unit (soft reboot and soft shutdown inoperative).
#To Reproduce
1. Launch Weston
weston-launch -- -i0
2. Play a hardware-accelerated video through VA-API
gst-launch-1.0 filesrc \
location=$HOME/Videos/big_buck_bunny_1080p_h264.mp4 ! \
qtdemux ! \
vaapidecode ! \
vaapisink fullscreen=true
#Expected Result
Video plays from beginning to end smoothly without issue.
#Actual Result
Video hangs seconds after playback begins, and enters an unrecoverable error
state.
dmesg emits:
[drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
Display hangs on last displayed frame. VT-switching, input devices, and display
in general unresponsive and useless. `shutdown` commands issued over ssh appear
inoperative.
Only known recovery method is to power down the hardware.
#Workaround
Append kernel boot parameter: i915.i915_enable_rc6=0
This kernel boot parameter allows playback to continue, though it is not a
permanent solution.
#Configuration
Hardware: "Sandybridge" era CPU with integrated graphics, Celeron SKU
OS: Fedora 19 64-bit
Kernel: 3.11.1-200.fc19
wayland (HEAD) 1.2.91-0-g4125367
mesa (HEAD) mesa-9.2-0-g46273ba
cairo (HEAD) 1.12.16-0-g8e11a42
weston (HEAD) 1.2.91-0-g7799385
libva (HEAD) libva-1.2.1-0-g88ed1eb
intel-driver (HEAD) 1.2.1-0-g8f306e3
gstreamer (HEAD) 1.0.9-0-gf3c4f74
gst-plugins-base (HEAD) 1.0.9-0-gffc5262
gst-plugins-good (HEAD) 1.0.9-0-gff2598f
gst-plugins-bad (HEAD) 1.0.9-0-g7ba6694
gst-ffmpeg (HEAD) 1.0.9-0-gd1c488b
gstreamer (HEAD) 1.0.9-0-gf3c4f74
gst-plugins-base (HEAD) 1.0.9-0-gffc5262
gst-plugins-good (HEAD) 1.0.9-0-gff2598f
gst-plugins-bad (HEAD) 1.0.9-0-g7ba6694
gst-ffmpeg (HEAD) 1.0.9-0-gd1c488b
gstreamer-vaapi (HEAD) tags/0.5.6-0-g0687224
#Related Bugs
Perhaps <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [bug] LibVA record causes Weston to lock"
href="show_bug.cgi?id=69330">bug #69330</a> ?</pre>
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