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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 --- - [BYT]igt/kms_universal_plane/universal-plane-pipe-A-functional causes system hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81483">81483</a>
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</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BYT]igt/kms_universal_plane/universal-plane-pipe-A-functional causes system hang
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jinxianx.guo@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr></table>
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<pre>==System Environment==
--------------------------
Regression: only failed on -nightly
Non-working platforms: BYT
==kernel==
--------------------------
origin/drm-intel-nightly: e61f0f00aae3bde8be33766c1b19219ef3a2c708(fails)
drm-intel-nightly: 2014y-07m-17d-14h-33m-56s integration manifest
origin/drm-intel-next-queued: 7c908fe2cad0c11c509ad9d01e8dce3fa86af85a(skips)
drm/i915: extract and improve gen8_irq_power_well_post_enable
origin/drm-intel-fixes: c6930992948adf0f8fc1f6ff1da51c5002a2cf95(skips)
Revert "drm/i915: reverse dp link param selection, prefer fast over wide
again"
origin/drm-fixes: bf38b025d3f58f4c1273714ff1be5bfbf99574a4
Merge branch 'drm-fixes-3.16' of git://people.freedesktop.org/~agd5f/linux
into drm-fixes
origin/drm-next: 62eb3e20f8f3ca9de4a17f87effe534d6a691176（unable to exit）
drm/tilcdc: Fix build breakage
==Bug detailed description==
igt/kms_universal_plane/universal-plane-pipe-A-functional causes system hang
Because system hangs, dmesg unable to catch.
Output:
root@x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# time
./kms_universal_plane --run-subtest universal-plane-pipe-A-functional
IGT-Version: 1.7-g428060c (x86_64) (Linux:
3.16.0-rc5_drm-intel-nightly_f326cd_20140717+ x86_64)
Testing connector eDP-1 using pipe A
==Reproduce steps==
----------------------------
1. ./kms_universal_plane --run-subtest universal-plane-pipe-A-functional</pre>
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