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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - i815: GPU hangs in v4.6 on CHT"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95467">95467</a>
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<th>Summary</th>
<td>i815: GPU hangs in v4.6 on CHT
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>XOrg git
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>DRM/Intel
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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</tr>
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<th>Reporter</th>
<td>pierre-louis.bossart@linux.intel.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=123857" name="attach_123857" title="dmesg log for first test">attachment 123857</a> <a href="attachment.cgi?id=123857&action=edit" title="dmesg log for first test">[details]</a></span>
dmesg log for first test
V4.5 works fine on CHT (Tronsmart Ara X5 Plus)
V4.6 is broken, UI is frozen in less than 20 seconds when moving windows
around.
the drm-intel-nightly works fine, apparently due to this commit:
commit a5e485a95c9c4cdd93b4c6dc53eee3bd1e50de11
Author: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>>
Date: Wed Apr 13 21:19:51 2016 +0300
drm/i915: Clear VLV_IER around irq processing
Attached results of 2 tests which show similar behavior.</pre>
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