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<body><span class="vcard"><a class="email" href="mailto:yann.argotti@intel.com" title="yann <yann.argotti@intel.com>"> <span class="fn">yann</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL/APL] vblank not available on crtc 0, ret=-22 (makes X freeze on SKL)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96419">bug 96419</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Assignee</td>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
<td>matthew.d.roper@intel.com
</td>
</tr>
<tr>
<td style="text-align:right;">Priority</td>
<td>medium
</td>
<td>highest
</td>
</tr>
<tr>
<td style="text-align:right;">Summary</td>
<td>[SKL] vblank not available on crtc 0, ret=-22 (makes X freeze)
</td>
<td>[SKL/APL] vblank not available on crtc 0, ret=-22 (makes X freeze on SKL)
</td>
</tr>
<tr>
<td style="text-align:right;">i915 features</td>
<td>
</td>
<td>watermark
</td>
</tr>
<tr>
<td style="text-align:right;">i915 platform</td>
<td>
</td>
<td>BXT
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL/APL] vblank not available on crtc 0, ret=-22 (makes X freeze on SKL)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96419#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL/APL] vblank not available on crtc 0, ret=-22 (makes X freeze on SKL)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96419">bug 96419</a>
from <span class="vcard"><a class="email" href="mailto:yann.argotti@intel.com" title="yann <yann.argotti@intel.com>"> <span class="fn">yann</span></a>
</span></b>
<pre>Looking at the logs for APL (from <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BSW/SKL/HSW] igt / kms_rotation_crc subcases fail"
href="show_bug.cgi?id=86767">bug 86767</a>), I am noticing that this looks
like same root cause than also for <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [IGT] [BXT-P/BDW] some kms_flip subtest fail due to [i915]] *ERROR* too many voltage retries, give up"
href="show_bug.cgi?id=96229">bug 96229</a> (checked logs on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BSW/SKL/HSW] igt / kms_rotation_crc subcases fail"
href="show_bug.cgi?id=86767">bug 86767</a> and bug
96229)
=> vblank not available on crtc 0, ret=-22
which btw appeared in <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - drm_wait_one_vblank warnings"
href="show_bug.cgi?id=89108">bug 89108</a> and was fixed on previous platforms with
commit f9b61ff6bce9a44555324b29e593fdffc9a115bc
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date: Wed Jan 7 13:54:39 2015 +0100
drm/i915: Push vblank enable/disable past encoder->enable/disable
now is back.
We encountered that issue running some kms_rotation_crc igt subtests or some
kms_flip subtests</pre>
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