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<body><span class="vcard"><a class="email" href="mailto:direx@betriebsdirektor.de" title="Direx <direx@betriebsdirektor.de>"> <span class="fn">Direx</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)"
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;">Status</td>
<td>NEEDINFO
</td>
<td>NEW
</td>
</tr>
<tr>
<td style="text-align:right;">Assignee</td>
<td>imre.deak@intel.com
</td>
<td>direx@betriebsdirektor.de
</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)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96419#c4">Comment # 4</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)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96419">bug 96419</a>
from <span class="vcard"><a class="email" href="mailto:direx@betriebsdirektor.de" title="Direx <direx@betriebsdirektor.de>"> <span class="fn">Direx</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=124574" name="attach_124574" title="dmesg with drm.debug=14">attachment 124574</a> <a href="attachment.cgi?id=124574&action=edit" title="dmesg with drm.debug=14">[details]</a></span>
dmesg with drm.debug=14
I have attached a dmesg, but unfortunately I was not able to reproduce the
issue, although I am still using the same kernel. The first time the message
appeared was when I tried out the KDE desktop (maybe OpenGL 3.0 desktop
effects?).
I also ran the IGT tests, but this particular error did not appear (many others
did, though).
Notes:
- I got two other traces instead this time (should I open a new bug for this?)
- I am getting the usual "FIFO underrun" errors, which cause flickering. You
should already be aware of those errors (<a class="bz_bug_link
bz_status_NEW "
title="NEW - Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)"
href="show_bug.cgi?id=94605">Bug 94605</a>, <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [BSW] FIFO underrun before trying to issue a GPU reset"
href="show_bug.cgi?id=94597">Bug 94597</a>, ...)</pre>
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