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<body><span class="vcard"><a class="email" href="mailto:n7u4722r35@ynzlx.anonbox.net" title="Mark Spencer <n7u4722r35@ynzlx.anonbox.net>"> <span class="fn">Mark Spencer</span></a>
</span> changed
<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - i915 always chooses the alternate fixed display mode on the eDP"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105469">bug 105469</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>CLOSED
</td>
<td>REOPENED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>WORKSFORME
</td>
<td>---
</td>
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - i915 always chooses the alternate fixed display mode on the eDP"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105469#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - i915 always chooses the alternate fixed display mode on the eDP"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105469">bug 105469</a>
from <span class="vcard"><a class="email" href="mailto:n7u4722r35@ynzlx.anonbox.net" title="Mark Spencer <n7u4722r35@ynzlx.anonbox.net>"> <span class="fn">Mark Spencer</span></a>
</span></b>
<pre>Yes, it still occurs:
$ uname -a
Linux 4.17.0-rc2
$ glxgears
249 frames in 5.0 seconds = 49.732 FPS
241 frames in 5.0 seconds = 48.033 FPS
241 frames in 5.0 seconds = 48.034 FPS
241 frames in 5.0 seconds = 48.033 FPS
216 frames in 5.0 seconds = 43.100 FPS
241 frames in 5.0 seconds = 48.033 FPS
Main discussion is here: <a class="bz_bug_link
bz_status_CLOSED bz_closed"
title="CLOSED WORKSFORME - Inverted touchpad coasting possibly caused by desktop effects"
href="show_bug.cgi?id=103497">https://bugs.freedesktop.org/show_bug.cgi?id=103497</a>
To sum up:
It's regression
It occurs since Linux 4.14
It's bisected to dc911f5bd8aacfcf8aabd5c26c88e04c837a938e (drm/i915/edp: Allow
alternate fixed mode for eDP if available.)
It can be fixed either by adding
<a href="https://bugs.freedesktop.org/attachment.cgi?id=135277">https://bugs.freedesktop.org/attachment.cgi?id=135277</a> or reverting bisected
commit.
It's sad that having all of the above doesn't result in any action from
upstream developers for a half year.</pre>
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