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<body><span class="vcard"><a class="email" href="mailto:li.l.xu@intel.com" title="Li Xu <li.l.xu@intel.com>"> <span class="fn">Li Xu</span></a>
</span> changed
<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [SGB bisected]DP can't light up after rotation and unplug"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86237">bug 86237</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>ASSIGNED
</td>
</tr>
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<td style="text-align:right;">Summary</td>
<td>[SGB]DP can't light up after rotation and unplug
</td>
<td>[SGB bisected]DP can't light up after rotation and unplug
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [SGB bisected]DP can't light up after rotation and unplug"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86237#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [SGB bisected]DP can't light up after rotation and unplug"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86237">bug 86237</a>
from <span class="vcard"><a class="email" href="mailto:li.l.xu@intel.com" title="Li Xu <li.l.xu@intel.com>"> <span class="fn">Li Xu</span></a>
</span></b>
<pre>bisect result:
first bad commit:
commit 0e32b39ceed665bfa4a77a4bc307b6652b991632
Author: Dave Airlie <<a href="mailto:airlied@redhat.com">airlied@redhat.com</a>>
Date: Fri May 2 14:02:48 2014 +1000
drm/i915: add DP 1.2 MST support (v0.7)
This adds DP 1.2 MST support on Haswell systems.
Notes:
a) this reworks irq handling for DP MST ports, so that we can
avoid the mode config locking in the current hpd handlers, as
we need to process up/down msgs at a better time.
Changes since v0.1:
use PORT_PCH_HOTPLUG to detect short vs long pulses
add a workqueue to deal with digital events as they can get blocked on the
main workqueue beyong mode_config mutex
fix a bunch of modeset checker warnings
acks irqs in the driver
cleanup the MST encoders</pre>
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