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<body><span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Can't turn on laptop screen without changing its resolution first"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70406">bug 70406</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>NEW
</td>
<td>RESOLVED
</td>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Can't turn on laptop screen without changing its resolution first"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70406#c28">Comment # 28</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Can't turn on laptop screen without changing its resolution first"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70406">bug 70406</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>The bug with bare X should be fixed by
commit 41b6b792d8e9c84c0a71a4bd7600e1c42e86b5bd
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Tue Oct 15 11:23:19 2013 +0100
sna: Preserve the user backlight value for get_property calls
When querying the current backlight value, be sure not to overwrite the
last user set value by the call to RRChangeOutputProperty.
RRChangeOutputProperty calls into set_backlight_property, tricking us
into believing that the user has set a new backlight value. The result
is that we end up believing that the user chooses a 0 backlight if she
should happen to query the property whilst the output is disabled.
Reported-by: <a href="mailto:reztho@archlinux.us">reztho@archlinux.us</a>
Bugzilla: <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Can't turn on laptop screen without changing its resolution first"
href="show_bug.cgi?id=70406">https://bugs.freedesktop.org/show_bug.cgi?id=70406</a>
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
and it is credible that this also fixes the rogue zero backlight with desktop
environments as well.</pre>
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