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<body><span class="vcard"><a class="email" href="mailto:rodrigo.vivi@gmail.com" title="Rodrigo Vivi <rodrigo.vivi@gmail.com>"> <span class="fn">Rodrigo Vivi</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - [BYT/BSW] eDP black screen when backlight is set over update_status path"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86504">bug 86504</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEEDINFO
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<td>NEW
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BYT/BSW] eDP black screen when backlight is set over update_status path"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86504#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BYT/BSW] eDP black screen when backlight is set over update_status path"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86504">bug 86504</a>
from <span class="vcard"><a class="email" href="mailto:rodrigo.vivi@gmail.com" title="Rodrigo Vivi <rodrigo.vivi@gmail.com>"> <span class="fn">Rodrigo Vivi</span></a>
</span></b>
<pre>Yes, the issue is the same regardless PSR.
Yes, this sequence works fine.
I also tried
echo 4 > /sys/class/backlight/intel_backlight/bl_power
echo 4 > /sys/class/backlight/intel_backlight/bl_power
echo 0 > /sys/class/backlight/intel_backlight/bl_power
to see if disabling it twice would face the issue but no, everything worked
correctly.
Also I noticed that
echo 0 > /sys/class/backlight/intel_backlight/bl_power
is the only thing that can restore my screen after I hit the issue. So forget
the part of "without any way to recover from it".</pre>
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