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<b><a class="bz_bug_link
bz_status_CLOSED bz_closed"
title="CLOSED NOTOURBUG - Errors on lid close/open, black screen."
href="https://bugs.freedesktop.org/show_bug.cgi?id=93555#c20">Comment # 20</a>
on <a class="bz_bug_link
bz_status_CLOSED bz_closed"
title="CLOSED NOTOURBUG - Errors on lid close/open, black screen."
href="https://bugs.freedesktop.org/show_bug.cgi?id=93555">bug 93555</a>
from <span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span></b>
<pre>(In reply to Bruno Pagani from <a href="show_bug.cgi?id=93555#c19">comment #19</a>)
<span class="quote">> Like I’ve said in <a class="bz_bug_link
bz_status_CLOSED bz_closed"
title="CLOSED NOTOURBUG - Errors on lid close/open, black screen."
href="show_bug.cgi?id=93555#c13">https://bugs.freedesktop.org/show_bug.cgi?id=93555#c13</a>,
> waking up on lid open is fixed.
>
> What remains is:
>
> – a black screen;
> – an additional stale image from login manager when PSR is enabled.
>
> So you would say this is DE dependent? Interesting, I’ll have to look a bit
> more into that.</span >
The kernel driver does not enable the displays on its own upon resume. The
userspace has to ask for it.
<span class="quote">> Regarding backlight, I’ve filed
> <a href="https://bugzilla.kernel.org/show_bug.cgi?id=194675">https://bugzilla.kernel.org/show_bug.cgi?id=194675</a>.</span >
Is it an ACPI backlight you have? What does 'ls /sys/class/backlight' say?</pre>
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