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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - Display hangs after resuming from hibernation"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105196#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - Display hangs after resuming from hibernation"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105196">bug 105196</a>
from <span class="vcard"><a class="email" href="mailto:imre.deak@intel.com" title="Imre Deak <imre.deak@intel.com>"> <span class="fn">Imre Deak</span></a>
</span></b>
<pre>(In reply to amn-bas from <a href="show_bug.cgi?id=105196#c11">comment #11</a>)
<span class="quote">> I updated the mesa driver to the latest version on Archlinux repos 17.3.6
> and now booting with LTS kernel (4.14) resumes without any errors. With 4.15
> I'm still getting a black screen and a bunch of errors. I noticed that with
> 4.15 the screen backlight flashes after resuming something like if I set the
> backlight to 100% then to 30% and it does that for 2-4 times.</span >
Could you provide a full dmesg for the 4.15 boot (booting with drm.debug=0xe
and making sure the dmesg log buffer is big enough to contain the PM:
hibernate/resume sequence too)?
It'd be great if you could also try
the drm-tip branch from git://anongit.freedesktop.org/drm-tip .</pre>
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