[Bug 73842] New: Haswell: lock screen disappears temporarily after dmps force off/on (laptop lid close/open)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73842

          Priority: medium
            Bug ID: 73842
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: Haswell: lock screen disappears temporarily after dmps
                    force off/on (laptop lid close/open)
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: uriahheep at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 92478
  --> https://bugs.freedesktop.org/attachment.cgi?id=92478&action=edit
Xorg.0.log

On a MacBook Pro 11,1 (late 2013 13", Intel Haswell / Iris 5100), when acpid
detects lid close/open it'll call xset -display :0 dpms force off or on
(because for some reason the screen doesn't turn off by itself when the lid
closes). Meanwhile, before I close the lid, I manually run i3lock, but when I
open the lid up again the desktop is visible for a fraction of a second, and
then i3lock's blank screen reappears. This does not happen on another of my
machines with a Pineview Intel chip (GMA 3150 I believe). I understand that
this may not be a graphics driver bug at all, however since it only happens on
this Haswell chip it very well might be.

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