[Bug 106199] Cannot get back into DM after logoff (Linux 4.16.2+) - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 106199] Cannot get back into DM after logoff (Linux 4.16.2+)
Date: Tue, 24 Apr 2018 01:16:05 +0000	[thread overview]
Message-ID: <bug-106199-502@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=106199

            Bug ID: 106199
           Summary: Cannot get back into DM after logoff (Linux 4.16.2+)
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: mabo@elbmurf.de

Created attachment 139031
  --> https://bugs.freedesktop.org/attachment.cgi?id=139031&action=edit
LightDM ant soccer

Starting with Linux 4.16.2, when I logoff from KDE Plasma, I don’t get back
into SDDM (just a black screen) or back into LightDM (wild random blocky
screen, see attachment).
I have a RX 580, DC is on. Same result on Linux 4.17rc2. Distro is
Antergos/Arch. Monitor is connected via DP.
Using SDDM, I can press ctrl + alt + F1 etc. to theoretically get to a tty
prompt but the screen does stay black. But then, after pressing ctrl + alt +
del numerous times, at least my system does a proper reboot. In LightDM, this
does not work and I have to use the reset button. Worked with Linux 4.16.1
before.

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