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[Bug 1047427] YaST - Remote Administration (VNC) kills Xserver, drops to root console login prompt when using sddm as displaymanager
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Fri, 07 Jul 2017 12:12:14 +0000
  • Message-id: <bug-1047427-21960-Xdvgbvp2BD@http.bugzilla.opensuse.org/>
http://bugzilla.opensuse.org/show_bug.cgi?id=1047427
http://bugzilla.opensuse.org/show_bug.cgi?id=1047427#c12

Michal Srb <msrb@xxxxxxxx> changed:

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--- Comment #12 from Michal Srb <msrb@xxxxxxxx> ---
(In reply to Fabian Vogt from comment #11)
(In reply to Stefan Dirsch from comment #10)
Ok. So the culprit appears to be sddm. Reassigning.

I'm not sure how the VNC setup without session management is supposed to
work and what sddm needs to support.

Currently sddm maps SIGHUP to quit(), so it just quits on rcxdm reload.

Both VNC with and without session management requires that the display manager
communicates with XDMCP. So when you enable either of those modes in YaST, it
will change the DISPLAYMANAGER_REMOTE_ACCESS to "yes" in
/etc/sysconfig/displaymanager, then it will call the
"/usr/lib/X11/display-manager reload" to reload the configuration, which sends
SIGHUP to the display manager.

By the way, sddm doesn't (yet) support XDMCP, so even if SIGHUP wouldn't kill
it and it would reload the configuration, it would not be useful for VNC.

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