Public bug reported:
I turned off my screen for a few hours then turned it on again and my
session was no longer there and i had to login again.
The following lines from syslog at the time that i turned on the screen
again look suspicious. My hypothesis is that the error from the Intel
kernel driver caused the "Fatal server error" "wl_registry@2: error 0:
invalid global wl_output (36)" in gnome-shell. Since the screen is
actually still operational (after all, the computer didn't crash, only
that session, and i was immediately shown the login screen and able to
login again), what should have happened is that gnome-shell should have
gracefully dealt with whatever happened without a fatal error.
This is the first time this has happened, and it did not used to happen
before my upgrade to Artful a few days ago.
Oct 30 05:46:16 bshanks-SP4 kernel: [358036.641989] [drm:intel_mst_disable_dp
[i915]] *ERROR* failed to update payload -22
Oct 30 05:46:16 bshanks-SP4 gnome-shell[7083]: WARNING: addSignalMethods is
replacing existing [0x5563dd13c
c40 Gjs_ShowAppsIcon.dash-item-container] connect method
...
(a bunch of similar warnings about addSignalMethods)
...
Oct 30 05:46:18 bshanks-SP4 org.gnome.Shell.desktop[7083]: (EE)
Oct 30 05:46:18 bshanks-SP4 org.gnome.Shell.desktop[7083]: Fatal server error:
Oct 30 05:46:18 bshanks-SP4 org.gnome.Shell.desktop[7083]: (EE) wl_registry@2:
error 0: invalid global wl_output (36)
Oct 30 05:46:18 bshanks-SP4 org.gnome.Shell.desktop[7083]: (EE)
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-shell 3.26.1-0ubuntu5
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Oct 30 06:01:36 2017
DisplayManager: gdm3
InstallationDate: Installed on 2016-04-06 (572 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323)
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to artful on 2017-10-26 (4 days ago)
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug artful wayland-session
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https://bugs.launchpad.net/bugs/1728588
Title:
session crashed with wl_registry@2: error 0: invalid global wl_output
(36) after kernel: [drm:intel_mst_disable_dp [i915]] *ERROR* failed
to update payload -22
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