[Bug 1896812] Re: Failed to start GNOME Shell on X11

[Facundo Flores]

*** This bug is a duplicate of bug 1896818 ***
https://bugs.launchpad.net/bugs/1896818

** This bug has been marked a duplicate of bug 1896818
   Gnome-shell crash after turn display off in mutter 3.36.6-ubuntu0.20.04.1 
(NVIDIA)

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https://bugs.launchpad.net/bugs/1896812

Title:
  Failed to start GNOME Shell on X11

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[Bug 1896812] [NEW] Failed to start GNOME Shell on X11

[Facundo Flores]

Public bug reported:

Ubuntu 20.04.1

Package mutter-3.36.6-1ubuntu0.20.04.1

Sep 23 12:30:03 razorback systemd[2389]: Starting GNOME Shell on X11...
Sep 23 12:30:03 razorback gnome-shell[26684]: **
Sep 23 12:30:03 razorback gnome-shell[26684]: 
mutter:ERROR:../src/backends/x11/meta-monitor-manager-xrandr.c:211:meta_monitor_manager_xrandr_update_screen_size:
 assertion failed: (width > 0 && height > 0 && scale > 0)
Sep 23 12:30:03 razorback gnome-shell[26684]: Bail out! 
mutter:ERROR:../src/backends/x11/meta-monitor-manager-xrandr.c:211:meta_monitor_manager_xrandr_update_screen_size:
 assertion failed: (width > 0 && height > 0 && scale > 0)
Sep 23 12:30:03 razorback systemd[2389]: gnome-shell-x11.service: Main process 
exited, code=dumped, status=6/ABRT
Sep 23 12:30:03 razorback systemd[2389]: gnome-shell-x11.service: Failed with 
result 'core-dump'.
Sep 23 12:30:03 razorback systemd[2389]: Failed to start GNOME Shell on X11.

** Affects: mutter (Ubuntu)
 Importance: Undecided
 Status: New

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https://bugs.launchpad.net/bugs/1896812

Title:
  Failed to start GNOME Shell on X11

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[Bug 1889090] Re: GNOME Shell doesn't start Ubuntu session with 3.36.4 as per assertion in meta_monitor_manager_xrandr_update_screen_size

[Facundo Flores]

Hello Marco.
The new package fixed the problem for me.

Saluti.

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https://bugs.launchpad.net/bugs/1889090

Title:
  GNOME Shell doesn't start Ubuntu session with 3.36.4 as per assertion
  in meta_monitor_manager_xrandr_update_screen_size

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[Bug 1887998] Re: Update to 3.36.4 and SRU it

[Facundo Flores]

Hello! After updating mutter to 3.36.4, GNOME-Shell fails to start on
X11 and crashes. I was forced to switch to Wayland.

2020-07-22 13:23:28 upgrade mutter-common:all 3.36.3-0ubuntu0.20.04.1 
3.36.4-0ubuntu0.20.04.1
2020-07-22 13:23:29 upgrade gir1.2-mutter-6:amd64 3.36.3-0ubuntu0.20.04.1 
3.36.4-0ubuntu0.20.04.1
2020-07-22 13:23:54 upgrade mutter:amd64 3.36.3-0ubuntu0.20.04.1 
3.36.4-0ubuntu0.20.04.1

On X11, whenever I turn the monitor off an on again I'm greeted with a blank 
screen and the message:
"Oh no! Something has gone wrong.
A problem has occurred and the system can't recover.
Please log out and try again."

I'm able to log-in again but the problem persists. Every time I turn on
the monitor, the same happens.

So I reproduced the problem and found this on syslog:

Jul 23 11:23:40 razorback gnome-shell[6832]: **
Jul 23 11:23:40 razorback gnome-shell[6832]: 
mutter:ERROR:../src/backends/x11/meta-monitor-manager-xrandr.c:211:meta_monitor_manager_xrandr_update_screen_size:
 assertion failed: (width > 0 && height > 0 && scale > 0)
Jul 23 11:23:40 razorback gnome-shell[6832]: Bail out! 
mutter:ERROR:../src/backends/x11/meta-monitor-manager-xrandr.c:211:meta_monitor_manager_xrandr_update_screen_size:
 assertion failed: (width > 0 && height > 0 && scale > 0)
Jul 23 11:23:40 razorback gnome-shell[6832]: GNOME Shell crashed with signal 6
Jul 23 11:23:40 razorback gnome-shell[6832]: == Stack trace for context 
0x5605f4678700 ==
Jul 23 11:23:42 razorback systemd[2371]: gnome-shell-x11.service: Main process 
exited, code=dumped, status=6/ABRT
Jul 23 11:23:42 razorback systemd[2371]: gnome-shell-x11.service: Failed with 
result 'core-dump'.
Jul 23 11:23:42 razorback systemd[2371]: gnome-shell-x11.service: Scheduled 
restart job, restart counter is at 1.
Jul 23 11:23:42 razorback systemd[2371]: Stopped target GNOME X11 Session 
(session: ubuntu).
Jul 23 11:23:42 razorback systemd[2371]: Stopping GNOME X11 Session (session: 
ubuntu).
Jul 23 11:23:42 razorback systemd[2371]: Stopped target GNOME X11 Session.
Jul 23 11:23:42 razorback systemd[2371]: Stopping GNOME X11 Session.
Jul 23 11:23:42 razorback systemd[2371]: Stopped target GNOME Shell on X11.
Jul 23 11:23:42 razorback systemd[2371]: Stopping GNOME Shell on X11.
Jul 23 11:23:42 razorback systemd[2371]: Stopped GNOME Shell on X11.
Jul 23 11:23:42 razorback systemd[2371]: Starting GNOME Shell on X11...
Jul 23 11:23:45 razorback /usr/lib/gdm3/gdm-x-session[6713]: (II) event5 - 
Logitech G403 Prodigy Gaming Mouse: SYN_DROPPED event - some input events have 
been lost.
Jul 23 11:23:46 razorback gnome-shell[21905]: **
Jul 23 11:23:46 razorback gnome-shell[21905]: 
mutter:ERROR:../src/backends/x11/meta-monitor-manager-xrandr.c:211:meta_monitor_manager_xrandr_update_screen_size:
 assertion failed: (width > 0 && height > 0 && scale > 0)
Jul 23 11:23:46 razorback gnome-shell[21905]: Bail out! 
mutter:ERROR:../src/backends/x11/meta-monitor-manager-xrandr.c:211:meta_monitor_manager_xrandr_update_screen_size:
 assertion failed: (width > 0 && height > 0 && scale > 0)
Jul 23 11:23:46 razorback systemd[2371]: gnome-shell-x11.service: Main process 
exited, code=dumped, status=6/ABRT
Jul 23 11:23:46 razorback systemd[2371]: gnome-shell-x11.service: Failed with 
result 'core-dump'.
Jul 23 11:23:46 razorback systemd[2371]: Failed to start GNOME Shell on X11.
Jul 23 11:23:46 razorback systemd[2371]: Dependency failed for GNOME Shell on 
X11.
Jul 23 11:23:46 razorback systemd[2371]: Dependency failed for GNOME X11 
Session.
Jul 23 11:23:46 razorback systemd[2371]: Dependency failed for GNOME X11 
Session (session: ubuntu).
Jul 23 11:23:46 razorback systemd[2371]: gnome-session-x11@ubuntu.target: Job 
gnome-session-x11@ubuntu.target/start failed with result 'dependency'.
Jul 23 11:23:46 razorback systemd[2371]: gnome-session-x11.target: Job 
gnome-session-x11.target/start failed with result 'dependency'.
Jul 23 11:23:46 razorback systemd[2371]: gnome-shell-x11.target: Job 
gnome-shell-x11.target/start failed with result 'dependency'.
Jul 23 11:23:46 razorback systemd[2371]: gnome-shell-x11.service: Scheduled 
restart job, restart counter is at 2.
Jul 23 11:23:46 razorback systemd[2371]: Stopped GNOME Shell on X11.
Jul 23 11:23:46 razorback systemd[2371]: Starting GNOME Shell on X11...
Jul 23 11:23:46 razorback gnome-shell[21946]: **
Jul 23 11:23:46 razorback gnome-shell[21946]: 
mutter:ERROR:../src/backends/x11/meta-monitor-manager-xrandr.c:211:meta_monitor_manager_xrandr_update_screen_size:
 assertion failed: (width > 0 && height > 0 && scale > 0)
Jul 23 11:23:46 razorback gnome-shell[21946]: Bail out! 
mutter:ERROR:../src/backends/x11/meta-monitor-manager-xrandr.c:211:meta_monitor_manager_xrandr_update_screen_size:
 assertion failed: (width > 0 && height > 0 && scale > 0)
Jul 23 11:23:46 razorback systemd[2371]: gnome-shell-x11.service: Main process 
exited, code=dumped, status=6/ABRT
Jul 23 11:23:46 razorback systemd[2371]: gnome-shell-x11.service: Failed with 
result