Ubuntu
mutter package

gnome-shell crashes when attaching external monitors with assertion 'logical_monitor != NULL' failed

Bug #2065632 reported by Dalyn Dalton on 2024-05-13

This bug report is a duplicate of: Bug #2050865: GNOME Wayland session crashes with libmutter:ERROR:../src/core/window.c:...:meta_window_get_work_area_for_logical_monitor: assertion failed: (logical_monitor). Edit Remove

This bug affects 12 people

Affects		Status	Importance	Assigned to	Milestone
	Mutter	Unknown	Unknown	auto-gitlab.gnome.org-gnome-mutter-- #3402
	mutter (Ubuntu)	Confirmed	Undecided	Unassigned

Bug Description

Attaching and then detaching a workstation from an external thunderbolt dock causes the shell to crash. The bug here is appears to be related to the detachment, rather than the attachment.

This appears to be fixed upstream with https://gitlab.gnome.org/GNOME/mutter/-/issues/3402, however the current Ubuntu 24.04 does not contain the fix.

Release: Ubuntu 24.04 LTS
gnome-shell: 46.0-0ubuntu5.1

Expected: Machine maintains shell session between docking and un-docking of external monitors

Reality: gnome-shell session crashes upon re-docking the workstation.

Revision history for this message

Dalyn Dalton (itsthenewdx2) wrote on 2024-05-13:

journal.txt Edit (2.4 KiB, text/plain)

Revision history for this message

Launchpad Janitor (janitor) wrote on 2024-05-13:

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in gnome-shell (Ubuntu):
status:	New → Confirmed

Daniel van Vugt (vanvugt) on 2024-05-14

affects:

gnome-shell (Ubuntu) → mutter (Ubuntu)

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2024-05-14:

The 'logical_monitor != NULL' assertions precede the crash, but bug 2050865 shows that's not the crashing assertion. Let's treat this as a duplicate of bug 2050865.