This bug was fixed in the package mutter - 42.5-0ubuntu1
---------------
mutter (42.5-0ubuntu1) jammy; urgency=medium
[ Marco Trevisan (Treviño) ]
* New upstream release (LP: #1985856)
* debian/patches: Refresh
* debian/libmutter-10-0.symbols: Sync with new and removed internal symbols
[ Daniel van Vugt ]
* Update Support-Dynamic-triple-double-buffering.patch.
Dual-GPUs crash in gbm_surface_release_buffer (LP: #1969422)
Leftover mouse pointer when moving between monitors (LP: #1988625)
[ Zoe Spellman ]
* New upstream release
-- Zoe Spellman <[email protected]> Thu, 13 Oct 2022 12:08:14
-0700
** Changed in: mutter (Ubuntu Jammy)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1969422
Title:
gnome-shell crashed with SIGSEGV in gbm_surface_release_buffer() from
meta_drm_buffer_gbm_finalize() from g_object_unref() from
g_object_unref() from g_set_object()
Status in Mutter:
Fix Released
Status in OEM Priority Project:
Fix Committed
Status in mutter package in Ubuntu:
Fix Released
Status in mutter source package in Jammy:
Fix Released
Status in mutter source package in Kinetic:
Fix Released
Bug description:
[ Impact ]
On dual-GPU systems, gnome-shell may crash in
gbm_surface_release_buffer() during display config changes, like when
rearranging monitor positions.
[ Test Plan ]
1. Find a dual GPU system where both use open source drivers (like Intel +
AMD).
2. Ideally also attach one monitor to each GPU.
3. Open Settings and repeatedly change the monitor layout pressing Apply each
time.
Expect: System does not crash.
[ Where problems could occur ]
Anywhere to do with screen updates since the entire triple buffering
patch has been updated.
[ Other Info ]
The Ubuntu Error Tracker has been receiving reports about a problem regarding
gnome-shell. This problem was most recently seen with package version
42.0-1ubuntu1, the problem page at
https://errors.ubuntu.com/problem/4fa0be3b67c650c621a425137efd7376c32451b4
contains more details, including versions of packages affected, stacktrace or
traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software
developer, you can request it at http://forms.canonical.com/reports/.
To manage notifications about this bug go to:
https://bugs.launchpad.net/mutter/+bug/1969422/+subscriptions
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