I am still getting this bug with the proposed version. Ubuntu 20.04 on a
Lenovo machine.
I hope I updated correctly, I followed the instructions linked above to
activate the "proposed" repository and installed the package with "sudo
apt install mutter/focal-proposed", then deactivated the "proposed"
repository and rebooted my machine. For the record, "dpkg --status
mutter" shows "Version: 3.36.4-0ubuntu0.20.04.2", so I think I did it
correctly. I did not touch gnome-shell. "gnome-shell --version" shows
3.36.3.
I used the touchscreen and triggered the bug after just a few minutes.
gnome-shell crashed and some familiar messages were dumped in the
syslog:
Aug 11 10:51:24 c930 gnome-shell[5197]: Object Meta.BackgroundActor
(0x55be2f3b63f0), has been already deallocated — impossible to access it. This
might be caused by the object having been destroyed from C code using something
such as destroy(), dispose(), or remove() vfuncs.
Aug 11 10:51:24 c930 gnome-shell[5197]: == Stack trace for context
0x55be2bb6a6f0 ==
Aug 11 10:51:24 c930 gnome-shell[5197]: #0 7fff7da0d270 b
resource:///org/gnome/gjs/modules/core/overrides/GObject.js:571 (2255897b6c40 @
25)
Aug 11 10:51:24 c930 gnome-shell[5197]: #1 55be2caa60a0 i
/usr/share/gnome-shell/extensions/desktop-icons@csoriano/desktopGrid.js:209
(2ec7edda91f0 @ 85)
Aug 11 10:51:24 c930 gnome-shell[5197]: #2 55be2caa6018 i
/usr/share/gnome-shell/extensions/desktop-icons@csoriano/desktopGrid.js:148
(2ec7edda4f88 @ 12)
Aug 11 10:51:24 c930 gnome-shell[5197]: JS ERROR: Error: Argument 'instance'
(type interface) may not be
null#012_init/GObject.Object.prototype.disconnect@resource:///org/gnome/gjs/modules/core/overrides/GObject.js:571:24#012_onDestroy@/usr/share/gnome-shell/extensions/desktop-icons@csoriano/desktopGrid.js:209:45#012_init/<@/usr/share/gnome-shell/extensions/desktop-icons@csoriano/desktopGrid.js:148:44
Aug 11 10:51:24 c930 gnome-shell[5197]: clutter_actor_iter_next: assertion
'ri->age == ri->root->priv->age' failed
Aug 11 10:51:27 c930 gnome-shell[5197]: **
Aug 11 10:51:27 c930 gnome-shell[5197]:
mutter:ERROR:../src/backends/x11/meta-stage-x11.c:870:meta_x11_get_stage_window:
assertion failed: (META_IS_STAGE_X11 (impl))
Aug 11 10:51:27 c930 gnome-shell[5197]: Bail out!
mutter:ERROR:../src/backends/x11/meta-stage-x11.c:870:meta_x11_get_stage_window:
assertion failed: (META_IS_STAGE_X11 (impl))
Aug 11 10:51:27 c930 gnome-shell[5197]: GNOME Shell crashed with signal 6
Aug 11 10:51:27 c930 gnome-shell[5197]: == Stack trace for context
0x55be2bb6a6f0 ==
Aug 11 10:51:41 c930 whoopsie-upload-all[7230]: Collecting info for
/var/crash/_usr_bin_gnome-shell.1000.crash...
Aug 11 10:51:41 c930 whoopsie-upload-all[7230]: Marking
/var/crash/_usr_bin_gnome-shell.1000.crash for whoopsie upload
Aug 11 10:51:41 c930 whoopsie[2089]: [10:51:41] Parsing
/var/crash/_usr_bin_gnome-shell.1000.crash.
Aug 11 10:51:42 c930 whoopsie[2089]: [10:51:41] Uploading
/var/crash/_usr_bin_gnome-shell.1000.crash.
Aug 11 10:51:42 c930 systemd[2217]: gnome-shell-x11.service: Main process
exited, code=dumped, status=6/ABRT
Aug 11 10:51:42 c930 systemd[2217]: gnome-shell-x11.service: Failed with result
'core-dump'.
Aug 11 10:51:42 c930 systemd[2217]: gnome-shell-x11.service: Scheduled restart
job, restart counter is at 2.
Aug 11 10:51:42 c930 whoopsie-upload-all[9369]:
/var/crash/_usr_bin_gnome-shell.1000.crash already marked for upload, skipping
I'm uploading the output of "apport-retrace -R -s _usr_bin_gnome-
shell.1000.crash", if the information is incomplete please let me know
what I can do get better data.
** Attachment added: "backtrace"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1870867/+attachment/5400621/+files/backtrace
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https://bugs.launchpad.net/bugs/1870867
Title:
gnome-shell crashed with SIGABRT meta_x11_get_stage_window: assertion
failed: (META_IS_STAGE_X11 (impl))
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