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help us find the cause of the crash please follow these steps:
1. Run these commands:
journalctl -b0 > journal.txt
journalctl -b-1 > prevjournal.txt
and attach the resulting text files here.
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ubuntu-bug YOURFILE.crash
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** Changed in: gnome-shell (Ubuntu)
Status: New => Incomplete
** Tags added: hotplug multimonitor noble
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/2098547
Title:
gnome-shell crashes and logs out when disconnecting USB-C cable and
Ubuntu Dash is enabled
Status in gnome-shell package in Ubuntu:
Incomplete
Bug description:
I recently updated to Ubuntu 24.04 and I noticed that the Gnome Shell
frequently crashes when I disconnect the USB-C cable that connects by
laptop to my screen.
This is sporadic and not easy to reproduce, but when it happens, the
sequence usually is:
1. Run Ubuntu 24.04 with Gnome desktop on a laptop, connected to a screen
with USB-C cable
2. Use it for several hours. I am not able to reproduce this issue directly
after startup.
3. Disconnect the USB-C cable
Expected result: Gnome session should continue on laptop screen after
cable disconnect
Actual result: Gnome session crashes and user is presented with Gnome
login screen
The journald logs from the time of each crash consistently shows these
log lines:
```
Jan 21 16:07:00 u513b3c1e6b045d.ant.amazon.com kernel: usb 3-8: USB
disconnect, device number 10
Jan 21 16:07:00 u513b3c1e6b045d.ant.amazon.com kernel: usb 3-8.1: USB
disconnect, device number 11
Jan 21 16:07:00 u513b3c1e6b045d.ant.amazon.com kernel: usb 2-1: USB
disconnect, device number 4
Jan 21 16:07:00 u513b3c1e6b045d.ant.amazon.com kernel: r8152-cfgselector
2-1.2: USB disconnect, device number 5
...
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com gnome-shell[7567]: GNOME Shell
crashed with signal 11
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com gnome-shell[7567]: == Stack
trace for context 0x5653c5b461c0 ==
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com gnome-shell[7567]: #0
5653c5c11a48 i resource:///org/gnome/shell/ui/init.js:21 (10c784a70bf0 @ 48)
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com gnome-shell[17585]: (EE)
failed to read Wayland events: Connection reset by peer
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com acme_ui[14784]: Error reading
events from display: Broken pipe
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com update-notifier[20143]: Error
reading events from display: Broken pipe
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com polkitd[1307]: Unregistered
Authentication Agent for unix-session:6 (system bus name :1.178, object path
/org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
(disconnected from bus)
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com systemd[6941]:
[email protected]: Main process exited, code=killed,
status=11/SEGV
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com evolution-alarm[11718]: Error
reading events from display: Broken pipe
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com xdg-desktop-por[15628]: Error
reading events from display: Broken pipe
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com gsd-power[9811]: Error reading
events from display: Broken pipe
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com gsd-wacom[9849]: Error reading
events from display: Broken pipe
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com gsd-keyboard[9805]: Error
reading events from display: Broken pipe
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com xdg-desktop-por[14801]: Error
reading events from display: Broken pipe
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com gsd-color[9792]: Error reading
events from display: Broken pipe
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com systemd[6941]:
xdg-desktop-portal-gtk.service: Main process exited, code=exited,
status=1/FAILURE
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com systemd[6941]:
xdg-desktop-portal-gtk.service: Failed with result 'exit-code'.
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com systemd[6941]:
org.gnome.SettingsDaemon.Color.service: Main process exited, code=exited,
status=1/FAILURE
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com systemd[6941]:
org.gnome.SettingsDaemon.Wacom.service: Main process exited, code=exited,
status=1/FAILURE
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com systemd[6941]:
pyacme-gtk-ui.service: Main process exited, code=exited, status=1/FAILURE
Jan 21 16:07:04 u513b3c1e6b045d.ant.amazon.com systemd[6941]:
pyacme-gtk-ui.service: Failed with result 'exit-code'.
```
I tried to read
https://gjs.guide/extensions/development/debugging.html on how to
debug this myself, but I can't even find the JavaScript code the error
`resource:///org/gnome/shell/ui/init.js:21 (10c784a70bf0 @ 48)` might
refer to on my system.
**Workaround:** I noticed that if I disable the Ubuntu Dash (app bar
on the left side of the screen), this issue never happens.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2098547/+subscriptions
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