Bug#974985: gnome: logged out after screen lock

Simon McVittie smcv at debian.org
Wed Nov 18 09:38:02 GMT 2020

Control: reassign 974985 gnome-shell-extensions 3.38.1-1

Summary of the bug report: After leaving the computer idle and logged in
to GNOME in Wayland mode, when the screen locks based on a timer,
waking the screen back up results in the gdm login screen; the session
seems to have ended. This happens consistently.

>From the symptoms described, GNOME Shell appears to have crashed,
resulting in the session terminating.

On Tue, 17 Nov 2020 at 16:42:27 +0000, Simon McVittie wrote:
> On Tue, 17 Nov 2020 at 16:19:18 +0000, Marco Ambu wrote:
> > Note that using Win + L works as expected: it blanks the screen and then shows
> > me the screen lock page to go back to the existing session.
> >
> > This is the last message before I stopped doing anything:
> > Nov 17 16:06:56 orange gnome-shell[4339]: JS ERROR: Error: Argument width:
> > value is out of range for gfloat#012_relayout@/usr/share/gnome-shell/extensions
> > /[1]window-list at gnome-shell-extensions.gcampax.github.com/
> > workspaceIndicator.js:91:14
> Please try disabling all GNOME Shell extensions. If that resolves this,
> then it's a bug in one of the extensions, most likely the window list,
> and we should reassign #974985 to that package.

The bug reporter confirmed in private email that disabling the "window
list" extension is a workaround for this, therefore this is probably a
bug in that extension.

> As far as I can tell from your log, either GNOME Shell, Xwayland or
> Xorg crashed after this point - although I would have expected more
> messages to be logged. Please try looking at the corresponding time in
> the systemd journal or /var/log/syslog, which might provide more detail
> (not all messages go into /var/log/messages).

This would probably still be useful information for whoever investigates
this bug next.


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