This looks similar to https://gitlab.gnome.org/GNOME/gdm/-/issues/462, although that upstream bug seems to imply the problem happens systematically, whereas in my case it's random.
This looks similar to https:/ /gitlab. gnome.org/ GNOME/gdm/ -/issues/ 462, although that upstream bug seems to imply the problem happens systematically, whereas in my case it's random.