Gnome-shell and other packages have been updated since. It doesn't (yet) say it's a duplicate of an older bug.
Edit: it does now. Not sure where to go from here. The bug is very reproducible and specific: wayland, no external monitor -> lock screen or screen blank --> crash and return to gdm. If in xorg or in wayland with an external monitor --> everything works.
It very rarely generates a bug/crash report but this morning it did, from xwayland, which was identical to what I previously have reported here: https:/ /bugs.launchpad .net/ubuntu/ +source/ xwayland/ +bug/2034995
However, launchpad said that bug was a duplicate of a much older bug.
I reported it again here: https:/ /bugs.launchpad .net/ubuntu/ +source/ xwayland/ +bug/2035057
Gnome-shell and other packages have been updated since. It doesn't (yet) say it's a duplicate of an older bug.
Edit: it does now. Not sure where to go from here. The bug is very reproducible and specific: wayland, no external monitor -> lock screen or screen blank --> crash and return to gdm. If in xorg or in wayland with an external monitor --> everything works.