Comment 0 for bug 2000240

Hello

since upgrading to 22.04.1 LTS it's no longer possible to switch users from graphical menu.

The behaviour is as follows:
- from user A session, click on System menu and then Change user
- the user list is displayed
- clicking on another user (B) then I'm prompted for the password
- when I enter the password, there is a lag, and then the user list is displayed again

I tried alternatives
- locking the A session before trying to open B session > no success
- using the Wayland logging possiblity > no success

Using journalctl wit support from experienced Ubunteros I tried to find issues and apparently there is an error related to the problem (I do not know if it's the cause or the consequence)

sept. 04 17:55:12 pcmail gdm3[1002]: GLib-GObject: g_object_set_is_valid_property: object class 'GdmLocalDisplay' has no property named 'supported-session-tyes'

there has also been a problem with apparmor (several messages logged)

sept. 04 17:55:21 pcmail audit[746]: USER_AVC pid=746 uid=103 auid=4294967295 ses=4294967295 subj=? msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/org/freedesktop/login1" interface=>
                                      exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'