#1042762 sddm: SDDM freezes after switching to a user from KDE Plasma and logging out of the second session

Package:
sddm
Source:
sddm
Description:
modern display manager for X11
Submitter:
Chandra Sekar
Date:
2023-08-24 02:18:02 UTC
Severity:
normal
#1042762#5
Date:
2023-07-31 14:01:34 UTC
From:
To:
Dear Maintainer,

Steps to Reproduce

1. Create 2 users.
1. Log into KDE plasma as user1.
1. Use Plasma's "Switch User" function to switch to user2.
2. Log out from user2's session.

Expected Behaviour

A login screen must be presented, allowing the user to log into any of
the accounts available in the machine.

Actual Behaviour

The login screen is frozen. Switching to user1's session, using
Ctrl+Alt+F1, and selecting "Switch User" again creates a new login
screen in a new TTY8. The old one remains stuck in TTY7.

This appears to be fixed in 0.20.0-1, which is available in unstable.
Since this issue renders the switch users functionality nearly unusable,
can you please backport the fix or make 0.20.0 available in bookworm?