Bug 308685

Summary:	Possible to lock session in Guest account
Product:	[Plasma] lightdm	Reporter:	David Edmundson <kde>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED UNMAINTAINED
Severity:	major	CC:	peter
Priority:	NOR
Version First Reported In:	master
Target Milestone:	---
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description David Edmundson 2012-10-19 23:03:33 UTC

Whilst logged in as a guest it is possible to lock the screen form the menu. 

As guest has no password, one cannot get back from this.

Fix may be best in kde-workspaces or in guest-setup script to not allow the lock.

Comment 1 Peter Wu 2014-02-05 10:15:32 UTC

This bug still exist with Kubuntu 13.10 (shipping kde-workspace 4.11.3).

Workaround is clearing the password as root:

    passwd -d guest-XXXXX

Comment 2 Nate Graham 2020-10-10 21:20:51 UTC

We no longer use lightDM, having moved to SDDM several years ago. As such, this bug report is no longer applicable. Bugs reports for the new SDDM-based login screen should be filed to one of two places:

1. Visual/UI bugs with the login screen UI itself, or feature requests: plasmashell | Theme - Breeze
2. Bugs with the login/user switching process: https://github.com/sddm/sddm/issues