Xscreen saver and lightdm prevent use of operating system (total lockout) after guest session screen lock
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Linux Mint |
New
|
Undecided
|
Unassigned | ||
xscreensaver |
New
|
Undecided
|
Unassigned | ||
lightdm (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
Steps to reproduce bug:
1) Install xubuntu or mint xfce
2) download and set lightdm as desktop manager
3) sign in to a guest session and either close your laptop lid or allow timeout to start screen lock
Why this is a bug:
xscreensaver will not accept a blank/null password, and with a blank/null password assigned to the guest session, the xscreensaver client will not allow the user to continue their session or login as a new user (because you cannot login as a new user as xscreensaver does not support lightdm for this feature.
Why this is severe:
when xscreensaver locks the guest user out of their session, all other users are similarly locked out. Being so locked out, the computer most be hard-reset/rebooted and any documents and processes not saved prior to the guest session being logged in is lost.
Why this is a lightdm bug:
Because lightdm is not setting the gconf setting to disable the lock screen feature for guest sessions
Why this is a xscreensaver bug:
xscreensaver does not support any dm other than mdm
no longer affects: | lightdm |
Changed in lightdm (Ubuntu): | |
status: | Incomplete → New |
Hi Omadas,
lightdm tries to disable screen locking for a few cases, please see:
/usr/lib/ lightdm/ guest-session- auto.sh
Do you possibly know what's missing to make it effective for xscreensaver?