Well, if this only happens on Linux Mint, you are on the wrong bug
tracker. I added the Linux Mint task to the report.
With that said, the lightdm developers are possibly willing to add
whatever is required to address this issue, but in that case they need
to know - really know - what would be required. Myself is working with
Ubuntu and sometimes the official flavors, so I can't help there.
As regards your ideas in comment #5, the first one is already there in
/usr/lib/lightdm/guest-session-auto.sh. When I had a quick look in
Xubuntu, I got the impression that the xscreensaver settings are saved
in ~/.xscreensaver rather than as gsettings values, but I may not have
got the whole picture.
So the ball is in your court again. ;)
** Also affects: linuxmint
Importance: Undecided
Status: New
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to lightdm in Ubuntu.
https://bugs.launchpad.net/bugs/1610619
Title:
Xscreen saver and lightdm prevent use of operating system (total
lockout) after guest session screen lock
Status in Linux Mint:
New
Status in xscreensaver:
New
Status in lightdm package in Ubuntu:
Incomplete
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
To manage notifications about this bug go to:
https://bugs.launchpad.net/linuxmint/+bug/1610619/+subscriptions
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