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User login list on lightdm managed desktop

Posted: Tue Dec 19, 2017 9:17 am
by bobinmurphy
I have 18.3 on my system and installed libvirt-manager. It created a couple of entires in the passwd file for accounts libvirt-qemu and libvirt-dnsmasq. Both entires have UID and GID values outside the range used for login as defined in the /etc/login.defs file. However there's always and entry on the lightdm login screen for the libvirt-qemu entry. Neither account is a user account that can be logged into. How do I get the libvirt-qemu entry removed from the list of users on the login page?

Re: User login list on lightdm managed desktop

Posted: Tue Dec 19, 2017 9:09 pm
by pcspecialistpdx
You could try replacing lightdm with mdm:

sudo apt install mdm xscreensaver

sudo apt remove slick-greeter lightdm lightdm-settings apparmor

Re: User login list on lightdm managed desktop

Posted: Tue Dec 19, 2017 9:43 pm
by greerd
/etc/lightdm/users.conf has a [UserList] option 'minmum-uid=500' which looks to conflict with /etc/login.defs 'UID_MIN 1000'.
You could try setting minimum-uid=1000 and see if that helps. Your user id should = 1000. typing 'id' at the command prompt will tell.

Re: User login list on lightdm managed desktop

Posted: Sun Jan 14, 2018 9:22 pm
by bobinmurphy
Regardless of the conflicts between /etc/lightdm/users.conf and /etc/login.defs for the min and max UID and GID, the values for libvirt-qemu are GID=64055 and UID=131. If either of the config files were actually controlling which "users" are presented for login, libvirt-qemu shouldn't show up.