Question

21

Make KDM the default display manager

rated 0 times [ 21] [ 0] / answers: 1 / hits: 59837 / 2 Years ago, thu, may 19, 2022, 4:11:05

I'm giving KDE another try - so far so good. I installed everything using apt-get install kubuntu-desktop. During the installation it asked me which login manager to use and I chose LightDM - however, now I'm finding user sessions (KDE) are behaving a little funny - when left for some time, they lock out asking for password, but there's no way to switch user (i.e. there's a small window asking for password with Ok and Cancel buttons - no Switch User, Shutdown, Suspend or anything).

Pressing Ctrl-Alt-F[something] shows a text log, where I can see a message "Not starting KDM because it's not the default manager" - so I think my problem can be fixed by making it default.

How can I do this?

(actually, trying to switch user via K-menu - Leave - Switch user results in the same dialog: "The session was locked by sergey, please enter your password")

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

humbire

Add To Favorites

Follow

Total Points: 55

Total Questions: 93

Total Answers: 113

Location: Oman

Member since Fri, Dec 23, 2022

1 Year ago

humbire questions

1 Nvidia driver not working on Ubuntu 22.04

Thu, May 13, 21, 02:28, 3 Years ago

1 How do i uninstall all the pre-installed games on Ubuntu 22.04 LTS

Sat, Sep 10, 22, 15:57, 2 Years ago

1 Alt Gr key no longer a level 3 shift ater upgrating to 21.10

Sat, Dec 17, 22, 09:12, 1 Year ago

1 How do I completely remove Steam or .deb file?

Sun, Oct 24, 21, 14:23, 3 Years ago

1 Open Alacritty terminal emulator on keyboard shortcut

Wed, May 17, 23, 22:16, 1 Year ago

View All

answered 2 Years ago algicuade · Accepted Answer

Reconfiguring

With the Debian and the Debian based (K/X/L/ubuntu) you could use the dpkg-reconfigure.

    man dpkg-reconfigure:



    NAME

           dpkg-reconfigure - reconfigure an already installed package



    SYNOPSIS

            dpkg-reconfigure [options] packages



    DESCRIPTION

    dpkg-reconfigure reconfigures packages after they have already been 

    installed. Pass it the names of a package or packages to reconfigure. 

    It will ask configuration questions, much like when the package was first installed...

That is:

sudo dpkg-reconfigure kdm

or

sudo dpkg-reconfigure gdm

or
...

Kubuntu & LightDM

The LightDM is : https://wiki.kubuntu.org/LightDM

There was a plan: https://blueprints.launchpad.net/ubuntu/+spec/desktop-o-kubuntu-lightdm

QLightDM: https://lists.ubuntu.com/archives/kubuntu-devel/2011-June/005248.html

With the Oneiric the Kubuntu desktop is depending the KDM: http://packages.ubuntu.com/oneiric/kubuntu-desktop