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I like lightdm and especially its webkit-greeter a lot. Is there a way to install kde without installing kdm and using lightdm instead?

I have tried everything from installing kdm and then remove it to dpkg-reconfigure kdm and lightdm to lightdm is the default. but I always got kdm when I boot up or a broken system, when I remove it completely.

Does anyone know how to get kde together with lightdm?

By the way. I am doing this on a minimal installation.

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Since your initial setup is a minimal installation, I'll take Ubuntu 14.04.1 Server as the base OS.

After installation, all that you get is a command-line prompt without lightdm nor a desktop environment.

Open a user session and type the following commands:

sudo apt-get update
sudo apt-get install lightdm-webkit-greeter --no-install-recommends
sudo apt-get install lightdm --no-install-recommends
sudo apt-get install kubuntu-desktop --no-install-recommends
sudo reboot

Now the lightdm greeter will open a kde plasma desktop:

enter image description here

  • T'es incroyable, toi... ;-) As from now with bounties where you're participating, I'm not even trying! >:) – Fabby Feb 7 '15 at 20:12
  • 1
    @Fabby Merci, but continue to propose great answers! I think we're all looking for questions where the problem solving part 1. is fun and 2. can teach us new stuff about Ubuntu. – Sylvain Pineau Feb 9 '15 at 8:53
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You can change the default greeter by changing the configuration file under the [SeatDefaults] section, to state:

/etc/lightdm/lightdm.conf

[SeatDefaults]
...
greeter-session=lightdm-yourgreeter-greeter

Enabling lightdm

Make sure to enable lightdm.service using systemctl so lightDM will be started at boot.

Command line tool

Lightdm offers a command line tool, dm-tool which can be used to lock the current seat, switch sessions, etc, which is useful with window managers and for testing. To see a list of available commands, execute:

dm-tool --help
  • Have you seen the last sentence of this post? Thank you but there is no desktop installed., yet – Josh Feb 4 '15 at 19:07

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