What's the difference between GDM and LightDM?
150,349
Both LightDM
and GDM
(GNOME Display Manager) are login managers.
They both provide graphical login capabilities (the GUI with the list of the system's users) as well as remote logins using the XDMCP protocol.
Ubuntu is supposed to officially replace GDM in favor of the lighter and more easily customizable LightDM
You can have both of them installed (or add even more, like KDM
), but only one will be used at any time.
The default can be selected by running:
sudo dpkg-reconfigure gdm
(if gdm is already installed)
More information on LightDM can be found on the Ubuntu wiki.
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Author by
user7044
Updated on September 18, 2022Comments
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user7044 over 1 year
What is the difference between GDM and LightDM? How can one switch between them. I mean if I have selected LightDM during installation process, will I be able switch to GDM?
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josinalvo over 11 yearsthey are not desktop managers: gnome, kde and unity are. GDM and LightDM are called login managers or display managers
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Mooncrater about 5 years
sudo dpkg-reconfigure gdm3
worked for me. -
eddy147 almost 4 yearsSo there is a bug for this reported: bugs.launchpad.net/bugs/1874194