I want to disable lightdm from autostart. Currenty, I run service lightdm disable from terminal, then run startx.

update-rc.d doesnt help

5 Answers

Note that the method described above doesn't work anymore since 15.04 and later, since Upstart was replaced by Systemd. As described here, one can now disable lightdm like this:

16.04 upward

systemctl disable lightdm.service

15.04, 15.10

systemctl disable lightdm

4

lightdm is started by Upstart, not SysV Init. So update-rc.d doesn't work.

Use

 echo "manual" | sudo tee -a /etc/init/lightdm.override

2

If you want to disable lightdm to enable gdm or kdm or any other display manager, enter the following command in the terminal:

sudo dpkg-reconfigure lightdm

Then enter on ok and then select from the list your desired display manager.

The same answer with screenshots is given here: Reset to Default Unity Login

I just remove the execution bit on the lightdm binary.

chmod -x /usr/sbin/lightdm

Then to re-enable it:

chmod +x /usr/sbin/lightdm

2

This is handled by display-manager... Disable on systemd and you're done.

# systemctl disable display-manager
Removed symlink /etc/systemd/system/display-manager.service.

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