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At one point I switched from GDM to slim and now I can't seem to get past the splash screen. After pressing Esc I can see that it is stuck on Starting X Display Manager: Slim. I need to get back to GDM or just figure out what it is doing.


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Did you remove slim and it's libraries from your computer, or has it done this since you set it to default to slim? – tj111 Aug 18 '10 at 16:03
up vote 8 down vote accepted

Assuming GDM is still installed:

sudo dpkg-reconfigure gdm

will let you select what your default display manager is. If it's not installed...well, install it.

It'll go into effect on reboot.

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I would drop into a command prompt - You can switch at any time by pressing Ctrl+Alt+F2 and login. Then you can sudo apt-get remove slim. Once you've done so - if you already have GDM installed then just sudo dpkg-reconfigure gdm otherwise run sudo apt-get install gdm

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