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Is there a permanent fix for the looping login problem in LightDM?

I recently installed Ubuntu 12.04 64-bit. LightDM won't work even though I haven't changed any options (background, etc.). It just throws another login screen at me if I log in.

So I did the stuff you're supposed to. I reconfigured gdm from the terminal and used that to log in, and have been using gdm for ~3 months now. The thing is, I want LightDM back so I can change it to a desktop background I made. (I have no idea about customising GDM and really don't care.)

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  • Is there any chance that tightvncserver package is installed?
    – komputes
    Jul 13, 2012 at 23:31
  • I believe so, I have "X11VNC Server" with a TightVNC option enabled.
    – WindowsEscapist
    Jul 14, 2012 at 15:51
  • After re-install, problem is mysteriously gone - however, I prefer MDM after all!
    – WindowsEscapist
    Oct 16, 2012 at 13:15

1 Answer 1

Reset to default
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Boot into recovery mode, selected "network" then "root" and run the following command:

# chown -R your_username:your_username /home/your_username

Upon rebooting, access to desktop should be reestablished.

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  • komputes answer fixed the problem for me. More specific: the .Xauthority file in my home directory had root ownership, after changing the ownership to <your_username> the login worked again chown -R your_username:your_username /home/your_username/.Xauthority @komputes: sorry but I cannot upvote and comment due to not enough reputation
    – Peter Prettenhofer
    Nov 22, 2012 at 8:08

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