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I just started having this problem on 17.04. As I try to login on Ubuntu the screen just goes black for a second, and then I end up back on the login screen. I have tried reinstalling lightdm, that didn't work. I tried using gdm, that didn't work. I tried the following command sudo rm -v .Xauthority, didn't work.

The only thing that made it possible to log in was by creating a new user, but then I can't access my files. How do I solve this problem?

Zanna
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ALEX
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  • Do you mean it started happening with no provocation? Did you install any updates/new packages or do any configuration? – Zanna Aug 10 '17 at 09:49
  • @Zanna I don't think I installed any new packages or updates. – ALEX Aug 10 '17 at 10:05
  • Show me the terminal output of ls -al /home/your_username/.*thority and I'll take a look. Please copy/paste that output into your question, not the comments please. Ping me with @heynnema when you have it. – heynnema Aug 10 '17 at 14:12

1 Answers1

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Are you the owner of you .Xauthority file in you home dir?

Try: 

sudo chown username /home/username/.Xauthority

Replace username with your username, e.g. if your user name is alex:

sudo chown alex /home/alex/.Xauthority

And also make sire the permissions are set correctly:

sudo chmod 600 /home/username/.Xauthority
Johnny Bravo
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