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After years of not upgrading to 14.04 I finally did it tonight. Everything went well until I tried logging in. When I try logging in using my usual username and password with the "Ubuntu (Default)" desktop environment I get an error saying (which I assume is Unity, right?):

"Could not acquire name on session bus" (or something like that)

When I "X" that it returns me to the login screen. Same thing when I try logging in as a guest.

I CAN log in using my username and password when I choose the "GNOME" and "GNOME Flashback (Compiz)" environments.

Thanks in advance for your help!

  • Sometimes when I try to log in I can enter and there is a box saying:

    "Could not acquire name on session bus"

    If I ignore it, it seems I can do anything I want. But as soon as I "X" it it logs me out.

    Usually, though, after entering my password the screen goes blacks with random letter (too quick for me to read) and returns me to the log in page.

    – user62372 Sep 15 '16 at 02:31

2 Answers2

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From command line

sudo apt-get update 
sudo apt-get install --reinstall ubuntu-desktop 
sudo apt-get install --reinstall unity 
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I did the following and it fixed it (even though I'm not really sure exactly what I did--especially since I didn't have Cinnamon installed)

Unity isn't starting on 13.10 (with Cinnamon 2.0 installed)