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I have a problem accessing to my Ubuntu 13.04 system. Recently I updated from 12 to 13 and after some hard work I am able to input my password and user name, but I can't get any further, because the system doesn't recognize my password and/or account. So I have no access to the graphic environment, only to a terminal. Some people told me that may be it's a resolution problem. Can somebody tell me what's wrong and what should I do?

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  • Are you using 13.04 or 13.10 because 13.10 isn't supported anymore.
    – Korkel
    May 29, 2014 at 18:10
  • Can you paste part of your /var/log/syslog to paste.ubuntu.com after you fail access GUI.
    – c0rp
    May 29, 2014 at 18:55

3 Answers 3

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you could try to enter:

sudo apt-get update
sudo apt-get install --reinstall ubuntu-desktop
sudo apt-get install lightdm

and then in the terminal enter:

sudo apt-get install gdm

and then you chose lightdm.

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Try to make a new account and chek if you can login:

sudo useradd -m username

sudo passwd username

Try also what Michael said:

sudo apt-get update
sudo apt-get install --reinstall ubuntu-desktop
sudo apt-get install lightdm

Followed by the last command:

sudo apt-get install gdm
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  • I did what Michael said, but it doesn't work. And so I try your recommendation and now I can get in on my graphical environment, but now the problem is that I don't have acces to my super user account because the system still doesn't whant my password. What should I do? Thanks a lot for your answers.
    – MontroOne
    May 31, 2014 at 4:56
  • Sorry, my mistake. I have acces to sudo user, it was a lenguage configuration keyboard problem. Thank you. One more question, do you recommend to update my system to the 14.04 version?
    – MontroOne
    May 31, 2014 at 5:07
  • Yes I suggest you to do.
    – Korkel
    May 31, 2014 at 7:28
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I had similar problem with 16.04. The cause was my graphic adapter driver (newer versions of Xorg, Lightdm or whatever after update/upgrade conflicted with it). Reinstalling/updating Nautilus, Xorg etc. didn't help but complete uninstall of graphic driver did the job. In my case it was Nvidia so I typed to the command line sudo apt-get purge Nvidia*, then restarted. Of course it started with crapy resolution and required to reinstall the driver but it worked and works so far. So the sequence that worked for me was: sudo apt-get update sudo apt-get install lightdm sudo apt-get install gdm (then choosed lightdm) sudo apt-get purge Nvidia* sudo reboot The "password loop" disappeared and then I just installed again my Nvidia driver to restore acceptable screen resolution.

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