I see the log-in screen but when I select one and enter the password it fails to log me in. It easily enters into guest account by the way.

I suspected there is some graphical problem and checked Xorg log. There it couldn't access fb0 for permission problems.

I should note the problem started happening when I updated Ubuntu from 14 to 16.

I also looked at kernel log and noticed some problems there. So I started a new thread here which didn't get any response.

So I uninstalled and re-installed lightdm and Xorg and Ubuntu-desktop with no success.

Any idea on how to investigate the matter?


The problem was that my user has lost ownership of some items in my home folder.

This was fixed with help of Eric^^ in #ubuntu.

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