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This is weird,I was reading some blog and I found that I can manually start GUI by issuing this command sudo startx,so I did that.Now I'm unable to login to my user account.

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2  
Try restarting your computer. –  nikhil Oct 28 '12 at 14:42
    
Did you that in a terminal window with all GUI already running? –  Oxwivi Oct 28 '12 at 14:43
    
are you able to login from CLI ? I mean not from login screen . type ctrl+alt+F1 at the login screen of yours . there are you able to login ? –  AgentCool Oct 28 '12 at 14:46
    
If thats not worked , you should try this .askubuntu.com/questions/84324/password-reset-disk –  AgentCool Oct 28 '12 at 14:47

1 Answer 1

OK do the following command from your terminal with CTRL+ALT+T

or from CLI with CTRL+ALT+F1

sudo restart lightdm 

If issue not solved then reinstall your lightdm with

sudo apt-get install --reinstall lightdm
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He can't log in, there's no access to the terminal. –  Oxwivi Oct 28 '12 at 14:43
    
@Oxwivi right but , he has executed sudo startx , i thought he could be there . –  AgentCool Oct 28 '12 at 14:45
    
Not if he did from a terminal. –  Oxwivi Oct 28 '12 at 15:18
    
what ever , he can do my post from terminal or CLI .if its not resolved the issue i gave him a link to reset the password . –  AgentCool Oct 28 '12 at 15:23
    
I had to re-install lightdm. :( –  Rajat Saxena Oct 31 '12 at 22:04

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