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My laptop cannot boot up after I upgrade ubuntu 12.04. The error message is unsupported number of auguments (3) back to default xsession

Anyone have solution to this problem?

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1 Answer

That looks more that your xserver is not starting instead of your whole server. Isn't it?

Do you get a shell? What do you see on your screen?

Try

 dpgk-reconfigure xserver-xorg

to reconfigure your xserver.

Have a look in your logfiles

 tail -200 /var/log/syslog

or

tail -200 /var/log/Xorg.0.log

for any hints what exactly is going wrong.

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