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I am totally new to Ubuntu which came pre-installed in my laptop. I upgraded to 14.04 version but I think it was not installed properly when I restarted the system. Now it is not letting me login even though I am entering the right password. I read somewhere to enter into root but I can't as I don't get any screen on pressing Alt+CRTL+F1 or F3.

Dan
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Neelam Ahlawat
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1 Answers1

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I had a similar issue and resolved it by doing this:

It's not just F3 but it is Ctrl+Alt+F3 and login into the shell. Also, I've seen laptops that have the behavior of the FN and F buttons reversed, meaning that you have to press the FN button to actually press the F key. I have no idea why but the N5010 is such a model.

Assuming we get that far, run

ls -lah

If in the output the line is along these lines:

-rw-------  1 root root   53 Nov 29 10:19 .Xauthority

then you need to do 

chown username:username .Xauthority

and try logging in.

Else, do 

ls -ld /tmp

Check for the first 10 letters in the left: they should read exactly so: drwxrwxrwt.

drwxrwxrwt 15 root root 4096 Nov 30 04:17 /tmp

Else, you need to do 

sudo chmod a+wt /tmp

and check again.

If not both, I'd recommend you either

dpkg-reconfigure lightdm

or uninstall, reinstall it. Now press Alt+-> until you reach the login screen again, and restart.

Please note that this was not my solution. I found the answer at this site in a post such as this one:

Ubuntu stuck on login screen

I'm unable to find the exact post that I initially found but this one is similar/close enough and I'd saved the information just to be able to it again if I needed it.

Community
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KGIII
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