1

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.

  • Please provide some details regarding the hardware (in particular the graphics module) and the way you upgraded to Ubuntu 14.04. – Bruni Oct 2 '15 at 14:02
  • Its a Dell 15 3452. I upgraded by going into system settings but i know it didnot complete properly. – Neelam Ahlawat Oct 2 '15 at 14:11
  • 2
    Possible duplicate of Ubuntu gets stuck in a login loop – karel Mar 4 '17 at 21:46
1

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.

  • @NeelamAhlawat - I just want to check to see if you managed to resolve this. If you haven't then, by all means, let us know and someone may have another route to try. – KGIII Oct 4 '15 at 15:33
  • Comments are not for extended discussion; this conversation has been moved to chat. – Seth Oct 6 '15 at 15:43
  • This problem is so pervasive but so far there is no definitely answer... – NathaneilCapital Dec 21 '15 at 8:35

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.