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I'm having a serious problem. I use dual OS, so I'm posting with Windows. Somewhat about 2-3 hours before everything was working fine I have modified Ubuntu a lot and was using Mac OS X login screen. It was working fine but I was just having fun and typed this command in terminal to power off (using Ubuntu 13.10) {and using root}.

sudo shutdown -h now

Also I changed the password for su using

sudo passwd root

I kept my laptop aside and came after 2-3 hours. it booted with a splash screen of mac. then it took to a blank screen (OK this happens every time, but after 5-10 seconds login appears), but these times I'm getting a black screen with a mouse. I can move the mouse but can't log in. Only the black screen is there, but everything else is working when I press power button it shuts down like usual.

screenshot

I'm stuck, please help me!

  • what happens when you try to access the virtual shells (Ctrl+Alt+F1, Ctrl+Alt+F2 etc.) – tr33hous Mar 26 '14 at 13:47
  • it said pcname login:dont know what to type and password : in next line – Ashwin Sekhari Mar 26 '14 at 13:49
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To fix this, follow the steps below:

1- Turn on your computer and wait for it too boot up.

2- Once it boots up, press Ctrl+Alt+F1 to enter terminal

3- Type your username, press enter, and type your password and press enter again.

4- Now type

startx

This should start your desktop. Once here, you can uninstall/reset whatever was causing the problem (in this case Mac OS LightDM theme).

5- Reboot the computer it should boot up normally!

  • but i dont know my user name altough i know my acc name .is my user name that one which come sin terminal ****@pcname : – Ashwin Sekhari Mar 26 '14 at 13:50
  • Try logging into root. Un:root. PW:(what you set it as). Then type 'CD /home' then type 'ls'. What does that output? – Moose Mar 26 '14 at 13:51
  • im using this login github.com/Wattos/LightDM-Webkit-MacOSX-Theme – Ashwin Sekhari Mar 26 '14 at 13:52
  • Sorry.. Your username is what you said in the first comment – Moose Mar 26 '14 at 13:53
  • ok let me try rebooting my pc so will take some time to post btw what to type here Un:root. PW:(what you set it as !!!here!!) – Ashwin Sekhari Mar 26 '14 at 13:54
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Try to run the following command:

sudo apt-get install lightdm --reinstall

and restart, if it works then enjoy.

If it does not work, then you can run following command:

sudo deborphan | sudo xargs apt-get -y remove lightdm --purge && sudo apt-get install lightdm

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