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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!

Melebius
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Ukiyo
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2 Answers2

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To fix this, follow the steps below:

1- Turn on your computer and wait for it to 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!

tebkanlo
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Moose
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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
Aditya
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Sagar Panchal
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