Everytime I boot up my ubuntu 12.10, I get a black console screen.
I need to login in tty, and restart lightdm :
sudo service lightdm restart
Then the GUI lightdm login screen appears as expected.
How to solve this annoying problem ?
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Finally, I solved the problem by :
sudo apt-get install gdm
When asked, choose GDM as your default X windows manager
Ps : firing the command
dpkg-reconfigure lightdm without having installed GDM before didn't solve my problem. So try installing GDM before.
This issue could be related to the use of a SSD.
If the first solution doesn't work for you, another workaround is to delay the startup of lightdm.
sudo nano /etc/init/lightdm.conf
and just BEFORE exec lightm, insert this single line :
Adjust the time (in seconds) depending on your needs (2 sec works for me). Save the file, and restart !
Found this solution here : http://www.webupd8.org/2013/01/ubuntu-lightdm-black-screen-when-using.html
If you are booting windows 7 and ubuntu 16.04 LTS i have same problem then i tried everything referred from sites.finally nothing is worked for me.
so one thing is worked for me.
this will boot your ubuntu os normally. and it works for me also it saves your time to everytime restart lightdm service.