Last time I installed lm-sensor (a package to know CPU Temperature) and restarted my system.
$ sudo apt-get install lm-sensors $ sudo sensors-detect $ sudo service module-init-tools start $ sensors
Since it did not work for me so I thought to restart my system. Then OMG! It started opening in a black screen after 'Ubuntu Splash Screen' on every restart. Sometime I got the message on top of the screen:
Could not write bytes: Broken pipe
Non of keys were working except CTRL+ALT+DEL which restarts the system. Neither CTRL+ALT+F1 to CTRL+ALT+F10 keys were working so that I could go to command line interface.
Only option remaing was to restart my system in Safe Mode. I restarted my system in safe mode and installed GDM (a display manager like lightdm) and configured it:
First change the read only mode to read/write mode by simple using Fix Broken Packages options listed there and then loged in as Root, then: # apt-get install gdm # dpkg-reconfigure lightdm then selected gdm from the list, and restarted my system. # reboot
This time a login screen appeared successfully and I was able to login to my system. GDM display manager is good but I want to use lightdm since gdm doesn't allow me to log in automatically although I tried to change automatically login option from 'All Settings -> User Accounts'.
Please suggest me how can I fix this problem so that I can use lightdm. Any help will be greatly appreciated.