I have HP Probook 4540s with Radeon graphic card, I downloaded drivers from This site and installed those after reboot I couldnt see my launcher and toolbar but yes i could use few shortkeys, I looked for problem and run that
dconf reset -f /org/compiz/
unity --reset-icons &disown
and this command
sudo apt-get purge fglrx lightdm && sudo apt-get install lightdm ubuntu-desktop
on the terminal, Web Link of the page
after running the last command i restarted and now no GUI comes up its just black command line interface and ask for my user name and password. I have no idea how to get this back to normal Help !
sudo dpkg-reconfigure lightdm
. It should open a colourful screen which will prompt to selectlightdm
. Press enter and restart your system by:sudo reboot
Reply what happens..dpkg-query: package 'lightdm' is not installed and no information is available. /usr/sbin/dpkg-reconfigure: lightdm is not available
and it does nothing on alt+ctrl+f1 to f12 except on f7 it says[ 34.037654] sysRq:help:loglevel (0-9) reBoot crash terminate-all-tasks(E) memory-full-oom-kill(f) kill-all-tasks(I) the-file-system(J)......blah blah
display manager
installed which is causing the problem. Since you're not able to connect with internet, only thing you can do is to download .deb file of any display manager, save it to any pen drive (or any place in your system, in case of dual boot), connect it to your malfunctioned system and install it from there. So only thing I want to know that whether you're able to access any removal drive or not. For that, connect any pen drive and reply if it is able to mount in/media
. Check it by :ls /media
. Reply..