Ubuntu 14.10 no desktop screen available no icons and minimize buttons as well.

[vishal_]

I was playing around with ubuntu. Due to overflow of memory everything disappeared. Later cleared memory and logged in just to see the top bar and side bar and minimize close buttons vanished.. I followed some online suggestion and typed in "sudo lightdm stop" just to see even the firefox and everything except the terminal vanish. "Sudo lightdm start" isnt bringing back things. And for everything it says error:cannot open display
I have somehow got this terminal running.. Need some help.
I tried unity --reset
It says error: the reset option is now deprecated

[grahammechanical]

Things change over time. Two useful commands to make a note of are


dconf reset -f /org/compiz/

to reset compiz and to restart Unity


setsid unity

then there is


unity --reset-icons

Regards.