"The system is running in low-graphics mode", how to fix?

Question

linux

Folks, help, error "The system is running in low-graphics mode" in ubuntu 15.10 ... how to fix it????? all after I manually entered these 3 commands "sudo apt-get purge xorg lightdm" , "sudo apt-get autoremove" , "sudo apt-get install xorg lightdm" and after that ubuntu (xfce) did not start .. that I have done this with these commands ?? help! yes, google didn't help.

Answer 1

There is a chain of dependencies A -> B ->
C it cannot work without its dependency.
Then you removed unused elements (on which no one depends), in our case it is A.
You decided to fix everything, and returned B back. it is not needed for B to work.
Bottom line: most likely you have demolished parts of the graphical environment and drivers. Try installing xubuntu-desktop and the driver for your graphics card (if you're using a proprietary one).