I have ubuntu 12.04 installed and it was working fine. But today suddenly it stopped responding, then I restart it and gives a window
The System is running in low graphics mode, Your Screen, graphics card,and input device settings could not be detected correctly. You will need to configure this yourself.
I have seen many people suggest for different commands to resolve this issue. But I can't try any of them as my laptop doesn't start. Just show the error message and nothing happens. I also tried the recovery mode but same thing happens.
How can I resolve this issues.