What I initially wanted to do was to install Steam.
For that, it seems like I need to install the proper graphics driver for my system.
My laptop is ASUS K55V.
It has got an NVIDIA GeForce GT 630M I suppose.
So, I checked the System Details and it was showing Graphics Driver Unknown.
I googled for the solution to this and got to this page:
So, I installed mesa-utils and rebooted.
But now it shows this:
Can I get some help please?
Also, I am a linux noob. So, please give the detailed explanation if possible.