I have Lenovo G500H with Radeon HD8570M (and Intel) graphics card and my goal was to get OpenGL 4.+ version to be able to use double precision variables in shading language. Long story short, after reinstalling Ubuntu... 5 times? Now I am literally too scared to install any of fglrx driver, or AMD official update
Why? Because any time I do this, I get low graphics mode. When I use
sudo apt-get install I can just remove these drivers and everything is back to normal. When I tried to uninstall the official AMD driver, best I got (after blank screen and graphics artifacts during starting OS) was broken gnome screen.
I also run Windows 7 (which I use for gaming), here I have newest Catalyst and when I play games the system uses the Radeon card, no problem here. So I don't think my Radeon card is broken.
Ehm - any ideas how I can update OpenGL WITHOUT having to reinstall Ubuntu again? ;)