I just recently built my own computer, and I am now trying to run Ubuntu 12.04 LTS on it from a flash drive with "casper-rw persistence". I'm very new to the Ubuntu operating system, so I was exploring the settings when I noticed something after using mesa-utils to get my graphics driver recognized.
Ubuntu thought I was using something called "Gallium 0.4 on AMD CAPE VERDE", which is inaccurate as I'm using a Gigabyte Radeon HD 7770 GHz Edition 1GB video card. So, I went to the Additional Drivers section to download a proper update (as I saw that updating driver's manually wasn't recommended by most on this site)... and found 3.
"Video driver for the AMD graphics accelerators" was listed three times on the list, and with the exact same description on each. I don't know which one to pick, and I would just pick randomly but the last time I did that on this computer it... started having a LOT of problems, including not showing any graphics, not allowing me to click "Try Ubuntu" when I start the computer, and even not loading at all as things got worse.
Is there a way to tell the difference between these three updates? Should I install something manually? And from where?