6 years ago
  HP PAVILION (AMD Athlon 64 x 2 Dual Core Processor 3800+)
  Mint (older version)
  Works perfectly
What doesn't work:

1. Initial problems getting usb drive with Mint 17.1 to boot. .
2. Also problems with Chromium browser and YouTube.

What was done to make it work:

1. Eventually found the answer somewhere totally obscure online (press Tab key, type 'list', press enter).

2. Solved by downloading pepperflash and ubuntu restricted extras.

Additional notes:

1 above drove me nuts - yet so simple in the end! This workaround should be made known somewhere obvious. Apparently, the problem is common with desktop installations.