I bought a Toshiba Satellite L50D-B AMD Ram 8 with :
AMD A6-6310 APU
AMD Radeon R4 Graphics card.
Display 15,6 with 1366X768 resolution . Orientation Landscape
Before installing Linux Mint 17 I tried to run the USB key.
Surprise. There is a graphic card problem.
Not easy to describe, here the video :https://drive.google.com/file/d/0Bx5xKJ ... sp=sharing
May be a driver is missing .
The LinuxMint on my bootable key was the first LM 17 official release.