I just installed Ubuntu 15.04 on a brand new Lenovo G50 laptop (with AMD Radeon graphics). I installed VLC to play HD video. Irrespective of the type of video, I am seeing green spots in the videos. See screenshot below.
I tried the default player in Ubuntu and it is also giving the same error. Do I need to configure X11 ? Or is there any specific configuration needed for the AMD graphics card?
Tools -> Preferences -> Video -> Display
Uncheck "Accelerated Video Output(Relay)" as mentioned here