Created attachment 132682 [details]
a screen of the bug

as the title said i have problems with colours...everytime i try to watch a
video with a desktop player that actually use gstreamer colours gets all messed
up as you can see from the screen...reported it on federa forums but they told
me it could be a video driver issue since terminal is giving me 

radeon: The kernel rejected CS, see dmesg for more information (-22).

i am using fedora 26 with mesa 17.1.4 and an ati radeon 4570 hd...anything i
can do to solve the problem?