I'm new to eOS. Sorry for my probably bad english, i'm french ^^".
When I'm trying to watch videos (personal videos or youtube), the screen is in a strange red style.
If the quality is very low (like 240p) i can watch without this effect.
After many hours of research, the problem is probably because my PC has 2 gpu, and use the wrong one. Or because of old drivers.
Here some terminal commands i found on topics
As you can see on the second one, I have a Radeon R7 which, i think, is not used.
Do you know what i have to do ? How can i change the gpu used ? Or which driver i have to install ?