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.

enter image description here

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

enter image description here enter image description here

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 ?

  • Please check this article from linuxconfig. I think you better check the original article there as it will be so huge to add here as a solution.
    – Hasan
    Jan 28, 2019 at 8:43

2 Answers 2


Thanks a lot ! I did many research (and re-install ^^") before seeing your answer... and i found a solution which, i think, is interesting

When you're installing Elementary OS, he ask if you want to "Install third-party software for graphics and Wi-Fi hardware, Flash, MP3 and other media".

That's the "problem". Without this checked, i had no problems for graphics.

I was happy until the moment I would install another thing. It was theubuntu-restricted-extras package. And then the problem was here again.

I think it's an installation called when you tick the checkbox before (confirmation ?)

So i installed synaptic, and i removed ubuntu-restricted-extras (and ubuntu-restricted-addons also).

The problem was always here but with sudo apt-get autoremove and a reboot, it was OK. Problem solved.


install the latest MESA drivers, add the official repositories and them open terminal and do:

sudo apt update && sudo apt upgrade

sudo apt install software-properties-common

sudo add-apt-repository ppa:ubuntu-x-swat/updates

sudo apt update

sudo apt upgrade

sudo apt install libvulkan1 mesa-vulkan-drivers vulkan-utils

They work very well, even in games. if u want privative drivers i have a video for install privative drivers: https://youtu.be/_zDLT9wQHmU (only if open drivers do not work)

You will also try to install video codec:

sudo apt-get install ubuntu-restricted-extras




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