HowTo: Enable Variable refresh rate (FreeSync)

Alexander88207

Alexander88207

Enthusiast
Requirements:

- Mesa 19 (graphics/mesa-libs & graphics/mesa-dri 19) or better

- x11-drivers/xf86-video-amdgpu 19 or better

- linux-5.0-drm or better (That would be graphics/drm-fbsd13-kmod or better at this time of writing)

- An AMDGPU & Monitor with FreeSync Support (Obviously)

Enabling FreeSync:

  1. Create an /usr/local/etc/X11/xorg.conf.d/amdgpu.conf with the following content:
Code: 
Section "Device"

Identifier "Card0"

Driver "amdgpu"

Option "VariableRefresh" "true"

EndSection

2. Reboot and check if VRR/FreeSync is enabled

You can check if its enabled by running xrandr --prop from x11/xrandr in the terminal and see if vrr_cable = 1


ysxjhwepulw41.jpg


And/Or taking a look at /var/log/Xorg.0.log and see if you can find (**) AMDGPU(0): Option "VariableRefresh" "true"

That's it & have fun!
 
Last edited:
Update: Variable Refresh Rate have been added in Xorg 21.1.0.

That means if that version arrives the ports then xf86-video-amdgpu gets optional but still have to enabled manually with an config that is using Driver "modesetting" .

Also compositors have to be turn off!
 
Last edited:
I did as you suggested and removed TearFree, with just VariableRefresh on. It seems to work. :)
 
You must log in or register to reply here.
Back
Top