this post was submitted on 23 Aug 2023
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What's your experience with VRR/FreeSync on Linux? (lemmy.ml)
submitted 1 year ago by [email protected] to c/[email protected]
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I've recently got a FreeSync monitor and am still figuring out how to get VRR (variable refresh rate, or "adaptive sync") to work consistently.

I'd love to hear your experience with VRR.

Some of my tests:

Sway

In sway, I set adaptive_sync on for my display, and swaymsg -t get_outputs reports Adaptive sync: enabled

Hyprland

In hyprland, I set vrr = 1 and get similar results as sway -Dnoscanout

  • Fluent motion by default, but moving the mouse introduces stuttering

Gamescope

In gamescope (embedded from VTT, with --adaptive-sync), I get the best results yet

  • Stable fluent motion
  • Mouse doesn't break it

My setup is 6600xt, Gigabyte M28U monitor, Arch 6.1.64-1-lts. I test with vrrtest and with Ghostrunner on wine-tkg-staging-fsync-git 8.13.r7.gc210ef9f-327

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[–] [email protected] 4 points 1 year ago

There's currently a bug with AMDGPU wherein aggressive power management causes constant micro-stuttering and that also appears to break VRR for me.

Set power management to 3D_FULL_SCREEN or VR on the GPU.