Dell AW2725DF: VRR not working on wayland

Brief summary of the problem:

VRR does not seem to be working on this monitor in wayland. I have not been able to test on Xorg.

Sway and Hyprland both report the monitor as VRR Capable, and it can be enabled.

Even with sway reporting Adaptive sync: enabled, the monitor does not change refresh rate, it stays locked at 360Hz.

When setting the monitor to 2560x1440@120Hz, to stop it from using display stream compression, the monitor still does not change refresh rate.

I am aware of the issues with direct scanout and mouse cursor messing with VRR in sway, but I can replicate this on an empty workspace, without my mouse cursor moving, and without the app being fullscreen.

Hardware description:

• CPU: AMD Ryzen 7 5800X3D
• GPU: AMD RX 6700 XT
• System Memory: 32GiB
• Display(s): AW2725DF
• Type of Display Connection: DP

System information:

• Distro name and Version: Archlinux
• Kernel version: archlinux 6.7.5-arch1-1
• AMD official driver version: mesa 24.0.1
• Sway: 1.8.1
• Wlroots: 0.16.2

How to reproduce the issue:

1. Launch sway
2. Run MANGOHUD_CONFIG="fps_limit=57,no_display" mangohud vkcube and move vkcube on a workspace alone. This also works with glxgears.
3. Run drm_monitor
4. Notice the refresh rate of the monitor is still 360Hz, instead of the expected 57Hz

I have tested this on both sway and hyprland. I have also verified that doing this on my second monitor (LG 27GL850) works correctly.

Log files

aw2725df-edid

drm_info see connector 1