Hyprland becomes sluggish after ~40-120 min of playing with PROTON_ENABLE_WAYLAND=1

[byddha]

Hyprland version

Hyprland 0.52.1 built from branch v0.52.1 at commit 967c3c7 clean (version: bump to 0.52.1).

Regression

Yes, same setup (GE-Proton + PROTON_ENABLE_WAYLAND=1) worked fine in the past. Tested with both GE-Proton10-14 (which I know worked back in August) and latest GE-Proton10-25, same issue with both. I'm unsure if the geometry spam happened in the past too, but the system never slowed down even after long gaming sessions with the exact same game, protonge version.

Describe the bug

When running games with PROTON_ENABLE_WAYLAND=1 (required for HDR without gamescope), after 40-120 minutes of gameplay Hyprland becomes sluggish. I start noticing it as mouse input in game becoming worse and worse over time. At the same time, Hyprland's CPU usage spikes.

If I switch workspaces while the game is running, Hyprland CPU usage goes to a smaller value, then spikes again when I focus the game. Restarting the game doesn't help, only restarting the Hyprland session fixes it temporarly until it happens again.

Even after closing the game, the system stays unstable, for example Hyprland animations become very sluggish until I restart the session. I've tested with multiple different games including Cyberpunk (which I know for sure worked fine before, with the exact same ProtonGE version), so it is not game specific.

I don't know if it helps, but I noticed that Hyprland logs this at frame rate (for example, 103 fps = 103 such logs/sec).

[LOG] [CXDGSurfaceResource] xdg_surface 55f2c442014 requests geometry 0x0 3440x1440

This spam happens from the start of the game, not just when it gets slow. I have no idea if this is the cause of the CPU increasing in usage over time, but it also only happens with PROTON_ENABLE_WAYLAND=1 enabled.

With HDR enabled I also see this spam alongside the geometry erquests:

[INFO] [CM] Updating HDR metadata from surface
[LOG] [AQ] drm: Modesetting DP-3 with [email protected]

But the issue reproduces even without HDR, as long as PROTON_ENABLE_WAYLAND=1 is set. I've tried playing with an extremely minimal hyprland config, but it made no difference.

Reproduction steps

1. Use ProtonGE with PROTON_ENABLE_WAYLAND=1 in launch options
2. Launch any game and play for 40-120 minutes
3. Observe Hyprland becoming sluggish (noticeable as worsening mouse input) and CPU usage increasing over time

System info and config

systeminfo.txt