protonscr

[Regression | Proton 11 beta & experimental] Gamescope game focus issues

protonclosed
ValveSoftware/Proton#9779 · opened 2026-05-13 by bblacher · updated 2026-05-13 · 2 comments · github
Bbblacher 2026-05-13 github

gamescope issue: https://github.com/ValveSoftware/Proton/issues/9780

When starting a game from within a gamescope -e session, the game gets focused correctly, opening the Steam Overlay and closing it again causes the game to loose focus. Clicking with the mouse once re-focuses the game.

Forcing proton to 10.0 fixes the issue.

More details: (mostly copied from the issue linked above)

Are you using any gamescope patches or a forked version of gamescope or Proton?

  • [x] The issue occurs on upstream gamescope & Proton without any modifications

Current Behavior

Tested with Hitman 3 and Hades:

When starting a game, the game gets focused correctly, opening the Steam Overlay and closing it again causes the game to loose focus. Clicking with the mouse once re-focuses the game.

Steps To Reproduce

  1. launch with gamescope -e -H 2160 -r 120 -O DP-1 -- steam -gamepadui -steamos3 (from tty)
  2. Launch a game using Proton 11 or experimental
  3. Open the Steam Overlay using the Steam Controller "Steam Button" or the PS Button on a Dualsense
  4. Return to the game

Hardware information

- Distro: Arch Linux
- CPU: AMD Ryzen 9 7950X
- GPU: AMD Radeon RX 7900 XTX
- Driver Version: Mesa 26.1.0

Software information

- Desktop environment: gamescope (from tty - drm mode)
- Session type: gamescope
- Gamescope version: gamescope version 3.16.23+ (gcc 15.2.1)
- Gamescope launch command(s): gamescope -e -H 2160 -r 120 -O DP-1 -- steam -gamepadui -steamos3
- Proton version: Proton experimental as of 2026-05-13 or Proton 11.0-beta2

Which gamescope backends have the issue you are reporting?

  • [ ] Wayland (default for nested gamescope)
  • [x] DRM (default for embedded gamescope, i.e. gamescope-session)
  • [ ] SDL
  • [ ] OpenVR

Logging, screenshots, or anything else

I am also noticing that steam big picture itself is focused in a weird way on startup:
The window itself is focused, controller input works, but the "selection border" in big picture is not showing, the play button on the game page is not highlightable. Pressing the Steam button twice fixes this.

Kkisak-valve maintainer 2026-05-13 github

Hello @bblacher, there's no point in fragmenting the discussion of this issue across multiple issue reports. Closing as a duplicate of #9780.

Bbblacher 2026-05-13 github

@kisak-valve You're correct, but this seems to be a Proton issue. Please re-open this one and close the gamescope one.

EDIT: Didn't see you transferred the issue. Sorry.

Proton versions

Upstream links