protonscr

[Titan Quest - AE] Proton 10 regression when attempting to switch out of the game

protonclosed
ValveSoftware/Proton#8733 · opened 2025-05-25 by git-f0x · updated 2025-05-25 · 1 comments · github
Ggit-f0x 2025-05-25 github

OS: Bazzite 42
Kernel: 6.14.6-105.bazzite.fc42.x86_64
Mesa: 25.1.0
GPU: Radeon RX 570
Proton version: Experimental, also happens on Proton GE 10.3 (doesn't with wine wayland)

When pressing the Super key (or Alt Tab) on Proton 10 in Titan Quest Anniversary Edition, the interface that should show up only flashes briefly, and nothing can display over the game window.
The game even prevents switching to a different virtual desktop (at least on Plasma), immediately switching back to the desktop the game is on.

Some other games also have slightly weird behavior, but aren't disruptive (e.g. Grim Dawn has a very weird minimize animation when pressing Super, and the Civ VI window occasionally shrinks slightly to the top right with the same action).

It doesn't seem to be a dxvk regression (checked multiple older versions). On Proton 9, things work as expected.

Kkisak-valve maintainer 2025-05-25 github

Hello @git-f0x, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/567#issuecomment-2907841754.

Upstream links