No capture for Portal 2 with the native Linux runtime

[ncfavier]

Describe the bug

When running Portal 2 with the native Linux runtime 1.0 (scout), the game is not captured (does not show up at all in OBS). I've tried the following launch commands:

• env OBS_VKCAPTURE=1 %command%
• obs-vkcapture %command%

With the Proton Experimental runtime, it works fine.

System (please complete the following information):

• OS: NixOS unstable
• GPU: AMD Radeon RX 7600
• Mesa version: 25.3.1
• obs-vkcapture version: 1.5.3

OBS log:
https://obsproject.com/logs/x7qNc1QTz0d5okC0

Game log:
No terminal output, I don't know where to find the log.

[devek1]

Portal 2's native Linux version uses OpenGL by default, to get around that using either of the following should work:
-Vulkan rendering: env OBS_VKCAPTURE=1 %command% -vulkan
-OpenGL-compatible capture: obs-gamecapture %command%

[ncfavier]

The first one crashes immediately, the second one does not capture.