VK_EXT_physical_device_drm

[grappas]

❯ MANGOHUD=0 gamescope -H 1080 -W 1920 -w 3840 -h 2160 -- openarena
No CAP_SYS_NICE, falling back to regular-priority compute and threads.
Performance will be affected.
wlserver: [backend/headless/backend.c:68] Creating headless backend
vulkan: selecting physical device 'AMD Radeon RX 6750 XT': queue family 1
vulkan: physical device does not support DRM format modifiers
vulkan: physical device doesn't support VK_EXT_physical_device_drm
Failed to initialize Vulkan

amdgpu mesa drivers and amdvlk is installed.

❯ pacman -Q | grep amd
amd-ucode 20221214.f3c283e-1
amd-vulkan-prefixes 1-1
amdvlk 2022.Q4.4-1
lib32-amdvlk 2022.Q4.4-1
xf86-video-amdgpu 22.0.0-1

[Samsagax]

Uninstall AMDVLK it will only cause you pain. Gamescope doesn't support it, is not feature complete and RADV is the way to go.

[grappas]

Uninstall AMDVLK it will only cause you pain. Gamescope doesn't support it, is not feature complete and RADV is the way to go.

Unfortunately RADV doesn't support RT in some games and it is forced by gamescope. But yes, you're right. RADV is required.