Try forcing feature level by adding this env var to game's launch options on Steam: VKD3D_FEATURE_LEVEL=12_2 %command%
If that doesn't work, try 12_1 instead.
I also recommend to use mesa git for Intel Arc.
doesnt work, tried several methods that working on my gtx 1070 with no luck
already tried mesa-git and it doesnt changed anything.
seems to me, that there is functionality missing in vkd3d, but i'm bad at reading logs :)
maybe it's missing in mesa idk, hope to get pointed in the right direction ^^
I don't really see why this wouldn't work, but if there's a feature that UE5 requires and isn't supported by ANV then we're kind of screwed anyway.
Can you post your vulkaninfo output?
I have the same problem on Arc A750. Most UE5 games have a Fatal error that can be easily resolved by adding force_vk_vendor=-1 %command% to the launch options (this works for both dx12 and dx11). But if the error appears as described above, then nothing can be done. The video card itself can work with dx12 in Linux, but for some reason not all UE5 games want to do so, and this is most likely a proton problem
i opened also a issue about it at mesa. lets see where it goes
https://gitlab.freedesktop.org/mesa/mesa/-/issues/11469
Copying my comment in the mesa issue for visibility
The general crash when UE 5.1+ games see Intel have been fixed on Proton Bleeding Edge. Besides that the dx12 error will be solved by https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32676
Just compiled mesa from git today and all UE5 Games which previously refused to start (dx 12 not supported error) are working now.
Havent tested much gameplay yet, currently checking how performance changed and if gfx glitches occure in other games.
steamcommands: "gamemoderun mangohud %command%"
current system config:
OS: Arch Linux
KERNEL: 6.13.4-zen1-1-zen
CPU: AMD Ryzen 7 5800X 8-Core
GPU: Intel Mesa Intel Arc A770 (DG2)
GPU DRIVER: 4.6 Mesa 25.1.0-devel (git-826acf5dce)
RAM: 32 GB
Just compiled mesa from git today and all UE5 Games which previously refused to start (dx 12 not supported error) are working now.
This fixed Claire Obscur: Expedition 33 for me (graphical errors, cutscenes were red screen, and wouldn't let me select XeSS in graphics).
Likely other games too when I get a chance to test. Had issues with certain UE5 games here and there.
proton 9.0-2x1 2024-07VKD3D_FEATURE_LEVEL=12_2x1 2024-07gamemoderun mangohud %command%x1 2025-02force_vk_vendor=-1 %command%x1 2024-07VKD3D_FEATURE_LEVEL=12_2 %command%x1 2024-07
Cant get any UE5 Games to work if DX12 is used (idk if there are any with DX11).
Game boots, EAC boots and then presents me with this popup window. (it's the same with Remnant II).
Software information
The First Descendant
System information
Log files
steam-2074920.log
update
Mesa 25 seems to fix this issue, currently testing the git version until Arch drops mesa 25