protonscr

Assetto corsa evo 0.9 needs VKD3D_CONFIG=force_raw_va_cbv to run

vkd3dclosed
HansKristian-Work/vkd3d-proton#3238 · opened 2026-08-28 by Michael1459 · updated 2026-08-28 · 2 comments · github
MMichael1459 2026-08-28 github

Software information

Assetto Corsa Evo v0.9

System information

RTX5070 610.57.04

Latest version of Evo gives a black screen and hangs at startup.

Proton (v 11 02 - the highest number that steam had at time of posting) Log had err:vkd3d-proton:d3d12_command_signature_init_state_template_dgc: Root parameter 2 is not a raw VA. Cannot implement command signature which updates root descriptor

Googling found a similar bug report for EVE, with Hans saying to add VKD3D_CONFIG=force_raw_va_cbv

That worked fine and the game runs and plays well.

I'm adding this bug report because I believe for the other game Hans added something that meant the force_raw_va_cbv wasn't necessary - and if that's the case, I believe this title needs the same treatment.

If you want or need a full log or more information please ask.
Thanks

HHansKristian-Work maintainer 2026-08-28 github

Does https://github.com/HansKristian-Work/vkd3d-proton/pull/3240 fix it? Not 100% sure about .exe name, but google suggests it's that.

MMichael1459 2026-08-28 github

Many, many thanks I will test ASAP and let you know.

(Yes the exe name is correct apologies for making you search)

edit: Yep, works for me. Many thanks again

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