System Specs:
CPU - 5900X
GPU - 6800XT w/AMDVLK v2023.Q2.3 driver
OS - Fedora 38 KDE
In Proton 8, some games are hitting the assertion in winevulkan:
Assertion failed: !status && "vkDeferredOperationJoinKHR", file ../src-wine/dlls/winevulkan/loader_thunks.c, line 3128 which causes the game to abruptly quit.
Note: In order to get the VK call that causes the assert, you need to use Proton 8 Experimental [Bleeding Edge], otherwise you will just get a generic assert message.
In my case, Doom Eternal and Portal RTX (TraceRay mode) will hit the assertion consistently. For Doom Eternal, I can fallback to Proton 7 and AMDVLK works fine. For PortalRTX I can only fallback to RayQuery mode for it to work.
I'm not really sure where the regression lies with Proton 8 or AMDVLK. Speaking with Proton devs, they say that earlier versions of Proton were ignoring these fails but with Proton 8 they are no longer ignoring them hence why they are appearing now. They are pointing to AMDVLK as the cause. And FWIW, MESA's RADV driver implements vkDeferredOperationJoinKHR as a nop and it doesn't hit the assert.
*To configure specifc RT modes for PortalRTX the following options in the rtx.conf file in the game directory need to be modified:
System Specs: CPU - 5900X GPU - 6800XT w/AMDVLK v2023.Q2.3 driver OS - Fedora 38 KDE
In Proton 8, some games are hitting the assertion in winevulkan:
Assertion failed: !status && "vkDeferredOperationJoinKHR", file ../src-wine/dlls/winevulkan/loader_thunks.c, line 3128
which causes the game to abruptly quit.Note: In order to get the VK call that causes the assert, you need to use Proton 8 Experimental [Bleeding Edge], otherwise you will just get a generic assert message.
In my case, Doom Eternal and Portal RTX (TraceRay mode) will hit the assertion consistently. For Doom Eternal, I can fallback to Proton 7 and AMDVLK works fine. For PortalRTX I can only fallback to RayQuery mode for it to work.
I'm not really sure where the regression lies with Proton 8 or AMDVLK. Speaking with Proton devs, they say that earlier versions of Proton were ignoring these fails but with Proton 8 they are no longer ignoring them hence why they are appearing now. They are pointing to AMDVLK as the cause. And FWIW, MESA's RADV driver implements
vkDeferredOperationJoinKHR
as a nop and it doesn't hit the assert.*To configure specifc RT modes for PortalRTX the following options in the
rtx.conf
file in the game directory need to be modified: