protonscr

GTA4 can't tell if DXVK is working or not

dxvkclosed not a bug
doitsujin/dxvk#5481 · opened 2026-01-28 by 909990999900 · updated 2026-01-28 · 2 comments · github
9909990999900 2026-01-28 github

So for Clarity I'm playing gta 4 with fusion fix which had DXVK built in. So in game you set your graphics to Vulkan and that's supposed to Be it. However I can't for whatever reason get the HUD to work at all and I don't notice a different in performance.

The game made a file called GTAIV.dxvk-Cache but it's only 1kb in size and hasn't updated since I installed the latest fusion fix in October

In the DXVK.conf file I downloaded I set it so that d3d9 would not be lost on focus loss and also set it so the hud should appear by setting the value to 1 but it never works

Instead of dxvk.log like other games I have a GTAIV_d3d9.log

Inside for whatever reason it does not show that it detects my setting to show the hud so I can see DXVKs performance in real time

I've tried to run the game as just Dx9 in the in game settings, but every time regardless when I exit the GTAIV_d3d9.log just updates so I'm not able to use that way to determine if it's actually running Vulkan or not

9909990999900 2026-01-28 github
KK0bin maintainer 2026-01-28 github

Instead of dxvk.log like other games I have a GTAIV_d3d9.log

That's normal. I don't know where dxvk.log could come from but DXVK itself produces logs that have the exe name of the game and the api in the file name.

The log itself looks perfectly fine. It looks like a log that DXVK produces when it works.

If you want to double check, you can set the environment variable DXVK_HUD to 1. (And reboot after that if you're on Windows.) Then there should be a DXVK debug overlay in the game.

Besides that, I don't think there's anything for us to do here.

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