d9vk VS GTAIV.EFLC.FusionFix

Use https://github.com/doitsujin/dxvk

It will be easier to understand if you show me an example of terminal commands under GNU/Linux. I tried to follow his instructions but I don't know one method is good

If you know the directory structure and where the versions of Proton live that Heroic uses, you can also go to the dxvk github page and select the 1.10.3 tar ball, download it and extract it, then manually move the appropriate files to their desired location in the Proton file structure. As with all things like this, .old is your friend if you stuff something up. And yes this does work, I compile my own vkd3d versions and use this approach as a lazy way to test them in Steam.

You can try dkvx Github dkvx , which is a mod that supposedly translates the DX11 stuff to Vulkan but I am not an IT guy so no clue how that works but as I said somewhere else on this thread it helped some people.

Worry not, if you want to play Windows games on Linux, you will use Wine, and Wine has codepaths for very old DirectX versions, it translates it to OpenGL. Alternatively if you really insist there is D8VK although it shouldn't be necessary. For DirectX games that use DirectX 9, 10, or 11 you are covered with DXVK which translates those APIs into Vulkan. And for DirectX 12 games you're back to Wine with WineD3D which will do translation to Vulkan. Technically WineD3D supports every DirectX version, but DirectX 9, 10, and 11 codepaths are half finished, buggy, and less performant, that's why DXVK exists.

You can give DXVK a try.

If you are going to download DXVK, you can download from GitHub.

No, it does not. Check the readme - https://github.com/doitsujin/dxvk DX12 goes through this - https://github.com/HansKristian-Work/vkd3d-proton

I highly recommend using the newest version of ThirteenAG‘s Fusion Fix. It offers options to completely disable the green/orange tint, enables console gamma (less washed out colors), and also gives you the option to enable FXAA. Everything is neatly incorporated into the game‘s menus and works flawlessly with the latest version of GTA IV, no downgrade required.

for the best gta 4 experience, make sure to install fusion fix and the visual mod that restores the console look (including the correct gamma setting)

Highly recommend this for more fixes and a modloader https://github.com/ThirteenAG/GTAIV.EFLC.FusionFix

I use Rivatuner statistics server. It's an app that can limit FPS and has an overlay for games where it shows FPS in corner. It can limit FPS to 1 if you want to. I'd recommend you to install FusionFix since it fixes a lot of issues related to FPS as well as some cutscene tweaks which might fix your issue. https://github.com/ThirteenAG/GTAIV.EFLC.FusionFix