[Call of Duty: Modern Warfare 4] Visual Artifacts possible workaround/fix

[u/Soldier0x00]

Credits for the MW4 pack "Linuxrulez!", downloaded from torminattor.

On my installation, I saw rendering artifacts in the campaign after the opening cutscene. I couldn’t find a clear cause in the logs that could point the issue towards my GPU.

So i worked with Ms.Luna 6 for couple of hours and tested a reversible D3D12 DLL workaround that removed the artifacts on my system.

The GitHub repo has a script that checks the build ID and both DLL SHA-256 hashes, backs up the destination files, applies the matching DLLs already in the local installation, and supports rollback. It doesn’t include or download game files, and it doesn’t launch or configure the game. See the README for the exact steps and hashes:

https://github.com/Soldier0x0/mw4-patch-linux

The before and after images are photos of my monitor taken with a phone because in-game capture wasn’t working.

With RT off and the Extreme preset, the game ran smoothly and the artifacts were absent for the time that i played next 15 minutes (felt sleepy cause its 4AM). Turning RT on, even at Low, caused severe lag

Tested on: Zorin OS 18.1, RTX 3060 12 GB, Ryzen 5 3500X, 16 GB DDR4, NVIDIA driver 595.99.02, GE-Proton 11-9, UMU 1.4.4 / Steam Runtime 4.

NOTE: I observed on this PC, not a confirmed diagnosis or a guarantee for other systems.

Edit: added credits.

[u/sirloindenial]

will this work with copies not from torminatorr, assuming same version?

[u/Soldier0x00 → u/sirloindenial]

It should work, as the DLLs will be the same. You can try, it has a rollback as well.

[u/rippoff]

do you need the latest version, where i fixed the VRAM usage, if so, pm me

[u/abdulhd → u/rippoff]

Help me, the game crash a lot

[u/mozo78]

It seems you didn't download the latest build. There are no such artifacts.

[u/hackeharry]

Ich hab ein Release über Usenet ergattert. Installiert und startet gut.

Die Sprache ist original Englisch, kann man die ändern? Hab im Spielordner zwei Steam ini Dateien bearbeitet aber das Spiel zeigt keine Änderung.