Call of Duty 4 Locked at 60Hz Refresh Rate (7940)

[Odzinic]

I am unable to change the refresh rate for both the singleplayer and multiplayer Call of Duty 4. In the settings, the default is 60Hz and does not change on click even though it is being played on a 144Hz monitor. I have attempted disabling non-144Hz monitors but the issue remained. Using Xorg, Proton 3.7-3, nVidia 396.54 driver on Kubuntu 18.04.

[shoober420]

Compatibility Report

• Name of the game with compatibility issues: Call of Duty 4: Modern Warfare
• Steam AppID of the game: https://steamdb.info/app/7950/

System Information

• GPU: GTX 760
• Driver/LLVM version: NVIDIA 440.59
• Kernel version: 5.5.6
• https://github.com/shoober420/linux-scripts/blob/main/home/shoober420/sysinfonvidia
• Proton version: 5.0-3

LOG MP: steam-7940.log

LOG SP: steam-7940.log

Symptoms

Error during Punkbuster install, and its disabled ingame. Everything else works great.