Compatibility Report

• Name of the game with compatibility issues: Garry’s Mod
• Steam AppID of the game: 4000

System Information

• GPU: NVIDIA GeForce RTX 4060
• Video driver version: NVIDIA-SMI 595.58.03
• Kernel version: 6.19.9-arch1-1
• Link to full system information report as Gist: (paste Steam System Information + Runtime Diagnostics here)
• Proton version: Proton Experimental

Desktop Environment

• DE: Plasma 6.6.3
• WM: KWin

System Specs Summary

• OS: Arch Linux x86_64
• CPU: AMD Ryzen 5 5600
• RAM: 16GB (15895MiB)
• Resolution: 2560x1440
• Shell: bash 5.3.9

I confirm:

• [x] that I haven't found an existing compatibility report for this game.
• [x] that I have checked whether there are updates for my system available.

Symptoms

• Multiplayer is not working correctly (unable to join servers, disconnects, or servers failing to load)
• Fall damage is not functioning (no damage taken from high falls)
• Texture issues (missing textures, purple/black checkerboards, or broken materials/models)
• crashes alot runs out of memory randomly when memory is free.

Reproduction

1. Launch Steam on Arch Linux using Proton
2. Start Garry’s Mod
3. Attempt to join any multiplayer server
4. Observe failure to connect or instability
5. Load into a map and observe missing or broken textures
6. Jump from a high structure
7. Observe no fall damage is applied