Compatibility Report

• Name of the game with compatibility issues: rFactor 2 Dedicated Server
• Steam AppID of the game: 400300

System Information

• GPU: N/A
• Driver/LLVM version: 4.6 (Compatibility Profile) Mesa 22.2.3
• Kernel version: 6.0.13-300.fc37.x86_64
• Link to full system information report as Gist: Personal SystemInfo
• Proton version: Proton Experimental & System Wine 7.22 & Wine GE 7-35

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

• Dedicated Server hosted on a linux cannot play with a human client >=2 with bots without causing latency issues (over 1000 ping, and constant desync or collision being disabled due to latency and teleporting clients)
• Server shows FPS value of ~300-400
• CPU shows as not overloaded.
• Single client with bots can play just fine

Reproduction

• No GPU (Virtual Server/VM/Dedicated Hardware)
• Linux (Fedora and Arch in our case)
• Install SteamCMD
• Download rFactor 2 Server
• Install Wine or WineGE or Proton
• Install XPRA/Xvfb
• Configure XPRA/Xvfb using one of them for a virtual desktop
• CD to server Bin64 folder
• Use any of the versions of wine to launch Dedicated Server
  "rFactor2 Dedicated.exe" +path=".."
• Add >=6 Bots
• Have ClientA join. ClientA can play
• ClientB joins
• ClientA and ClientB notice huge latency increase (Including ServerConsole) as well as teleporting and Bots crash/ram clients because they can't determine location(s).

Notes

Will attach proton log later, after I install steam on the VPS.