LMUFFB working on Linux (Proton)

[pabeernosmatao]

Hi! I just wanted to share that I managed to get LMUFFB working on Linux with Le Mans Ultimate.

My setup:

CachyOS
Steam
GE-Proton10-34-LMU-hid_fixes
Fanatec CSL DD 8 Nm

The key is to launch LMUFFB using the same Proton prefix as Le Mans Ultimate.

I launch it with the Wine binary included in the Proton installation and point it to LMU's compatdata prefix.

Everything appears to work correctly:

✅ Connects to LMU
✅ Exclusive mode works
✅ In-game FFB is blocked correctly
✅ Force feedback is generated by LMUFFB
✅ Fanatec wheel works correctly

I also have CrewChief and SimHub running from the same Proton prefix without issues.

If anyone is interested, I can post the launch script.