Shared IPC Compositor Invalid (307) and Impossible to connect to the screen headset ? (error 496)

[MrBretze]

Hello, after the installation of the driver, i have this error:

If you want more information, tell me, i don't know what I can send more

[CertainLach]

I think it is this mesa regression: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38987

The fix is included in Mesa 25.3.3

[MrBretze]

Normally, I use the Mesa 25.3.3 driver

[MrBretze]

After some test i have a new error but now the vr headset is detected by Steam and SteamVR !

i guess i already view the error on a other issue:

if i add the wine PATH i don't have the same error:

and if a just click on okay i got this: (i cant start the room calibration)