Using null driver in SteamVR on Linux

gistfile1.txt

If you have other steamvr plugins intalled, e.g. the osvr plugin in /usr/lib/openvr/osvr/, remove it temporarily to avoid with annoying behavior like slow osvr startup:
~/.local/share/Steam/SteamApps/common/SteamVR/bin/linux64/vrpathreg removedriver /usr/lib/openvr/osvr

If you do want to use it later, enable it again:
~/.local/share/Steam/SteamApps/common/SteamVR/bin/linux64/vrpathreg adddriver /usr/lib/openvr/osvr

Set up ~/.local/share/Steam/config/steamvr.vrsettings like this:

{
   "driver_lighthouse" : {
      "enable" : false
   },
   "driver_null" : {
      "enable" : true
   },
   "driver_oculus" : {
      "enable" : false
   },
   "driver_oculus_legacy" : {
      "enable" : false
   },
   "driver_null" : {
      "enable": true,
      "id": "Null Driver",
      "serialNumber": "Null 4711",
      "modelNumber": "Null Model Number",
      "windowX": 100,
      "windowY": 100,
      "windowWidth": 800,
      "windowHeight": 600,
      "renderWidth": 800,
      "renderHeight": 600,
      "secondsFromVsyncToPhotons": 0.1,
      "displayFrequency": 60
   },
   "steamvr" : {
      "enableHomeApp" : false
   }
}

thanks!