---
title: WMR Lighthouse (no SteamVR)
weight: 9000
---
# WMR Lighthouse (no SteamVR)

This describes a WMR Lighthouse setup using the `steamvr_lh` driver.

It's different from [WMR Lighthouse](/docs/steamvr/wmr-lighthouse/)

This doesn't use steamvr to re-map the head from some lighthouse tracking device.
Instead it does this natively, so SteamVR is only necessary for the proprietary `steamvr_lh` driver.

For now this is a hacky approach as Monado's builders don't support the functionality yet:

* https://gitlab.freedesktop.org/monado/monado/-/issues/459
* https://gitlab.freedesktop.org/monado/monado/-/issues/288

I made this for WMR as I have a reverb G2 & vive 1 (used only for it's 2 watchman dongles)

you can easily adapt this for other headsets in a hacky way, until these issues are closed.

I use this as my only vr setup on arch and it works fine.

## Setup:
Setup your lighthouse system on SteamVR Windows. The Linux SteamVR version does not work well. On windows: Update everything, pair everything & setup your room boundaries.

Linux setup:
* install steam
* Download SteamVR on Steam (try non beta version first)
* configurations from windows copied over

## How to copy your Windows steam configurations to Linux
* mount your windows drive (e.g. at `/mnt`)
* `cp "/mnt/Program Files (x86)/Steam/config" ~/.steam/steam/ -r`

## Build
Grab my custom Monado

`git clone https://gitlab.freedesktop.org/Zuzka/monado`

(if it's too old, try to merge upstream into it and fix it)

Ensure you have all required dependencies installed beforehand (Envision or Monado docs might help)

`cmake -G Ninja  -B build -DCMAKE_INSTALL_PREFIX=/usr -DXRT_BUILD_DRIVER_SURVIVE=0 -DXRT_BUILD_DRIVER_VIVE=0 -DXRT_BUILD_DRIVER_STEAMVR_LIGHTHOUSE=1`

`sudo ninja -C build install`

You may get this error:

```
CMake Error at cmake/OptionWithDeps.cmake:141 (message):
  XRT_BUILD_DRIVER_STEAMVR_LIGHTHOUSE specified but not available: failed
  check XRT_HAVE_STEAM
Call Stack (most recent call first):
  CMakeLists.txt:327 (option_with_deps)
```

In which case it's okay to just comment (put # at beginning of line) of line 372.

## USAGE:
* set following environment variables in your e.g. bash_profile:
* export LH_DEVICE_SERIAL="{YourSerial}"
* get the actual tracking device serial via `motoc monitor` or by another way.

## USEFUL RESOURCES:
* https://monado.freedesktop.org/getting-started.html#installation-from-source
* https://monado.freedesktop.org/valve-index-setup.html
* check the commits on my branch for more info https://gitlab.freedesktop.org/Zuzka/monado
* vive tracker 3.0 3d printable mount
  * model: https://www.printables.com/model/107654-hp-reverb-g2-vive-tracker-mount