How to fix Vive controllers not working inside SteamVR games
The Ghost Howls
SEPTEMBER 7, 2018
Copy-paste from official Steam Documentation: Hold down the trigger, menu button, trackpad button, AND grip buttons on the controller (everything except the system button). Leap Motion driver and runtime. Razer Synapse. So, choose your poison wisely. Some of them are: Kinect driver and runtime. ASUS AI Suite 3.
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