Valve index HMD error 108. Headset is on idle mode (blue) won't detect on steam vr. when I turn off direct display mode the headset will display my screen and turn green
6 Fixes for Steam VR Headset Not Detected - Driver Easy
Fix SteamVR Error 108 the right way
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How to Solve: SteamVR Error 108 – Three Methods
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HTC Vive not detected: error 108 in Ubuntu 18.04 · Issue #156 · ValveSoftware/SteamVR-for-Linux · GitHub
Fix: HTC Vive Error 108 and Error 208 on SteamVR
Error 108, but I can't tell if it's SteamVR or VRidge : r/vridge