This one has got me stumped. Upon the launch of any VR title, the application will work as expected for 2-3 minutes before the headset will " white out " and go into track loss according to the Steam VR monitor. My fix for this is to shut down Steam VR ( which will also shut down the running VR title ) then, simply relaunch the title. After the second launch of the title in question, the system will perform flawlessly for as long as I wish to play it. ( have gone several hours without a single hiccup afterwards ) The issue only manifests itself during the initial launch and is reproducable every time the VR system is fired up for the first time, so this puzzles the hell out of me. Now, this may just be a coincidence, but after reviewing the vrserver logs, the loss of track typically happens within 1-3 minutes after the system updates the lighthousedb.json file. Eg: Wed Jan 04 2017 18:34:50.934 - lighthouse: Saved LighthouseDB rev 869 to D:\Steam\config\lighthouse\lighthousedb.json Wed Jan 04 2017 18:35:07.258 - lighthouse: LHR-5F8DBC09 H: SendOnPoseChange took 0.805801ms Wed Jan 04 2017 18:35:24.100 - lighthouse: LHR-5F8DBC09 H: SendOnPoseChange took 0.552742ms Wed Jan 04 2017 18:36:00.967 - lighthouse: LHR-5F8DBC09 H: Resetting tracking: no optical samples for 2015ms Wed Jan 04 2017 18:36:00.967 - lighthouse: Stopped tracking with universe 1480121868 Wed Jan 04 2017 18:36:06.067 - lighthouse: LHR-5F8DBC09 H: No IMU data in past 5 seconds Wed Jan 04 2017 18:36:06.067 - lighthouse: LHR-5F8DBC09 H: No optical frames in past 5 seconds At which point I have to shutdown SteamVR and reset the entire thing. Afterwards, however, it runs just fine. The only other oddities I've noted in the logs that I would potentially consider strange are: Sat Jan 07 2017 14:15:14.873 - lighthouse: LHR-5F8DBC09 H: Trying to start tracking from base 446B0378: Available samples not sufficient for booting (hits: 2+1) and Sat Jan 07 2017 15:23:40.738 - lighthouse: LHR-5F8DBC09 H: Dropped 2977 back-facing hits, 10 non-clustered hits during the previous tracking session Thoughts ?
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