Solved Pimax Crystal Light: Tracking Fails on Main PC Until Camera Device Reset (Works on Another PC) - Seeking USB/UVC Init De


mortadello

Member
Local time
12:16 AM
Posts
2
OS
windows11
Problem
I am experiencing a repeatable issue on my main PC where the Pimax Crystal Light headset's tracking fails to initialize unless I manually disable and then re-enable the camera device in Windows Device Manager.

Actual Behavior
* The Pimax Crystal Light headset is detected normally by the system.
* Tracking is completely non-functional upon initial connection or system boot.
* Manually disabling and then re-enabling the camera device in Windows Device Manager immediately resolves the tracking issue.
* This behavior occurs consistently with every system boot or headset reconnection.

Expected Behavior / Comparison
* The same Pimax Crystal Light headset and its associated cables function perfectly, with immediate tracking initialization, when connected to a second PC.

What I Have Tried
* Tested different USB ports and USB controllers (direct to motherboard, no external hub used).
* Disabled all USB power management settings.
* Removed all "phantom" or hidden devices from Device Manager.
* Performed a clean reinstallation of the Pimax runtime software.
* Performed a clean reinstallation of AMD chipset drivers.
* Verified that both the problematic main PC and the working second PC are running the same Windows version and utilize the identical usbvideo.sys driver.

Extra Details
my log files:

My main system is heavily configured with multiple USB and PCIe devices, including a capture card. I suspect this issue may be related to timing during USB/UVC initialization or a conflict within the Windows camera stack.

I am not seeking basic troubleshooting steps, as I have already performed extensive testing. I am specifically trying to understand why the camera endpoint fails to initialize properly on this particular system only.

If you have experience debugging complex USB, UVC, or VR device initialization issues, I would greatly appreciate any insights or direction you can provide.

My Pimax Crystal Light - Google Drive
 
Windows Build/Version
11 pro 25H2 262600.8246

My Computer

System One

  • OS
    windows11
    Computer type
    PC/Desktop
    CPU
    9950x3d
    Motherboard
    MSI MEG-X870E-GODLIKE
    Memory
    128gb ddr5
    Graphics Card(s)
    asus astral 5090
the fix: I completely formatted the hard drive and reinstalled the OS from scratch. we will never know what was the pathology behind this bug...
 

My Computer

System One

  • OS
    windows11
    Computer type
    PC/Desktop
    CPU
    9950x3d
    Motherboard
    MSI MEG-X870E-GODLIKE
    Memory
    128gb ddr5
    Graphics Card(s)
    asus astral 5090

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