Win8.1 WHCK: Sleep and PNP (disable and enable) with IO Before and After (Certification) - MUTT Fail RRS feed

  • Question

  • I found a Win8.1 WHCK: Sleep and PNP MUTT fail.

    The fail detail:

    WDTF_SIMPLE_IO : - Open(MUTT WinUSB (078F)
    USB\VID_045E&PID_078F\5&A1706E7&0&2 ) Failed : MUTT2TCDSimpleIo:
    test devices are not found HRESULT=0x0 - The operation completed successfully.

    WDTF_SIMPLE_IO : Device Status: Status = Phantom - The device instance does not
    exist in the hardware tree at this time

    But I have pluged-in MUTT device.

    Can anyone please help me? Thanks.

    Best Regards.

    Wednesday, October 16, 2013 6:01 AM

All replies

  • The device may be physically connected but it is possible that it is not enumerated. Can you check the device manager when the test logs this error, and update the post? Thanks.

    This posting is provided AS IS with no warranties, and confers no rights.

    Monday, October 21, 2013 8:04 AM
  • I encountered the same symptoms. Attach SUT with MUTT device then enter S4, resume from S4 and SUT will show “USB device can’t recognized”. The Device management show yellow for the MUTT device as"unknown USB device(device descriptor request failed). could you help this?

    Friday, November 29, 2013 5:34 AM
  • If you have not done so already, please download version 1.9.1 of the MUTT
    software package (released October 24th, 2013, link below), and apply the
    latest SuperMUTT firmware to the device.  The latest firmware revision,
    REV_0040, contains improvements in the device stability on certain
    platforms for the WHCK tests.<o:p></o:p>

    If that does not resolve the issue, please let us know and check the following:<o:p></o:p>

    Does the device fail to enumerate after a manual S4 transition, outside of the
    WHCK test?<o:p></o:p>

    At what rate does the failure reproduce?<o:p></o:p>

    Does the failure reproduce after an S3, S5, or CS (Connected
    Standby) transition? (depending on what the platform supports)<o:p></o:p>

    <o:p> </o:p>

    Linked below are instructions for capturing USB tracing.  These traces will be valuable in diagnosing and understanding a failed enumeration.<o:p></o:p>

    <o:p> </o:p>



    Tracing Instructions:


    <o:p> </o:p>

    posting is provided AS IS with no warranties, and confers no rights.<o:p></o:p>

    This posting is provided AS IS with no warranties, and confers no rights.

    Monday, December 2, 2013 6:26 PM