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dgr4it's avatar
dgr4it
Iron Contributor
Jun 25, 2020

Touchback not working with USB-C display (Surface Hub 2S)

We just got two Surface Hub 2S at work, but I've been unable to make touch-back work on a single USB-C cable.   https://docs.microsoft.com/en-us/surface-hub/surface-hub-2s-connect, it's supposed to...
cezarcretu's avatar
cezarcretu
Icon for Microsoft rankMicrosoft
Jun 25, 2020

Hello Daniel,

 

This is something we're looking at. Seems like this happens after the device resumes from sleep. Can you try to restart just to confirm that you have the same behavior?

 

Thank you,

Cezar

  • dgr4it's avatar
    dgr4it
    Iron Contributor
    Jun 25, 2020
    Should I keep the USB-C plugged when restarting ?
    Or simply ensure I plug the USB-C cable after a fresh start ?
    (I'll check it out tomorrow morning Japan time)
    • cezarcretu's avatar
      cezarcretu
      Icon for Microsoft rankMicrosoft
      Jun 25, 2020

      hi dgr4it,

       

      If I understood it well, plug in the USB-C after the restart but would help if you could try both

       

      Thank you,

      Cezar

       

      • dgr4it's avatar
        dgr4it
        Iron Contributor
        Jun 27, 2020

        Thanks for the info cezarcretu 

        I'm afraid however, tried both ways with both computers (only one cable this time around).

        1. Plug the USB-C cable after a fresh start (power from shutdown)
        2. Plug the USB-C while shutdown, then start the Surface Hub 2S

        Unfortunately, still the same issue (have mailto:4k@60Hz video and power delivery, but touchback not working despite being recognize as "Guest Touchback Board" in the PC side.

         

        Wonder if there might be a firmware update dealing with these issues, but since I have no admin rights to the Hub it's hard to tell if it's up to date or not.

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