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    • #30887
      Mister SoriceMister Sorice

      I have an ActivConnect G in my classroom. I can use ActivCast from our school’s Windows 10 computers to mirror the display — that works fine. I would like to extend the display, but when I try using the “ExtendDisplay” menu in ActivCast, I get an error popup message stating “Fail to Extend Display”. Please advise.

      Software: ActivCast (
      OS: Windows 10 Enterprise 2004 (19041.388)
      Hardware: ActivConnect G

      The Extend Display menu
      Resulting error message

      ActivCast Version window

      Windows Version window

    • #30898
      Paul PrometheanPaul Promethean


      Thanks for posting.  The extended function does not work in ActivCast it can only mirror what you have displayed on your main screen.  You could try and use the ActivCast Chrome extension to display a certain Chrome tab on your ActivPanel and not the whole desktop as a workaround?

      If we can be of any further assistance please do not hesitate to get back in touch.

      Kind regards,


      Promethean Technical Support

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