2 Replies
      Latest reply on Jan 31, 2019 1:41 AM by pklapp
      pklapp Level 1 Level 1 (0 points)

        Hi all,

        do anybody know what this message:

        [ERROR] - Unable to find display pipe for IOFB service: 18711

        from WindowServer in Mojave 10.14.3 means. Constantly displaying to Logfile.

        Thanks Petr Kral

        • Re: WindowServer error
          eskimo Apple Staff Apple Staff (12,305 points)

          Is this log message correlated to something you’re doing in your code?

          Share and Enjoy

          Quinn “The Eskimo!”
          Apple Developer Relations, Developer Technical Support, Core OS/Hardware
          let myEmail = "eskimo" + "1" + "@apple.com"

            • Re: WindowServer error
              pklapp Level 1 Level 1 (0 points)

              No relation to any activity from my app. I don't see this message after fresh boot, but after some time it appears. Seems to me that in previous versions of macOS the consumption of storage (more 1.5GB) and cpu (about 18%). I see thats intermittent but any clue what IOFB (IOFrameBuffer? I guess) means and code 18711? Thanks Petr

              P.S. Now I see that the problem appers with additional screen running under DISPLAYLINK software. (USB connected screen). In this sense make no sense to investigate futher. Once more thanks Petr