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Won't Fix



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Issue ID




Display.displays does not update when connecting/disconnecting an external display on a build



Reproduction steps:
1. Open attached project "Case_1330759"
2. Build and Run the Project
3. Observe the Text in the Build
4. Connect an external display and observe the Text in the Build again
5. Disconnect the display and observe the Text once more

Expected result: Display.displays updates when a display is connected/disconnected
Actual result: Display.displays does not update when connecting/disconnecting a display

Reproducible with: 2018.4.34f1, 2019.4.25f1, 2020.3.6f1, 2021.1.5f1, 2021.2.0a16

- Reproducible on Windows and macOS

  1. Resolution Note (2021.2.X):

    We don't think this use case is important enough for Desktop Platforms. Since the customer that originally reported this issue only reported for mobile platform. We could consider this a feature request if we got enough requests from our customers.

Comments (3)

  1. steffenzorn

    Mar 06, 2024 14:28

    Closing bugs as "won't fix" and considering working on that only if enough customers complain must be a joke. Please fix this issue.

  2. mbellgarmin

    Mar 01, 2024 15:23

    Having an accurate representation of the connected displays for both Windows and Android is important for a number of my projects. Please consider fixing this bug

  3. BOTHLine

    Jun 09, 2022 12:39

    But why does the Scripting API say "In a built application, Unity automatically updates this list when you connect or disconnect a display." if you say that's not a bug and you won't fix it?

    I too would need this on desktop builds. I am currently working on a project where one or more pojrectors are connected to the PC to display various information of the program within the room.
    The people interacting with that system are probably not reliable enough to always turn on the projectors beforehand. Thus I would like to implement a bootup scene which checks how many displays are currently connected, tell the user to connect/turn on the projector if needed and then automatically progress to the correct scnene. But since there seems to be absolutely no way to detect if a new display has been connected, this doesn't work either.

    What am I supposed to do in this kind of situation?

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