Unity Issue Tracker - Secondary display rendering incorrect target and flickering when building for Multi-Display
Closed
UUM-103506
Secondary display rendering incorrect target and flickering when building for Multi-Display
Unity: Metal
macOS
Won't Fix
6.6.X
6.5.X
6.4.X
6.3.X
6.2.X
6.1.X
6.0.X
The issue does not reproduce when using MetalDisplayLink, and the non-MetalDisplayLink path is unlikely to be fixed.
For a workaround, enable "Use MetalDisplayLink" in macOS player settings.
Unity 6000.2 has reached its end of life and will not receive further updates. If you need additional fixes, please upgrade to a newer Unity version.
Cancelling: the 6000.1 version has reached its end of life. If you need additional fixes, please upgrade to a newer Unity version.
How to reproduce:
1. Open the “IN-99326_Unity6-URP” project
2. Ensure secondary monitor is set as “Extended display” in OS Display settings
3. Select File > Build And Run (Cmd + B)
4. Observe both monitors
Expected result: Main monitor displays the UI and second monitor displays 3D Scene
Actual result: Main monitor displays UI upside-down and second monitor displays the UI while flickering
Reproducible on: macOS 15.4 (M1 Max)
Not reproducible on: Windows 11
Notes:
The issue did not reproduce when both of the monitors were accessory (two monitors connected to the laptop, laptop screen shut) likely indicating that a mac built-in display is needed for reproduction
In 6000.2.0a9 the text is not upside-down on the main monitor (secondary monitor still displaying upside-down UI and flickering)
In 2023.2.0a19, the UI is not upside down in both of the monitors, but secondary monitor has the flickering UI instead of the 3D Scene
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Have a workaround or additional info about this issue?