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Votes
0
Found in
2022.3.64f1
6000.0.52f1
6000.1.10f1
6000.2.0b8
6000.3.0a1
Issue ID
UUM-110469
Regression
No
Screen.resolutions and Display.displays showing screen resolution higher than possible on Mac external monitor
Reproduction steps:
1. Open the attached “Mac ScreenRes.zip“ project
2. Open the “Assets/Scenes/Main.unity“ Scene
3. Open the “Displays” settings in the macOS system settings
4. Select the “2560x1440“ or the “3200x1800“ scaling option on the selected external 4k display
5. Build And Run the project (File > Build And Run)
Expected result: The display’s resolution matches the one set in the system settings
Actual result: The display’s resolution shows up as “5120x2880” or “6400x3600” respectively
Reproducible with: 2022.3.64f1, 6000.0.52f1, 6000.1.10f1, 6000.2.0b8, 6000.3.0a1
Reproducible on: M1 Max MacOS 15.5 (Tested by CQA)
Not reproducible on: No other environment tested
Note: This issue is only reproducible with 4k monitors connected to macOS
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Resolution Note:
This is the expected behaviour. When a custom resolution (scaling) is selected in the macOS settings and that resolution is less than the native resolution of the external monitor, macOS will render everything at 2x resolution internally and then downscale to present the image in the native size of the monitor. What Unity returns is the the actual rendering resolution (so 2x).
Here's a nice write up of what happens with resolution scaling in macOS: https://github.com/waydabber/BetterDisplay/wiki/MacOS-scaling,-HiDPI,-LoDPI-explanation
We do agree, that actual native size of the display is a relevant information and we will evaluate it as a feature request to see if we can introduce it in the future releases of Unity