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Fixed in 2018.1.X
Votes
4
Found in
2017.3.0b3
Issue ID
959498
Regression
Yes
[OSX] [Multidisplay] 2nd screen is not shown when scene is built as 64bit or Universal
To reproduce:
1. Open project
2. Build and run scene for x86 version
3. Repeat 2nd step with x86_64 or Universal build target architecture
Expected: 2 screens with toggle will be visible both times
Actual: 2nd screen is shown only when scene is built for x86
Reproduced on: any 2017.1, 2017.2 and 2017.3(since 2017.3 only 64bit architecture available)
Not reproducible: 5.5.0f3, 5.5.4p1, 5.6.0a3
Regression introduced in 5.6.0a3- 5.6.0a6
Tested on: OSX 10.12 and 10.13
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novaVision
May 07, 2020 22:05
Doesn't work on 2018.4 as well
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aetfi
Jan 23, 2020 18:23
- Metal MultiDisplay support was implemented in April 2019, it's only available on 2019.3 or later releases
- It looks like issue id 959498 was closed after an OpenGL multidisplay related issue was fixed into 2018.1. Communication error, at this time Metal MultiDisplay support was not implemented.
- Metal support is 64bit only, so once you enable Universal (32/64bit) support, it's likely using Metal graphics device by default. A workaround is to remove Metal explicitly from Auto Graphics API for Mac list in player settings.
- 32bit/Universal Mac application support was dropped entirely in 2017.3, increasing odds that Metal graphics are being used by default
- Unity releases older than 2019.3, if you need MultiDisplay support, please make sure Metal graphics is not listed in Auto Graphics API for Mac list in player settings.
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stephen77
Nov 01, 2019 13:43
Hello this is still happening on OSX for me - 2019.2.11f1
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artfail
Oct 03, 2019 21:55
This is marked resolved, should I make a new report for this bug? I am using unity 2019.2.7 and OSX 10.14.6. External displays are detected but do not activate.
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ledbetterman
Apr 03, 2019 23:40
Having this issue with 2018.3.5f1. Works fine on Windows, doesn't work on Mac.
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efreeman
Mar 28, 2019 19:32
Still experiencing in 2018.3.9
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ricardodoberstein
Mar 12, 2019 21:25
This is not fixed. Currently happening on Unity 2018.3.6f1
It only works on MacBook using Yosemite (an OS with over 6 years...)
Changing to OpenGL does not currently fix this issue.
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jborda
Nov 12, 2018 14:28
Still happening in 2018.2.14f1
But I can reconfirm Thorikawa's comment - If you switch graphics API to OpenGL core, it works.
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nycucumber
Sep 28, 2018 20:45
still happening in 2018.2.10f1
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soriak
Jun 24, 2018 14:45
Still experiencing this issue in 2018.1.6f1
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Resolution Note (fix version 2018.1):
- Metal MultiDisplay support was implemented in April 2019, it's only available on 2019.3 or later releases
- It looks like issue id 959498 was closed after an OpenGL multidisplay related issue was fixed into 2018.1. Communication error, at this time Metal MultiDisplay support was not implemented.
- Metal support is 64bit only, so once you enable Universal (32/64bit) support, it's likely using Metal graphics device by default. A workaround is to remove Metal explicitly from Auto Graphics API for Mac list in player settings.
- 32bit/Universal Mac application support was dropped entirely in 2017.3, increasing odds that Metal graphics are being used by default
- Unity releases older than 2019.3, if you need MultiDisplay support, please make sure Metal graphics is not listed in Auto Graphics API for Mac list in player settings.