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Loading second display on 2 different monitor setups shrinks the higher resolution display to lower resolution displays size



Steps to reproduce:
1. Download latest attached project("")
2. Make sure you have 2 monitors with different native resolutions
3. Build for Standalone
4. Run the build and wait a few seconds

Expected result: both monitors display at their full resolutions
Actual result: display with a higher resolution shrinks to the resolution of the smaller resolution display

Reproduced on 2019.1.0a9, 2019.1.0b7, 2019.2.0a8
Not reproduced on 2018.3.9f1, 2019.1.0a1, 2019.1.a8

- Not reproducible on identical monitors with different set resolutions
- Which display the build is started on has no impact

  1. Response avatar

    Resolution Note:

    While the symptoms are different, I verified this is indeed the same issue as; the fix for that bug also addresses this problem

  2. Response avatar

    Resolution Note:

    Parent bug is a duplicated, which has already been fixed for releases:

Comments (14)

  1. 07165998e9e898206aa4e557520cf00a?d=mm


    Jul 16, 2019 21:25

    I have the same problem on 2019.1.6f1 and other versions. Trying to run a multi-display app, expecting a full-screen on each display, and they look ok in Unity Editor displays(simulated), but on actual physical displays the rendering size is not system size. Tried different combinations of settings, nothing helped so far.

  2. 5e4e523c89d85b7a50ecc881b0d67468?d=mm


    Jun 19, 2019 08:54

    In our cases it looks like all screens get rendered at an aspect ratio that depends on whatever is defined in Windows as the 'main' screen.

  3. F5493cd2254fd004d5162a0b1d8e018e?d=mm


    Jun 19, 2019 03:16

    Also, in my case, it is actually reversed. The higher resolution display is used for both and the lower resolution screen cuts off.

    I also have seen this situation create a problem where the UI components can't be hit where they are rendered, so I believe this issue may also be from the same cause:

  4. F5493cd2254fd004d5162a0b1d8e018e?d=mm


    Jun 18, 2019 03:56

    Just a note on why this is important. For many art or live presentations, multi-display with different resolutions is vital when you have different video displays, such as a monitor, touchscreen, projectors, or different sized LED screens.

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