Unity Issue Tracker - Fullscreen mode: Maximized Window functionality is broken and any built Player changes to Non-Window mode when Maximizing

Fixed in 2018.4.0f1

Fixed in 2018.4.X, 2019.1.X, 2019.2.X

Votes

64

Found in

2018.3.8f1

2019.1.0b5

2019.2.0a6

Issue ID

1137204

Regression

Yes

Fullscreen mode: Maximized Window functionality is broken and any built Player changes to Non-Window mode when Maximizing

Windows

Mar 15, 2019

How to reproduce:
1. Create a new project and open its Player settings
2. Under the "Resolution" settings change the "Fullscreen Mode" to "Maximized Window" and checkmark the "Resizable Window" option
3. Build the project
4. Run it in fullscreen mode (The Player will be fullscreen in non-window form)
5. Run it again in windowed mode and maximize the window (The Player will still be in fullscreen non-window form)

Expected result: when maximizing the player is still in window mode
Actual result: maximizing the player results in it changing modes to regular fullscreen, making the title bar disappear

Reproduced in: 2019.2.0a8, 2019.2.0a6, 2019.1.0b7, 2019.1.0b5, 2018.3.9f1, 2018.3.8f1
Not reproducible with: 2019.2.0a5, 2019.1.0b4, 2018.3.7f1, 2017.4.23f1 (The 2017.4 versions had a separate D3D11 Fullscreen Mode setting which works as expected when setting it to Exclusive Mode)

Fixed in: 2019.2.0a15, 2019.1.2f1, 2018.4.0f1

Resolution Note (fix version 2018.4.0f1):

The behavior of the Maximize button was changed in order to fix another (more serious) issue: https://issuetracker.unity3d.com/issues/buttons-dont-record-input-when-the-window-is-maximized-and-then-set-to-2560x1080-resolution

Clearly we made a bad call. So, we've implemented a different fix to the aforementioned bug which also maintains the correct maximize window behavior.

A workaround to automatically revert the app out of fullscreen mode can be found here: https://forum.unity.com/threads/unity-2019-1-is-now-available.661885/page-3#post-4491478

Verified fixed in: 2019.2.0a15, 2019.1.2f1, 2018.4.0f1

Comments (34)

ttmmiizz100

Apr 11, 2019 21:56

This seriously needs more priority. It worked in 2017.3, then I switched to 2018.3.11f1 and maximizing the window now switches to fullscreen mode.
Jens_Eopus

Apr 11, 2019 07:58

Reproducible in 2019.1.0f1 Release Candidate
sumner

Apr 10, 2019 21:41

IS reproducible in 2018.3.11 and .12
sumner

Apr 10, 2019 21:41

Please Fix... got an non-preferred hack in now
TFgamesOG

Apr 10, 2019 17:50

I had to downgrade the Unity version because of this issue...
stykudeveng

Apr 09, 2019 17:40

Why is this a P2? This is a regression since 2018.3.7f1, How do we increase the Priority on this?
isokron

Apr 09, 2019 13:05

Reproducible in 2018.3.12f1
MarblXR70

Apr 09, 2019 13:00

When is this going to be fixed?
It is very uncommon on Windows to end up in fullscreen when clicking the maximize button.
stykudeveng

Apr 08, 2019 06:27

Reproduced in 2018.3.11f1
EthanFischerICS

Apr 04, 2019 17:33

I see this in the log:
"MaximizedWindow is not currently supported on Windows, setting to FullsceenWindow instead"

Despite the fact that I have it set to Windowed mode in player settings and set it via code
Screen.fullScreenMode = FullScreenMode.Windowed;