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Fixed in 2020.1.X
Fixed in 2019.2.X, 2019.3.X
Votes
8
Found in
2019.2
2019.2.11f1
2019.3
2020.1
Issue ID
1196536
Regression
Yes
Player freezes when Alt + Tabing if Player is running in the background and is in Exclusive Fullscreen mode
Steps to reproduce:
1. Download the attached project
2. Build a Standalone player (add "SampleScene" to build settings)
3. Launch player
4. Alt + Tab to focus on a different program
Results: After 3-5 Alt + Tabs Player freezes
Reproduced with: 2020.1.0a12, 2019.3.0b10, 2019.2.11f1
Not reproducible with: 2018.4.12f1
Note:
- Issue reproducible with IL2CPP and mono backends
- Issue is reproducible if player's Fullscreen mode is set to Exclusive and Run in Background is enabled
- Issue is reproducible when UI element's transformation is modified
- Tested and reproduced on Window 10
- The issue is reproducible with Run in Background is disabled, but it is more harder to do it.
Comments (7)
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BenIVRE
Mar 21, 2024 17:13
Reproduces in 2022.3.21f1 on Mac builds with Exclusive Fullscreen and Run In Background enabled.
pertiofesim
Jan 30, 2020 21:34
issue still occurs,
GPU: rx 5700 xt
drivers issue: adrenalin 20.01.04
kickstep
Dec 06, 2019 02:47
According to Tautvydas-Zilys this will be fixed in 2019.3.16
https://forum.unity.com/threads/exclusive-fullscreen-alt-tabbing-freeze.789119/
kickstep
Dec 06, 2019 00:44
Just tested in 2019.2.15f1
Issue is not fixed.
Also seems to have some side-effect where it is changing windowing mode to Windowed before re-creating Exclusive Fullscreen context.
DropNodes
Nov 17, 2019 12:30
Planned for 2019.3, well we kinda need it for 2019.2.x too :)
Kamyker
Nov 09, 2019 00:58
Video of how to reproduce it using Paladins and attached project. I wasn't unable to get this bug using Alt+Tab but somehow that other game always made Unity player freeze
https://youtu.be/OrhaM_K4fQs
AlistairFP
Nov 08, 2019 18:19
We had this exact issue in Rust, we were forced to downgrade to the last known working version which was 2019.2.