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Fixed in 2017.4.X
Votes
3
Found in
5.4.0b19
Issue ID
801628
Regression
No
Frame Rate unrestricted when minimized with RunInBackground and VSync enabled
Steps to reproduce:
1. Open attached project
2. 'Build and run' Test scene
-- Notice counter value which increases over time
3. Enable 'Run in background' and minimize window
-- Notice GPU load greatly increases
4. After some seconds maximize player window
-- Counter value increased by several thousands and GPU load decreases as window is maximized and in focus again.
Note: Watch repro "2016-06-03_14-09-09" video attached in last edit.
Results: Frame Rate unrestricted when minimized with RunInBackground and VSync enabled and GPU load greatly increases even though nothing is being rendered on screen.
Reproduced with: 5.4.0b21; 5.3.5p2; 5.2.4f1
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rcalabrezi
Nov 28, 2017 22:22
Reproduced with 2017.1.0f3 and Windows XP.
To solve this issue one can use QualitySettings.vSyncCount = 0 and Application.targetFrameRate = 1 (or something more adequate). OnApplicationFocus() here may be useful too.
HalversonS
Dec 08, 2016 16:29
Reproduced with 5.2.2f1
And also with 4.6.1f1 (Initialize engine version: 4.6.1f1 (d1db7a1b5196))
Issue is creating problems for our software.