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Not Reproducible
Votes
1
Found in
5.6.1p2
Issue ID
919131
Regression
No
[Mobile][Editor][Retina] Canvas scale changes every frame leading to jumping UI and severe performance degradation
Only reproduces with two monitors (for example MacBook Pro + another monitor).
Using textMesh Pro package.
Steps to reproduce:
1, Open user's attached project
2. Make sure Build target is set to iOS or Android.
3. Drag one of the Editor windows to another display, for example, Profiler window.
4. Hit Play
Result: Canvas scale changes/jumps every frame.
This behaviour is not reproducible both with OpenGL 4.1 and Metal, but not when the target is set to Desktop.
Reproduced with: 2017.2.0a1, 2017.1.0b7, 5.6.1p2, 5.6.0f3, 5.5.3p3.
Note:
Also, try dragging one of the Editor windows between two monitors (not in Play mode). The Canvas scale will change/jump as well.
Only reproduced with Retina display. Unable to reproduce it with iMac (that does not have Retina).
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EdwinLyons
Jul 26, 2017 16:58
It makes working with Unity across two monitors almost impossible - which is particularly useful if you have a small laptop screen and want to put a large window like the profiler or animation window on another larger monitor.
EdwinLyons
Jul 26, 2017 16:57
This is the same issue as https://issuetracker.unity3d.com/issues/ui-elements-flicker-with-editor-on-a-second-monitor-and-game-window-on-the-main-retina-display (and https://issuetracker.unity3d.com/issues/retina-dragging-editor-window-from-retina-display-causes-ui-corruption?_ga=2.244802567.348075562.1501082998-1518085927.1451922145 and https://issuetracker.unity3d.com/issues/scaling-issues-when-moving-unity-between-5k-displays-and-fhd-displays)
It's been marked as fixed multiple times but has remained an issue for many versions.