Search Issue Tracker

Fixed in Unity 5.5.0f3



Found in


Issue ID




UI elements flicker with Editor on a second monitor and Game window on the main retina display

Editor - Other



Priority: 3Not yet prioritized for a release


Severity: 2Core functionality majorly impacted

Steps to reproduce:
1) Open the attached project.
2) Place the Editor window on a second monitor.
3) Detach the Game tab from the Editor and place it on the main retina display.
4) Press 'Play'.
5) Click on the Scene view or Game view.

The UI button starts flickering and gets offset from the center of the Game window with each click and then returns.

Reproduced on:
5.5.0a5, 5.4.0f3

Did not reproduce:
5.3.6p2, 5.2.4f1

Machine used to reproduce the issue:
Main display: iMac 27" 5120x2880 (downscaled to 2560x1440)
Second display: 1920x1080

Comments (11)

  1. E05aa8b9fcdfeffe70b9d9705dd1a36c?d=mm


    Dec 07, 2018 03:51

    Still happens in 2018.3.0b12

  2. C55ffbcb705a74889cd8a0e3100ea771?d=mm


    Aug 25, 2018 16:55

    still happening in 2018.2

  3. 6ae419748d2d7a06e40a05a09247a580?d=mm


    Sep 29, 2017 19:30

    This is still happening to me in 5.6.3p1

  4. 429eb71018cf342371f7ee097a941703?d=mm


    Jul 14, 2017 02:07

    This is literally still happening? Is this not even being looked at?

  5. 520a7bbe0121875e85e0c6a4fcb260da?d=mm


    Jun 06, 2017 09:06

    Still occurs for me on Unity 5.6.1p1. Makes working with two monitors basically impossible.

  6. Bb1fdbfd531f63500fa35874b89ae607?d=mm


    Apr 12, 2017 21:29

    This still occurs for me on 5.5.0p1, on Mac OSX El Capitan.

  7. 59c265657bef0b7f0d8cae38ffcb53fa?d=mm


    Jan 07, 2017 12:22

    I have the same issue in 5.5.0f3

  8. Db91b69a9e872dfa46db537403f8d4da?d=mm


    Nov 04, 2016 22:13

    Issue still occurs in 5.4.2f2

  9. E4daa9b72fdbbcfaa612d65feda6442b?d=mm


    Sep 06, 2016 23:21

    To add to this: the flickering occurs when ANY Unity window updates on the laptop's retina screen. For example, it occurs if you move the Profiler to that screen (but keep the Game window on the 2nd screen), or as you interact with any inspector on the laptop screen.

  10. 00f211b673460fa55d1ea8a87ed8e726?d=mm


    Sep 01, 2016 06:40

    Issue still occurs in Unity 5.5.0b1

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.