# Strange behavior with retina displays + external monitors in 1.90.2 (py2)

**URL:** <https://discourse.psychopy.org/t/strange-behavior-with-retina-displays-external-monitors-in-1-90-2-py2/5485>\
**Category:** Coding\
**Tags:** screen\
**Created:** [October 5, 2018, 5:04pm UTC](https://discourse.psychopy.org/t/strange-behavior-with-retina-displays-external-monitors-in-1-90-2-py2/5485 "2018-10-05T17:04:02Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![jonathan.kominsky](https://avatars.discourse-cdn.com/v4/letter/j/a587f6/32.png) [@jonathan.kominsky](https://discourse.psychopy.org/u/jonathan.kominsky)\
**Post date:** [January 23, 2019, 12:15am UTC](https://discourse.psychopy.org/t/strange-behavior-with-retina-displays-external-monitors-in-1-90-2-py2/5485/6 "2019-01-23T00:15:15Z")

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Thanks for this! Share did the trick for the single-monitor version, it now updates both windows. It did not fix the multi-display version, still only updating the most recently created. Giving them different swapInterval values as well didn’t fix the issue, no matter which was 1 and which was 0, and no matter which order I had them flip, or having it share or not. It only ever seems to be updating the most recently created window when there’s multiple monitors. Any other ideas?

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