# The background does not work in a second screen

**URL:** <https://discourse.processing.org/t/the-background-does-not-work-in-a-second-screen/13760>\
**Category:** Processing\
**Created:** [September 2, 2019, 11:09am UTC](https://discourse.processing.org/t/the-background-does-not-work-in-a-second-screen/13760 "2019-09-02T11:09:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![bandMast3r](https://avatars.discourse-cdn.com/v4/letter/b/e47c2d/32.png) [@bandMast3r](https://discourse.processing.org/u/bandMast3r)\
**Post date:** [September 2, 2019, 11:09am UTC](https://discourse.processing.org/t/the-background-does-not-work-in-a-second-screen/13760/1 "2019-09-02T11:09:45Z")

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I have a laptop and a monitor. At home, I don’t use the laptop’s monitor as the primary monitor. And when I’m at school, my background doesn’t change color, as if it didn’t exist. And it just happens on my laptop screen. I have to use P3D, and I guess this is the problem. So, please help me. And thank you.

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**Author:** ![josephh](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/josephh/32/210_2.png) [@josephh](https://discourse.processing.org/u/josephh)\
**Post date:** [September 4, 2019, 10:00am UTC](https://discourse.processing.org/t/the-background-does-not-work-in-a-second-screen/13760/2 "2019-09-04T10:00:44Z")

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Hi,

Can you please post an example of code ? (so people can help you)