# Full screen not filling second monitor in MacOS Mojave

**URL:** <https://discourse.processing.org/t/full-screen-not-filling-second-monitor-in-macos-mojave/8163>\
**Category:** Processing\
**Created:** [February 6, 2019, 4:50pm UTC](https://discourse.processing.org/t/full-screen-not-filling-second-monitor-in-macos-mojave/8163 "2019-02-06T16:50:33Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![scottmetoyer](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/scottmetoyer/32/3702_2.png) [@scottmetoyer](https://discourse.processing.org/u/scottmetoyer)\
**Post date:** [February 6, 2019, 4:50pm UTC](https://discourse.processing.org/t/full-screen-not-filling-second-monitor-in-macos-mojave/8163/1 "2019-02-06T16:50:33Z")

</div>

I’m just starting out with Processing and trying to get a basic full screen window displaying on a second monitor on MacOS Mojave with this code (Processing 3.5.3, P3D renderer):

```auto
void setup() {
  fullScreen(P3D, 2);
}

void draw(){
  background(0);
}

```

The first display is my Macbook screen, the second is a Thunderbolt display.

The window appears edge to edge, but only covers the bottom third or so of the screen:

 ![45%20AM%20(2)](https://canada1.discourse-cdn.com/flex036/uploads/processingfoundation1/original/2X/c/c6db41fa4d0b0b6d849e0b6e8b64fb417de213c5.jpeg)

The window fills the display as expected with the default renderer.

One thing I noticed is something that looks like an error message down in the Processing console:

```auto
	0 AppKit 0x00007fff49d49ccc -[NSWindow(NSWindow_Theme) _postWindowNeedsToResetDragMarginsUnlessPostingDisabled] + 386
	1 AppKit 0x00007fff49d4707c -[NSWindow _initContent:styleMask:backing:defer:contentView:] + 1488
	2 AppKit 0x00007fff49d46aa6 -[NSWindow initWithContentRect:styleMask:backing:defer:] + 45
	3 libnativewindow_macosx.jnilib 0x000000013259c3fe Java_jogamp_nativewindow_macosx_OSXUtil_CreateNSWindow0 + 398
	4 ??? 0x0000000114f26a88 0x0 + 4646398600
)

```

Searching for the text in those messages doesn’t turn up anything immediately related that I can see.

Any idea what I’m doing wrong?

---

<div class="post-metadata">

**Author:** ![kfrajer](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/kfrajer/32/196_2.png) [@kfrajer](https://discourse.processing.org/u/kfrajer)\
**Post date:** [February 8, 2019, 5:43am UTC](https://discourse.processing.org/t/full-screen-not-filling-second-monitor-in-macos-mojave/8163/2 "2019-02-08T05:43:57Z")

</div>

Not sure if [this](https://forum.processing.org/two/discussion/11304/multiple-monitors-primary-dragable-secondary-fullscreen) could help, referring to the last post from GoToLoop. Would it work if you set the screen dimensions manually based on your monitor in question?

Kf

---

<div class="post-metadata">

**Author:** ![jeremydouglass](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/jeremydouglass/32/20_2.png) [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)\
**Post date:** [May 4, 2019, 4:00pm UTC](https://discourse.processing.org/t/full-screen-not-filling-second-monitor-in-macos-mojave/8163/3 "2019-05-04T16:00:25Z")

</div>

May be related to:

> <https://github.com/processing/processing/issues/5791>