In good news, this problem seems to not exist with the latest Pharo5 VM + image (seems not backwards compatible to the Pharo4 image), so that'll fix my problem as I'll just use Pharo5 instead of Pharo4 for this project.

Cheers,

Jeff

On Fri, Mar 25, 2016 at 1:08 PM J.F. Rick <self@je77.com> wrote:

In further details, when it is green-button maximized, then I can run "Display fullscreenOn" and it doesn't crash. I also upgraded the desktop to the latest OS (10.11.4) but that doesn't fix it.

Cheers,

Jeff

On Fri, Mar 25, 2016 at 11:12 AM J.F. Rick <self@je77.com> wrote:

Hi,

I'm trying to run fullscreen Pharo on MacOS using "Display fullscreenOn". On my laptop (13" Macbook Pro, OS 10.11.4), that works. On my desktop (MacMini, 4k display, OS 10.11.3), the screen goes to black for several seconds and the VM crashes. I am attaching the crash.dmp file. Note that this is a new Pharo4.0 I just downloaded from pharo.org.

If I maximize the screen using the green button on the Pharo window, it does not crash. But, it does mean that anytime I move my cursor towards the top the Apple menus appear. That's not ideal for this purpose but could be acceptable. When I quit and restart Pharo, it doesn't come back in full screen mode. Is there Pharo code I can run to have it be in this kind of fullscreen mode without user action?

Cheers,

Jeff