Stop MacOS changing resolution on boot?

[macsonski]

Hi All,

Odd question. I have an iPad 2 screen (removed from iPad case) being connected via an HDMI converter to run off a Mac Mini. When the Mac Mini boots up the iPad screen has a perfect Apple logo and looks beautiful. However, about half way through the boot sequence, the screen changes from a 4:3 resolution to a 16:9 resolution and screws up the screen display. Image looks all elongated when on desktop.

I've tried a few apps like SwitchRes X to force the native 2048x1536 resolution but that just causes the screen to show "Out of Range" and no image is shown.

Is there a way to force MacOS to boot in the initial resolution it detected which is perfect for try iPad screen running via my converter?

Thanks

 

[usagora]

Hopefully someone else will prove me wrong, but I think you're probably out of luck for a native macOS solution, as that sounds like an unusual setup for a Mac Mini to use an iPad as your main display. How often are you rebooting your Mini, though? I think most people (myself included) keep them running 24/7 and only put the display or computer to sleep when not in use. The only times I reboot are for system updates or troubleshooting.