I have an iMac 20" mid-2007 and an external 23.6" 16:9 aspect display, I would like to mirror displays keeping a 16:9 aspect on the external display, eventually stretching the image of the built-in 8:5 aspect display.
Is it possible?
Ask Different is a question and answer site for power users of Apple hardware and software. It only takes a minute to sign up.Sign up to join this community
It is not possible. Apple explains well what happens when you mirror displays:
"Your Mac will attempt to match the closest resolution between the primary (or built-in) and secondary displays. The usable resolution is the closest matching resolution for both primary and secondary display. If you choose a resolution that is not supported on both displays, the resolution will return to the closest matching resolution."
What are you doing that your only choice is to mirror the displays?