On my MacBook Pro when I go to System Preferences and click on display, I highlighted the mirror option but the airplay button says off and doesn't give me the option to turn it on.
MacBook Pro 15″, macOS 10.14
You already exceed the minimum system requirements.
Since Mojave already contains 12.8 OR LATER, Mojave will suffice and you don't need no stinking' upgrade.
You don't use the mirror in system preferences > displays. You start with the Airplay icon on the Menubar:
Use AirPlay to stream what’s on your Mac to an HDTV - Apple Support
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You already exceed the minimum system requirements.
Since Mojave already contains 12.8 OR LATER, Mojave will suffice and you don't need no stinking' upgrade.
You don't use the mirror in system preferences > displays. You start with the Airplay icon on the Menubar:
Use AirPlay to stream what’s on your Mac to an HDTV - Apple Support
.
.
check carefully that you meet the minimum system requirements for both Hardware and software:
AirPlay system requirements - Apple Support
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Airplay System requirements needs either iTunes 12.8 or Catalina.
what model MacBook Pro by year?
I haven't updated to Catalina since my Microsoft Office for mac program is not compatible with it. Mohave is the latest one it works with. I guess I'm going to have to check with Microsoft to see about updating my Office program. Was advised it could cost me up to $365/year to do that. That's why I've been hesitant to do it.
It looks like you need Catalina now to use the airplay feature.
<< It looks like you need Catalina now to use the airplay feature. >>
The only reference I see in that document is that it requires Mojave 10.14.5 for certain items.
Where are you seeing a requiment of Catalina?
I googled AirPlay system requirements. It says to stream audio you need either iTunes 12.8 or later or Catalina. For Video Mojave 10.14.5 should work. I have 10.4.6. How do I find out what version of iTunes I have?
iTunes 12.8 OR Catalina (where iTunes splits into several different Apps)
You can use Finder to inspect iTunes.app for its version, or launch iTunes and use its iTunes menu > About iTunes.
The version I see running under Mojave is already 12.9.5.5, so I don't think you need no Catalina upgrade.
It's a 2014 MacBook Pro
If I don't have the mirrored preference highlighted the Airplay Icon doesn't show up on the task bar.
On my MacBook Pro when I go to System Preferences and click on display, I highlighted the mirror option but the airplay button says off and doesn't give me the option to turn it on.
