Connect my Macbook Pro (2019 two thunderbolt 3 ports) to my iMac (late 2015).

Yes, the work around is to buy an external display and connect it to your MBP, the good news external displays have come way down in price and they work right out of the box assuming you have the correct adapters.

We see 5, 10, 20 posts like yours every day and the answer is always the same no it does not work and no there are no work arounds. The work around is getting an external display. I realize this is not what you wanted to hear however the truth is the truth.

For Display you cannot...

• 27-inch iMac models introduced in 2009 and 2010: Use a Mini DisplayPort cable to connect your iMac to a Mini DisplayPort or Thunderbolt or Thunderbolt 2 port on the other Mac.
• All iMac models introduced in 2011, 2012, 2013, and mid 2014: Use a Thunderbolt cable to connect your iMac to a Thunderbolt or Thunderbolt 2 port on the other Mac. If the other Mac uses Thunderbolt 3, you can use the Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter with your cable.

Target display mode requires macOS High Sierra or earlier on the iMac used as the external display. It does not work with macOS Mojave or later.

This doesn't make sense that Apple would remove that feature for OS Mojave or later. I bought the adapter and cable and now I can't use them. Is there some work-around possible? My Target is running Catalina and my source is running Mojave. Someone, please help!

How are you doing?

If you have a 2015 iMac, you couldn't do it with any

version of macOS. Target display mode was removed

from iMacs with the late 2014 models and newer.