I've been using an iMac 27" Quad-Core Intel i7 (late 2013) as a target display with my MacBook Pro 13" (2018) 02.7 GHz Quad-Core Intel Core i7 for over 5 years. It's worked fine but this week it has stopped reconising connecting when I press 'command' + 'f2'. There's obvious no way to check anything in the settings. Any pointers?
Imac - OS Catalina 10.15.7
Macbook Pro - Ventura 13.5.2
MacBook Pro 13″, macOS 13.5
Apple added restrictions to Target Display Mode.
Use your iMac as a display with target display mode - Apple Support
Assuming that you have a proper Thunderbolt connection between your 2018 MacBook Pro and your 27" Late 2013 iMac, your configuration still runs afoul of the restrictions in two ways:
Apple added restrictions to Target Display Mode.
Use your iMac as a display with target display mode - Apple Support
Assuming that you have a proper Thunderbolt connection between your 2018 MacBook Pro and your 27" Late 2013 iMac, your configuration still runs afoul of the restrictions in two ways:
This is just a backup monitor in our spare office, I have a proper monitor that I work on normally.
I have used this exact same configuration for some time now, the only recent update was security-related on the Macbook.
Surely if the hardware is okay then why would a software update mess things up?
Hi,
But it was working with these setting as I read his/her comment. Anyway Target Display Mode is old technology, so it would be better to get new monitor for Dano1971's MacBook Pro.
iMac as a display with target display mode has stopped working
