Q: Apple Keyboard and Magic Mouse/Touchpad not working in TDM
I've got a late 2013 27" iMac connected to a MacMini via TB. When I enter TDM, i can see the desktop of the Mini, but my keyboard and mouse/trackpad are unresponsive. I haven't tried connecting a separate KB and mouse to the mini to see if they work...I wanted to see if there was a fix for this issue before doing so. Thank you in advance!
iMac (27-inch, Late 2013), OS X El Capitan (10.11.5)
Posted on Jun 21, 2016 4:21 PM
A Mac that's connected to an iMac in Target Display Mode can't use the iMac computer's built-in camera, its USB, ThunderBolt, or FireWire ports, or devices connected to those ports. To use external devices with your Mac, connect these devices directly to the Mac you want to use them with.
Use your iMac as a display with Target Display Mode - Apple Support
Posted on Jun 21, 2016 7:25 PM