Q: Time machine, Thunderbolt displays, and extended desktop on El Capitan
OK, I've an iMac running El Capitan, with 2 external daisy-chained 27" Thunderbolt displays. Menubar is on one of the Thunderbolt displays. Feels like a spaceship, looking across all this retina real-estate!
First problem: Can't enter Time Machine. Upon clicking the time machine icon, the displays dim (just as you'd expect), the sweet animation begins, but then the animation stops, and the desktop returns. The system does not enter time machine.
By disconnecting the two external Thunderbolt displays, I can enter time machine normally, and choose files to backup. But with external Thunderbolt displays, I cannot enter Time machine to choose backups.
iMac (mid 2011) running OS X 10.11.1, pretty much vanilla except for 2 additional 27" Thunderbolt displays, extending the desktop horizontally across three monitors.
iMac, OS X El Capitan (10.11.1), 2 Thunderbolt 27" displays
Posted on Oct 22, 2015 11:57 AM