Almost new 3.5 Ghz Intel Core i7 iMac 2014 SSD only, 32GB disk running 10.9.4. Absolutely will not start up from shutdown state with an additional 27" Thunderbolt display attached. Unplug the display, boots fine. Then plug in the display, all works peachy. Sleep is also broken and hangs on restart, except if you only sleep the displays, not the CPU then it always wakes up fine. This is pathetic, very Windows-like. 😟
Suggestions?
10.9.3 and 10.9.4 have known issues with displays attached via Thunderbolt (for example see here Second display problem with 10.9.4 and 10.9.4 - Thunderbolt display for 6630M (Mini mid-2011) still broken ).
You can try filing a bug with Apple at https://bugreport.apple.com/
10.9.3 and 10.9.4 have known issues with displays attached via Thunderbolt (for example see here Second display problem with 10.9.4 and 10.9.4 - Thunderbolt display for 6630M (Mini mid-2011) still broken ).
You can try filing a bug with Apple at https://bugreport.apple.com/
Thanks for the info. Bug Report filed 17657175.
won't start with thunderbolt display attached
