No solution
Looks like this is a problem been going on for a while. Come Apple fix this, it's going to be 2 lines of code and will take you like 3 min to do.
I have a similar problem, I have it when I turn on my MacBook Pro and close to to work on the 27" with full wired keyboard, I have NO Keyboard while it's connected to the 27" display. I have to then remove it plug into the Macbook it self and work for a while like that, later on I can then remove it and plug it in the back of the 27" then it works, but it's painful. If you paid over $3000 for all this you want it to work.
Other than most of you guys here, my USB ports ports work when I connect other devices onto it.
Joe
Looks like this is a problem been going on for a while. Come Apple fix this, it's going to be 2 lines of code and will take you like 3 min to do.
I have a similar problem, I have it when I turn on my MacBook Pro and close to to work on the 27" with full wired keyboard, I have NO Keyboard while it's connected to the 27" display. I have to then remove it plug into the Macbook it self and work for a while like that, later on I can then remove it and plug it in the back of the 27" then it works, but it's painful. If you paid over $3000 for all this you want it to work.
Other than most of you guys here, my USB ports ports work when I connect other devices onto it.
Joe