Chosen Solution
Hi Folks, my iMac 27" mid 2011 won’t sync a picture with my tv over the apple tv 4 gen. Sound is working fine. With iPad or iPhone it works perfectly so its not the Apple tv or the tv. Anyone some ideas? Installed Air Parrot to test it and with that it works fine.
I solved it finally, read in an forum that some kernel extensions from an previous AirParrot installation caused the problems. That did not solve at first, thought about duet , and erased that extension files too, now everything works fine. I think I will write airparrot and duet support about these problems.
