i just updated to 10.9.2 and now when i try and airplay mirror to my Apple TV, it sends the audio but just shows a black screen and i can't drag anything to it. It doesn't show any of the options for external displays in the displays section of System Preferences.
Any ideas? i tried reapplying the combo update with no luck
iMac, OS X Mavericks (10.9.1)
I was having this same issue but never installed ParrotDisplay. However, I did have duet installed, a similar third-party app. After I uninstalled duet and restarted my iMac, the issue was resolved. I believe that this issue is caused by any third-party screen sharing app.
Thank you!! It took me one day to find a proper solution and now around 24:54 with your help everything is b(l)ack to normal ;-)
Airplay mirroring broke in 10.9.2
