OS X 10.9.2 is Causing Problems with the Use of External Display and AirPlay Function

OS X 10.9.2 and did not start with a very good start. The latest system update resolves an important security issue, but seems to have learned a number of problems. This marks the Apple support forums are very active. Leaving aside what users mailing doubtful that are generating buzz are those that affect the use of external monitors and AirPlay.

Since disconnections, streaming audio, but no video signal does not appear to connect an external monitor... While all defects are similar situations or conditions to more accurately isolate the fault. All that has been identified is an error with an extension called APExtframebuffer.

Remove the extension, and in his absence the driver AirParrot those who have used the application seems to be solved. To do this, as described by a user, simply navigate to the relevant / Library / Extensions system and places Library / Extensions and remove both APExtframebuffer.kext as AirParrotDriver.kext. Then restart and go.

We will monitor the issue to see if the reason and the solution is known or if Apple offers a solution or an explanation of the reasons that are causing these problems.