My iMac won't mirror to my Apple TV they both have the updated software.

not all macs have the hardware required to do airplay mirror read more here

https://support.apple.com/kb/HT5404

Restart your wifi router

I am having exactly the same problem. It will connect to my itunes library no worries, I can connect my IOS devices fine... the bloody thing stays on 'extend' yet it will not actually extend. MY Imac is MId 2011 and is supposed to work ok.

Mavericks reminds me of the old days of using a PC, when you plugged something new in, it took you a month to actually get it working. Since upgrading, my email doesnt work properly, my whole system will not actually shut down - there are just so many bugs its crazy.

I have the exact problem. It works fine with Itunes, screenmirroring from ipad but not from my Imac late 2012.

Same exact problem here. Mirroring worked no problem up until recently (iMac mid-2011). iPad and iPhones still work, but not the iMac. Sound comes out, but won't change from 'Extend Desktop'.

ian.mont wrote:

I am having exactly the same problem. It will connect to my itunes library no worries, I can connect my IOS devices fine... the bloody thing stays on 'extend' yet it will not actually extend. MY Imac is MId 2011 and is supposed to work ok.

Mavericks reminds me of the old days of using a PC, when you plugged something new in, it took you a month to actually get it working. Since upgrading, my email doesnt work properly, my whole system will not actually shut down - there are just so many bugs its crazy.

I too have this issue. It is doing exactly has what is being described here. Worked fine until the update but stays on "Extend Desktop" and won't let you select "Mirror iMac" and the desktop doesn't actually extend ether. It is just a black screen. As others stated this worked fine before the update but, I can't say if it was the OSX update or the ATV update that has caused this. This is a new iMac just purchased fall of 2013 and like stated this worked fine until I did updates. I just hope this is just a whoops error and Apple rolls out a bug fix soon for this.

Yes me too, exactly the same, I've searched around for a solution and tried everything but IM still stuck, somebody must have figured this out somewhere, should also add all our other apple devicies work perfectly

anyone found some solution ???

Ditto ditto dittos. Can't Mirror my iMac. 😟 Audio and black screen only.

I am having the same issue and it is driving me crazy! Airplay works perfectly with my iPhone 5S ipad and even a macbook pro running on mavericks. Some reason it doesn't work on my iMac (late 2012 model).

I got some respons from apple support and they sade that it will be needed to install a new clean version ..

Something has happend between the updates...

A new clean version of Mavericks..

I just tried this Hubbabubba100, and it didn't work. I reinstalled from the restart menu when you hold down command and R. Same issue remains.

JUST FIXED IT!!

thanks juann1983 for reminding me this was an unsolved issue at my house. did some digging and looks like there were a lot of other people with this issue that were showing up on the forums finally. someone else found this answer so i don't want to take their credit, but it worked for me and lots of other people, so hopefully this solves everyones problems...

copythat23

TS4215 Re: Airplay won't change to mirror iMac from Extend Desktop

Apr 22, 2014 10:40 AM (in response to Siberiankj)

I GOT IT!!!

For all of you out there that have not installed AIRparrot here is the fix.

Applications>Utilites>Uninstall Air Display

Let your computer restart and that should be it. Im not sure what caused the problem but this sure fixes it.

Message me if you have any further questions