Airplay won't change to mirror iMac from Extend Desktop

I had the same problem on an iMac mid-2011 and struggled a lot before finding the solution: Duet.

I installed this nice application short before starting experiencing the problem, I removed it by means of the built-in uninstaller and Airplay started working fine again. Strange is that Duet works fine on my Macbook Pro Retina 2013 and doesn't conflict with Airplay there.

Gaetano

Just bought an Apple TV today. Still having this issue. Tried everything in this thread - going so far as to even download those applications and run the uninstallers just incase but still no luck.

When you reinstalled OS X. Did you do a clean install in which you wiped it first and then had to manually reinstall all applications? Or did you just do an install in place in which you didn't have to restore anything (manually or through time machine)?

If anyone else has any ideas but I've made sure that anything related to AirParrot, Air Display, or iDisplay is gone off this Late 2013 iMac.

Thanks.

Nevermind! After just half splitting the extensions that were added before I got this iMac (basically from 2007-2014) and bringing them back in 50% at a time I found that my screen recycler extension was causing the issue.

If you've tried the aforementioned fixed and didn't have any luck, go to /System/Library/Extensions/ and delete ScreenRecyclerDriver.kext

I had difficulty locating these two extensions so I contacted Apple support and started a chat. The session lasted all of 5 minutes and great news Mirror IMac is working!

Same here. I uninstalled the app "Duet". And now Airplay works just fine. The people who make this app should fix this though.

This:

Applications>Utilites>Uninstall Air Display

Had this app on my iMac. Removed it and mirroring works as expected.

Thanks for the heads up!

this is such ********. ive done every single thing on this thread and nothing works. none of those scripts or apps or files exist on my imac, and i still cant mirror. i uninstalled airparrot months ago and dont have any of the files everyone says they deleted to get this to work. what the hells going on????

I have gone through this frustration also until I called Apple (chat session). Searched everywhere for those two extensions mentioned. My mistake was looking in the wrong Library. Have you clicked on the Macintosh HD icon on your desktop? If not there is where you will find the correct library folder.

step 1. When you uninstall AirParrot did you just delete the app or use the "uninstall" app? Just trashing the app will not be sufficient.

Step 2. APexFramebuffer located at: System/Library/Extensions

AirParrotDriver located at: System/Library/Extensions AND Library/Extensions

Once you have deleted the files you must empty your trash and then restart your computer.

finally found those files! i was in the wrong library. they changed things around a little since i updated to 10.10.2. mirroring works fine now! thanks!

This solved the same problem for me as well! I have a new 27" Retina iMac running OS-X 10.10.4 beta. I thought running the beta OS was causing the problem, but it wasn't. Obviously do AirParrot and Airplay not co-exist happily.

I just got the 27" 5k Retina iMac... at first it MIRRORED just fine to my AppleTV 3rd gen... but now it wont anymore.

iTunes on my imac can communicate with it.. but i can NOT mirror or do extended display... all i get is that beautiful BLACK SCREEN!!

Did anyone anything?

how do you get to these libraries??

Thanks. Removing the ScreenRecylcler extension solved the problem for me. I moved it to the trash and emptied it (I am not sure if emptying is necessary, but I did it).

Everyone needs to be careful with installing programs that allow the iPad to be a second screen for the Mac. I installed about 3 different programs, trying to find one I liked.

I has the same problems with a brand new iMac from 2013 who I have for around two weeks now. But I transferred all files with the migration assistant and with this some old extensions.

For me it was iDisplay from shape, who destroy the AirPlay Mirroring and not AirParrot. Sadly they deliver not a good manual to remove all files around iDisplay, only give the tip to download the installer and uninstall iDisplay. But don't work for me. There is also a script, placed inside the installer. Didn't work to for me.

Well... I found a tip on a external (german) page, how you can successfully let run the uninstaller script (http://hansruedi-vetsch.blogspot.de/2012/08/uninstall-idisplay-with-mac-mountain .html)

1. Right click on "Uninstall" in the iDisplay Desktop 2.1.39 for Mac OS X 10.6 Snow Leopard and 10.7 Lion (dmg, 1.44Mb).
2. Click on "Show Package Contents"
3. Enter Contents
4. Enter Resources
5. Enter Scripts
6. Double click main.scpt (this should open the AppleScript-Editor)
7. Press the Run button (it's the 3rd in the toolbar)
8. Press OK
9. Wait till you see the dialog saying succeeded
10. Close AppleScript-Editor
11. Restart the Mac

This works for me and solve my problem after the restart.

If for some reasons shape not longer deliver any installer / uninstaller, you can do it via terminal or follow the path's.

sudo rm -R /System/Library/Extensions/MSM*

sudo rm -R /Applications/iDisplay.app

sudo rm \"/Users/$USER/Library/Preferences/com.shapeservices.idisplay-host-full.plist\

sudo rm \"/Library/LaunchDaemons/ag.shape.MSMToolHelper.plist\

sudo rm \"/Library/PrivilegedHelperTools/ag.shape.MSMToolHelper\

I spent many hours to fix this problem. Thought I knew much, but could not found the problem. So glad with you guys!

I Installed Duet and was the problem. With Cleanmymac I removes al parts and it works!!!

Thousand Tnx !!!