After installing Yosemite in the beginning there was no problem but after few days of using it the AirPlay Display no longer works and the icon no longer shows up, I have a mid-2011 iMac and never had a problem when my OS was Maverick and I know my iMac is compatible for AirPlay Display.
Please let me know if there is a solution to this or is this one of the many glitches.
Please let me know if there is a solution to this or is this one of the many glitches.