My 2011 macbook air will no longer play sound (something that happened more or less when I upgraded to Yosemite 10.10.5).
I get nothing out of the speakers or when I plug in headphones. When I look at the sound panel in System Preferences the only option I have for audio output is Apple TV. I resinstalled 10.10.5 but the problem remains.
Help....
Jon
MacBook Air, OS X Yosemite (10.10.5), null
Sound – No Sound After Upgrade (2)
Sound – can’t hear sound from speaker - Yosemite
Sound – Troubleshooting Internal Speakers
Try cleaning out the headphone jack and then insert a headphone several time. Sometimes the jack gets stuck.
Sound problems
In the Terminal, type that:
sudo killall coreaudiod
And in the sound preferences, make sure your internal speakers (and not HDMI or other device) is selected.
Other ressources:
http://www.iphonetopics.com/no-sound-after-upgrading-to-os-x-yosemite/
http://betanews.com/2014/08/26/how-to-fix-disabled-audio-in-os-x-10-10-yosemite- beta/
Thanks Eric, unfortunately none of these work. I don't have speakers as an option in my sound preferences (and they don't appear in audio utilities either)... all I can see in the "Select a device for sound output" box (in Sound Preferences) is Apple TV. Maybe there's a problem with my hardware?
Only available sound output on my mac is Apple TV
