I have Yosemite 10.10.3 installed on my MacBookPro circa 2011. At some point, my Speaker icon went gray. If I go into Settings/Sound/Output, all I see is
Digital Out entry and it says
The selected device has no output controls as per screenshot below.
If I hold down the
Option key (as in this answer) and click on the Speaker icon, I get the following list of devices. As you can see, there are no Internal Speakers, as one would expect.
So, what am I missing? I've tried
sudo killall coreaudiod as per this question. It just restarts everything, but changes nothing.
What else can I try?