OS X does not allow me to adjust the volume.
As happened to Sound On My Computer Doesn't Work, and a number of other people on the web, I can no longer adjust volume on my Macbook. Boo. :(
One day while leaving the office, I unplugged my headphones, unplugged my Thunderbolt display, and put my computer to sleep - not necessarily in that order. When I got back to my house, I was prevented by the OS from adjusting my volume:
There are two devices available to me when I have the display plugged in:
It does not matter which I choose. When the display isn't plugged in, the display audio device is not an option.
I could still adjust the volume level through the Sound preferences pane, just not the volume keys.
Suggestions on the previously-linked answer and elsewhere on the web have included poking the headphone jack repeatedly with a toothpick. Unfortunately, after I tried this, I now have no sound at all, except, strangely enough, the volume-changing "plick" when I move the slider in the preferences pane.
I have to say I'm at a bit of a loss. Suggestions?
Es esta una buena pregunta?