On a 2010 Mac Pro, using a new drive, doing a fresh install, I have no sound, not even a startup chime (when the El Cap drive is set as the startup drive in the control panel). From the numerous articles I've found, I tried the usual fixes, after doing all of the available updates.
Checklist of attempts to fix:
- reset the SMC
- reset the NVRAM
- checked the headphone jack (reports of debris, etc.)
- checked the Sound control panel (all devices list properly, and recognizes presence/absence of headphones)
- tried switching between devices
- tried
sudo kill coreaudio - deleted the
com.apple.audio...pref and restarted
None of these had any effect.
Also, it's highly unlikely to be the hardware. The new drive (with El Capitan), is a second drive. The first drive is running 10.6.8, and has no sound issues when I boot up from it. It's only happening when booting into El Capitan.
Any other suggestions that I've overlooked?
Aside: I had the same happen with a MacBook Pro, and El Cap. I spent a day on that as well, but whatever fixed that, isn't fixing on this. There's the oddity that one account works normally, but the other account gives no screen feedback, or sound feedback, that the volume is changing, but the volume does work, and does change.
