Q: "No ouput device found" after Sierra update
I updated my iMac (model 14,2) from OS X El Capitan to macOS Sierra yesterday. The update went smoothly except that once the update finished, the desktop loaded and I logged in the volume icon in the menu bar was greyed out. I immediately opened settings, assuming the update had somehow deselected my default audio-out device (a pair of external speakers in this case). However when I went to the sound menu I was surprised to see "No output device found".
I've looked around quite a bit and haven't found anyone else with this issue yet. I became so desperate to get my audio back that I even tried installing the 3rd party "Voodoo" audio driver, however this only gave me the option for "Digital-out (HDMI)" which is of no use to me, I have the mac connected to a TV via a VGA adapter and don't own an HDMI adapter. One thing this did clarify however is that somehow during the upgrade my AppleHDA driver got deleted and never replaced, or installing an 3rd party driver wouldn't have added any output devices to the list (albeit greyed out and entirely dysfunctional ones). So at this point I am at a loss, I don't know how to replace the driver, nor where or how I would install it so any help is greatly appreciated. Danke!
iMac, macOS Sierra (10.12), 27-inch (Model 14,2)
Posted on Sep 27, 2016 11:06 AM
