Solved Detects Internal Speaker In System Preferences But No Sound Mac Pro Late 2013
Chosen Solution No boot sound and no sound when in OS (10.14.3). System Preferences shows that the internal speaker is there. I can plug in headphones and the output source changes to headphones and sound does play through them. I’ve replaced the speaker, I/O Board, and cable that connects I/O Board to logic board. I’ve tried resetting SMC and PRAM. I’ve booted to a live Linux USB and sound doesn’t work there either....