I have the 17ea plugged into my MacMini using an HDMI cable. I am not able to get sound using that cable (nothing shows up indicating that as a choice as illustrated on the Windows help diagrams)
So I plugged in an audio cable from MacMini headphone jack directly into the audio port provided on the back of the HP 27ea.
There are two speakers on the back of the monitor, two audio jacks; input & output (called "sub") I've checked all the settings in the Utilities, even the Audio Midi set up as suggested.
None of my Mac settings display the 27ea monitor as an output for the audio. When I plug in the audio jack to the MacMini sound does come out of the MacMini from all programs (into headphones, other speakers, etc.) but when I plug the same cable (& I've tried different cables) NO sound comes out of the 27ea.
This monitor was sold with the capability of producing sound from the monitor. But there is very little in depth support from HP for making this happen, especially with a Mac product.
I need to know if they are compatible and should work or not compatible and never will.
If it should work and doesn't I need to exchange for a new monitor.
If it isn't going to work, I need to return for credit and get a different monitor.