Currently Being ModeratedAug 2, 2010 3:20 AM (in response to Pablo Cabistani)HDMI is a digital format that outputs the signal to the TV for decoding and presentation. You cannot adjust the level of the digital signal coming from the Mac. It works this way with optical audio output as well.
In other words, it's just the way it is.A collection of clinking, clanking, clattering caliginous junk., Mac OS 8.6 or Earlier, PDP11
Currently Being ModeratedAug 26, 2010 7:39 PM (in response to DaddyPaycheck)Well, you can control the volume through the iTunes slider (or through the YouTube window, etc.), so it is possible. It would be nice if you could control it through the keyboard controls on the Mac.MacBook, Mac OS X (10.4.8)
Currently Being ModeratedAug 28, 2010 10:23 AM (in response to tofergregg)In those cases you are effecting the audio at the source, before it has passed through the audio chip on the logic board and sent to the output device.
Perhaps a 3rd party app such as Jack OS X can be set up in some fashion to assist you in accomplishing what you want.
Dah•veedEarly '09 Mac mini - 2GB RAM, Early '06 17" iMac CD - 2 GB RAM, Mac OS X (10.6.4), Happily using Macs since 1984!
Currently Being ModeratedAug 28, 2010 11:27 AM (in response to tofergregg)You can always use the cmd+up-arrow & cmd + down-arrow when in itunes for volume control.
Don't know if thats any help?Mac Mini, Mac OS X (10.6.4), Magic Tracker (cool)
Currently Being ModeratedNov 9, 2011 2:58 PM (in response to Pablo Cabistani)
I have the same problem with my Macbook pro 2010. What's wierd is that if you're running windows on mac you CAN adjust HDMI device volume using keyboard.
I'm using mini dispay-HDMI cable (the cheapest one that I've found).
Seems like it's software fault.
Currently Being ModeratedJan 6, 2012 9:34 PM (in response to SamsungGalaxySux)
Are you using HDMI to a monitor or a TV?
Are you saying that "if you're running windows on mac you CAN adjust HDMI device volume using keyboard." and therefore you see the TV's volume change?
Currently Being ModeratedJan 6, 2012 9:42 PM (in response to Jabb the Duck)
So can I make it so when I'm in itunes, Hulu desktop, Netflix browser and FrontRow with my mini connecte thru HDMI to my TV that F10, F11, and F12 control the volume?
Do I need 3rd party software or can I use system preferences/keyboard shortcuts?
Currently Being ModeratedJan 9, 2012 7:03 AM (in response to Pablo Cabistani)
I'm using HDMI with TV. And yes, the TV's volume change.
I don't know any 3rd party software except soundflower but it didn't worked for me.