Can't get audio HDMI output to work on ViewSonic VX2453 monitor

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Can't get audio HDMI output to work on ViewSonic VX2453 monitor

I have a 13" mid 2011 MacBook Air and a new ViewSonic VX2453 monitor. I used the Monoprice mini display port to HDMI converter with audio and connected the monitor to my computer's thunderbolt port. The video works perfectly, but the sound isn't working at all. I set my computer's sound output in settings to VX2453 series (type: HDMI), and I set my monitor's audio input to HDMI. Nothing. I also tried changing the frequency in Audio MIDI Setup, which someone recommended on amazon for the monoprice adapter, but that didn't work either.

I tested the monitor's sound by switching audio input instead to "audio in" and connected to my headphone jack, and that worked so the monitor's sound is fine.

Any advice would be greatly appreciated! Thanks.

MacBook Air (13-INCH, MID 2011), Mac OS X (10.7.4)

Posted on Jun 23, 2012 2:24 PM

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Answer 1

Jun 26, 2012 9:55 AM in response to nnt07

Yes, upon further investigation, I learned that the volume of the HDMI digital output is intended only to be controlled on the receiving device (monitor). I did learn of an extension called Soundflower, http://code.google.com/p/soundflower/, that may work. Haven't had time yet to test it.

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Answer 2

Jun 25, 2012 2:03 PM in response to nnt07

Hi - I'm just setting up my VX2453, as well. I got sound to come out of it via the same HDMI output setting on the Mac as you describe, so I think you're doing the right thing.

Be sure you've selected the correct HDMI input (?).

Related, on my monitor, the audio can't be adjusted anywhere other than through the cumbersome volume control on the monitor. That is, when playing over the HDMI on the monitor's speakers, the volume controls on the MacBook Pro no longer respond (grayed out).

Anyone know how to make the volume controls on the MBPro respond under that setup?

Thanks.

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Answer 3

nnt07 Author

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Jun 26, 2012 9:24 AM in response to RideTheWood

Thanks for the reply.

Yes, I've selected the correct HDMI input and it still isn't working.

I'm not sure whether you can control the volume on the monitor other than through the monitor, which I agree is very cumbersome.

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