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Mohinder1947

macrumors newbie
Original poster
Jan 23, 2021
3
0
Hi, I have a 34" iiyama wide screen monitor [GB3461WQSU] connected to my Mac Mini via Display Port. I have been able to achieve a resolution of 3440 x 1440 using this cable : https://www.amazon.co.uk/gp/product/B08736Q26B/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1 but no matter what I have tried I cannot output sound from the monitor using display port. The monitor is not listed in either the volume drop down from the tool bar or the Output in Sound of System Preferences.

When I use the same display port cable to connect the monitor to my Mac Book Pro [Late 2012 model] I am able to ouput sound from the monitor speakers.

Any ideas what the issue may be? I am running Mojave on both Macs. I include some screen shots if it can help. I would really like to take advantage of the much higher and correctly scaled resolution offered via the Display Port, compared to the lower and stretched out resolution from HDMI, but sound would also be great!


Mac Mini - Display Port - No Option to Select Monitor Speakers:
Mac Mini - Display Port - No Sound  copy.jpg


Mac Book Pro - Display Port - Option to Select Monitor Speakers
Mac Book Pro - Display Port - Sound.png



Mac Mini - Connected to monitor via HDMI - Option to select sound from monitor speakers :

Mac Mini - HDMI - Sound.jpg
 

Attachments

  • Mac Mini - Display Port - No Sound .png
    Mac Mini - Display Port - No Sound .png
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  • Mac Book Pro - Display Port - Sound.png
    Mac Book Pro - Display Port - Sound.png
    396.2 KB · Views: 91
  • Mac Mini - HDMI - Sound.png
    Mac Mini - HDMI - Sound.png
    225.6 KB · Views: 148
Last edited:

Mohinder1947

macrumors newbie
Original poster
Jan 23, 2021
3
0
Well there's your issue, audio output isn't supported over mini DP on that model. Audio output is either through the line out or the HDMI port.
Wow, really!? That definitely surprises me. I did try to look for information regarding Display Port and audio output through it on Macs, but didn't come across anything suggesting some couldn't handle it.

Sincere thanks for the reply. I can stop banging my head against a brick wall trying to achieve the improbable now! lol
 
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