MBP 2019 DisplayPort Audio Not Working

I'm trying to use external speakers connected to my monitor via 3.5mm audio cable. I have tested this setup using a PC connected via DisplayPort to the monitor, but am not able to get that same port to work with my MBP. I have listed below the hardware and tested fixes. I wanted to also note the monitor appears in my settings an available audio device, but no sound every comes out of the speakers.

Hardware

MacBook Pro (16-inch, 2019)

LG 32GK850F-B

USB-C -> DisplayPort Cable

Tested Fixes

Reset NVRAM, PRAM, and SMC

Restarted Machine (several times)

MacBook Pro 16″, macOS 10.15

Posted on Sep 21, 2020 9:20 AM

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2 replies

Sep 26, 2020 3:54 PM in response to ahamill85

Hello ahamill85,

Thank you for using Apple Support Communities!

We understand from your post that you are not getting any sound from your LG 32GK850F-B 32 Inch UltraGear™ QHD Gaming Monitor with Radeon FreeSync™ 2 Technology. From the specifications it looks like this monitor is only compatible with Windows 10. You may need to contact LG for additional support.

LG 32GK850F-B : 32GK850F-B 32 Inch UltraGear™ QHD Gaming Monitor with Radeon FreeSync™ 2 Technology | LG USA

Get Product Help & Support | LG USA Support

Best Regards.

ahamill85 Author

Level 1

4 points

Sep 26, 2020 6:33 PM in response to Alwayswantingtohelp1

I guess I assumed that the MacBook and the monitor both supported some sort of Thunderbolt/DisplayPort standard and should work. This is somewhat disappointing.

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MBP 2019 DisplayPort Audio Not Working