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[GH-ISSUE #1118] Sound not working on both monitors? #662

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opened 2026-05-05 06:28:00 -06:00 by gitea-mirror · 3 comments

gitea-mirror commented

2026-05-05 06:28:00 -06:00

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Originally created by @wldkodiak on GitHub (Jul 24, 2022).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1118

Before opening the issue, have you...?

Searched for existing issues
Read through the Monitor-Troubleshooting Wiki
Updated MonitorControl to the latest version (if applicable)

Describe the issue

MBP 2021 M1 Max
I have volume and dimming controls registering on screen for both monitors.
Dimming works on both.
However only sound is coming out of one monitor....

I have the updated app and both screens are brand new LG HDR 4k 32"
Also noteworthy - I am running parallels on the right monitor so I can have windows.
The monitor on the left work perfectly but I am just trying to get sound to come out of the one on the right.

Thanks in advance!

Expected behavior

Need sound coming out of both monitors

Anything else?

Screen Shot 2022-07-24 at 4.21.03 PM.PDF
Screen Shot 2022-07-24 at 4.20.30 PM.PDF

Environment Information (please complete the following information)

- macOS version:
- Mac model:
- MonitorControl version:
- Monitor(s):
- Monitor Cable(s)/Connection(s):
- Apple Silicon/M1 (yes or no):

Originally created by @wldkodiak on GitHub (Jul 24, 2022). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1118 ### Before opening the issue, have you...? - [X] Searched for existing issues - [X] Read through [the Monitor-Troubleshooting Wiki](https://github.com/MonitorControl/MonitorControl/wiki/Monitor-Troubleshooting) - [X] Updated MonitorControl to the latest version (if applicable) ### Describe the issue MBP 2021 M1 Max I have volume and dimming controls registering on screen for both monitors. Dimming works on both. However only sound is coming out of one monitor.... I have the updated app and both screens are brand new LG HDR 4k 32" Also noteworthy - I am running parallels on the right monitor so I can have windows. The monitor on the left work perfectly but I am just trying to get sound to come out of the one on the right. Thanks in advance! ### Expected behavior Need sound coming out of both monitors ### Anything else? [Screen Shot 2022-07-24 at 4.21.03 PM.PDF](https://github.com/MonitorControl/MonitorControl/files/9176606/Screen.Shot.2022-07-24.at.4.21.03.PM.PDF) [Screen Shot 2022-07-24 at 4.20.30 PM.PDF](https://github.com/MonitorControl/MonitorControl/files/9176607/Screen.Shot.2022-07-24.at.4.20.30.PM.PDF) ### Environment Information (please complete the following information) ```markdown - macOS version: - Mac model: - MonitorControl version: - Monitor(s): - Monitor Cable(s)/Connection(s): - Apple Silicon/M1 (yes or no): ```

gitea-mirror closed this issue

2026-05-05 06:28:03 -06:00

gitea-mirror commented

2026-05-05 06:28:06 -06:00

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@wldkodiak commented on GitHub (Jul 24, 2022):

OK I FOUND OUT WHAT NEEDED TO HAPPEN....

So on mac I needed to open the app from apple installed on all macs. "Audio MIDI"

In there make a multi-output device and add both monitors to that.

Then right click on it and select use as output device.

BOOM audio in both monitors working perfectly.

Here is the video I used to fix the issue.

[https://www.youtube.com/watch?v=EgTx2xMTDNM]

thanks!

@wldkodiak commented on GitHub (Jul 24, 2022): OK I FOUND OUT WHAT NEEDED TO HAPPEN.... So on mac I needed to open the app from apple installed on all macs. "Audio MIDI" In there make a multi-output device and add both monitors to that. Then right click on it and select use as output device. BOOM audio in both monitors working perfectly. Here is the video I used to fix the issue. [https://www.youtube.com/watch?v=EgTx2xMTDNM] thanks!

gitea-mirror commented

2026-05-05 06:28:10 -06:00

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@wldkodiak commented on GitHub (Jul 24, 2022):

AND ONE LAST THING........

After setting in on the mac system side I had to go to the settings in parallels and select the same output setup.

When i was playing something on the mac side it would us both monitors then when i played something on the windows side it would only use that one monitor.

So I am good now everything is functioning perfectly!

@wldkodiak commented on GitHub (Jul 24, 2022): AND ONE LAST THING........ After setting in on the mac system side I had to go to the settings in parallels and select the same output setup. When i was playing something on the mac side it would us both monitors then when i played something on the windows side it would only use that one monitor. So I am good now everything is functioning perfectly!

gitea-mirror commented

2026-05-05 06:28:12 -06:00

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@waydabber commented on GitHub (Jul 26, 2022):

Yes, macOS normally uses only one audio output but you can create multi-output devices. Great solution!

I'll move this over to discussion so others might be edified!

@waydabber commented on GitHub (Jul 26, 2022): Yes, macOS normally uses only one audio output but you can create multi-output devices. Great solution! I'll move this over to discussion so others might be edified!

gitea-mirror referenced this issue

2026-05-05 07:06:20 -06:00

[PR #662] [MERGED] Some minor fixes and changes #1159