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[GH-ISSUE #1048] Cannot adjust macbook audio #627

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opened 2026-05-05 06:23:54 -06:00 by gitea-mirror · 4 comments

gitea-mirror commented

2026-05-05 06:23:54 -06:00

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Originally created by @KhoiHoang2410 on GitHub (May 25, 2022).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1048

Before opening the issue, have you...?

Searched for existing issues
Looked through the wiki
Updated MonitorControl to the latest version (if applicable)

Describe the bug

I am using M1 Pro 14 connect with LG24QP-750, the application can adjust

External monitor: brightness, contrast, volume
Macbook: brightness, not volume

My setting

Note: I have move cursor to the Macbook screen but not work

Steps to reproduce

Using macbook M1 Pro (note sure with other mac because I don't have)
Install app
Setup keyboard and displays like picture in describe section
Moving cursor to macbook monitor
Press F2 or F3 and nothing happen

Expected behavior

Able to adjust Macbook Pro Speakers volume

Anything else?

No response

Environment Information (please complete the following information)

- macOS version: 12.4
- Mac model: M1 Pro 14inch
- MonitorControl version: 4.1.0 Build 7034
- Monitor(s): LG24QP-750
- Apple Silicon/M1 (yes or no): yes

Originally created by @KhoiHoang2410 on GitHub (May 25, 2022). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1048 ### Before opening the issue, have you...? - [X] Searched for existing issues - [X] Looked through [the wiki](https://github.com/MonitorControl/MonitorControl/wiki) - [X] Updated MonitorControl to the latest version (if applicable) ### Describe the bug I am using M1 Pro 14 connect with LG24QP-750, the application can adjust - External monitor: brightness, contrast, volume - Macbook: brightness, not volume ![Screen Shot 2022-05-25 at 23 19 11](https://user-images.githubusercontent.com/45021350/170310860-1b94b694-e7c7-4495-abea-d78619d64309.png) My setting ![Screen Shot 2022-05-25 at 23 19 25](https://user-images.githubusercontent.com/45021350/170310958-9f105764-35bf-445b-95e9-74b2337b1a15.png) ![Screen Shot 2022-05-25 at 23 19 39](https://user-images.githubusercontent.com/45021350/170311014-85a242cd-2ab9-4d5c-ad73-079b870962af.png) ![Screen Shot 2022-05-25 at 23 20 15](https://user-images.githubusercontent.com/45021350/170311222-c9335107-9a6c-4e40-ac1e-3bbb4d1c03dc.png) Note: I have move cursor to the Macbook screen but not work ### Steps to reproduce - Using macbook M1 Pro (note sure with other mac because I don't have) - Install app - Setup `keyboard` and `displays` like picture in `describe` section - Moving cursor to macbook monitor - Press `F2` or `F3` and nothing happen ### Expected behavior - Able to adjust `Macbook Pro Speakers` volume ### Anything else? _No response_ ### Environment Information (please complete the following information) ```markdown - macOS version: 12.4 - Mac model: M1 Pro 14inch - MonitorControl version: 4.1.0 Build 7034 - Monitor(s): LG24QP-750 - Apple Silicon/M1 (yes or no): yes ```

gitea-mirror closed this issue

2026-05-05 06:23:56 -06:00

gitea-mirror commented

2026-05-05 06:24:00 -06:00

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@anarchy89 commented on GitHub (May 28, 2022):

hey I'm using a Mac m1 max as well. The volume feature used to work on my intel Mac. But it's not working on the m1 chip.

@anarchy89 commented on GitHub (May 28, 2022): hey I'm using a Mac m1 max as well. The volume feature used to work on my intel Mac. But it's not working on the m1 chip.

gitea-mirror commented

2026-05-05 06:24:03 -06:00

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@unfrostedpoptart commented on GitHub (May 31, 2022):

Me too! M1 Pro Macbook Pro 16". Monterey 12.5 Beta (21G5027d). Caldigit TS3-Plus dock. Two AOC CU32V3 32" Super-Curved 4K UHD monitors.
Brightness control works fine on both monitors but volume does nothing.

@unfrostedpoptart commented on GitHub (May 31, 2022): Me too! M1 Pro Macbook Pro 16". Monterey 12.5 Beta (21G5027d). Caldigit TS3-Plus dock. Two AOC CU32V3 32" Super-Curved 4K UHD monitors. Brightness control works fine on both monitors but volume does nothing.

gitea-mirror commented

2026-05-05 06:24:07 -06:00

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@waydabber commented on GitHub (Jun 2, 2022):

You can adjust the MacBook's audio with the built-in macOS audio slider. The volume control is made exlusively for DDC compatible external displays since macOS cannot control those displays natively.

@waydabber commented on GitHub (Jun 2, 2022): You can adjust the MacBook's audio with the built-in macOS audio slider. The volume control is made exlusively for DDC compatible external displays since macOS cannot control those displays natively.

gitea-mirror commented

2026-05-05 06:24:09 -06:00

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@waydabber commented on GitHub (Jun 2, 2022):

As for external monitors connected to Macs, if volume control does not respond, then there is a DDC communication issue. Probably brightness does not work as well beyond 50% only under 50% in this case (since between 0-50% the app is using software dimming, not DDC).

@waydabber commented on GitHub (Jun 2, 2022): As for external monitors connected to Macs, if volume control does not respond, then there is a DDC communication issue. Probably brightness does not work as well beyond 50% only under 50% in this case (since between 0-50% the app is using software dimming, not DDC).