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[GH-ISSUE #828] Volume Control Not Working #527

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opened 2026-05-05 06:11:02 -06:00 by gitea-mirror · 11 comments

gitea-mirror commented

2026-05-05 06:11:02 -06:00

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Originally created by @StarChild71 on GitHub (Dec 4, 2021).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/828

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'm running macOS Monterey 12.0.1 and Monitor Control 4.0.2 Build 6965 and my monitor is a Dell U3415W

I can adjust the volume with the keyboard keys as well as from Monitor Control and it shows the changes in the Monitor's own controls. So it looks like it works, however the sound coming out from the monitor's speakers doesn't change. Even if I try to mute, the sound continues to play.

Any ideas what is going on? Thanks!

Steps to reproduce

See above.

Expected behavior

Monitor sound should go up/down as selected.

Anything else?

No response

Environment Information (please complete the following information)

- macOS version: 12.0.1
- Mac model: Mac mini
- MonitorControl version: 4.0.2 Build 6965
- Monitor(s): Dell U3415W
- Apple Silicon/M1 (yes or no): no

Originally created by @StarChild71 on GitHub (Dec 4, 2021). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/828 ### 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'm running macOS Monterey 12.0.1 and Monitor Control 4.0.2 Build 6965 and my monitor is a Dell U3415W I can adjust the volume with the keyboard keys as well as from Monitor Control and it shows the changes in the Monitor's own controls. So it looks like it works, however the sound coming out from the monitor's speakers doesn't change. Even if I try to mute, the sound continues to play. Any ideas what is going on? Thanks! ### Steps to reproduce See above. ### Expected behavior Monitor sound should go up/down as selected. ### Anything else? _No response_ ### Environment Information (please complete the following information) ```markdown - macOS version: 12.0.1 - Mac model: Mac mini - MonitorControl version: 4.0.2 Build 6965 - Monitor(s): Dell U3415W - Apple Silicon/M1 (yes or no): no ```

gitea-mirror

2026-05-05 06:11:02 -06:00

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gitea-mirror commented

2026-05-05 06:11:08 -06:00

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@ryan-ph commented on GitHub (Dec 5, 2021):

I'm also seeing the same issue for volume control. Brightness control works as expected.

- macOS version: 12.0.1
- Mac model: M1 Macbook Pro
- MonitorControl version: 4.0.2 Build 6965
- Monitor(s): Dell U3219Q
- Apple Silicon/M1 (yes or no): Yes

I'm connected over USB-C to the monitor. When using m1ddc, the command is able to set/change volume settings, but the settings don't seem to affect my audio output. Happy to help debug/test changes.

@ryan-ph commented on GitHub (Dec 5, 2021): I'm also seeing the same issue for volume control. Brightness control works as expected. ``` - macOS version: 12.0.1 - Mac model: M1 Macbook Pro - MonitorControl version: 4.0.2 Build 6965 - Monitor(s): Dell U3219Q - Apple Silicon/M1 (yes or no): Yes ``` I'm connected over USB-C to the monitor. When using m1ddc, the command is able to set/change volume settings, but the settings don't seem to affect my audio output. Happy to help debug/test changes.

gitea-mirror commented

2026-05-05 06:11:11 -06:00

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@Benjemmin commented on GitHub (Dec 5, 2021):

I'm seeing the same issue, display brightness works perfect however.

macOS version: 12.0.1
Mac model: M1 Macbook Air
MonitorControl version: 4.0.2 Build 6965
Monitor(s): HP U28
Apple Silicon/M1 (yes or no): Yes

@Benjemmin commented on GitHub (Dec 5, 2021): I'm seeing the same issue, display brightness works perfect however. - macOS version: 12.0.1 - Mac model: M1 Macbook Air - MonitorControl version: 4.0.2 Build 6965 - Monitor(s): HP U28 - Apple Silicon/M1 (yes or no): Yes

gitea-mirror commented

2026-05-05 06:11:13 -06:00

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@shhivam commented on GitHub (Dec 5, 2021):

Facing the same issue.

macOS version: 12.0.1
Mac model: M1 Macbook Air
MonitorControl version: 4.0.2 Build 6965
Monitor(s): Samsung UA32H4100
Apple Silicon/M1 (yes or no): Yes

@shhivam commented on GitHub (Dec 5, 2021): Facing the same issue. macOS version: 12.0.1 Mac model: M1 Macbook Air MonitorControl version: 4.0.2 Build 6965 Monitor(s): Samsung UA32H4100 Apple Silicon/M1 (yes or no): Yes

gitea-mirror commented

2026-05-05 06:11:14 -06:00

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@RadRadRadRadRad commented on GitHub (Dec 5, 2021):

Same issue here, brightness still works

macOS version: 12.0.1
Mac model: 2020 M1 Mac Mini
MonitorControl version: 4.0.2 Build 6965
Monitor(s): Viewsonic Elite XG270Q
Apple Silicon/M1 (yes or no): Yes

@RadRadRadRadRad commented on GitHub (Dec 5, 2021): Same issue here, brightness still works macOS version: 12.0.1 Mac model: 2020 M1 Mac Mini MonitorControl version: 4.0.2 Build 6965 Monitor(s): Viewsonic Elite XG270Q Apple Silicon/M1 (yes or no): Yes

gitea-mirror commented

2026-05-05 06:11:16 -06:00

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@brypwn commented on GitHub (Dec 7, 2021):

Same issue here, volume not working, brightness is working. External monitor connected via HDMI.
macOS version: 12.0.1
Mac model: 2020 M1 Macbook Air
MonitorControl version: 4.0.2 Build 6965
Monitor(s): Xiaomi Mi Curved 34"
Apple Silicon/M1 (yes or no): Yes

@brypwn commented on GitHub (Dec 7, 2021): Same issue here, volume not working, brightness is working. External monitor connected via HDMI. macOS version: 12.0.1 Mac model: 2020 M1 Macbook Air MonitorControl version: 4.0.2 Build 6965 Monitor(s): Xiaomi Mi Curved 34" Apple Silicon/M1 (yes or no): Yes

gitea-mirror commented

2026-05-05 06:11:17 -06:00

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@JoniVR commented on GitHub (Dec 7, 2021):

To everyone who commented here, did it work in previous versions or are you new users?

If it worked earlier, what changed on your configuration that could have caused this? (macOS version, MonitorControl version, ...)

@JoniVR commented on GitHub (Dec 7, 2021): To everyone who commented here, did it work in previous versions or are you new users? If it worked earlier, what changed on your configuration that could have caused this? (macOS version, MonitorControl version, ...)

gitea-mirror commented

2026-05-05 06:11:20 -06:00

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@the0neyouseek commented on GitHub (Dec 7, 2021):

If you're using an HDMI cable with an M1 mac, there's a known issue (see this discussion) and your device is using software control, not hardware, hence why you have no sound control.

@the0neyouseek commented on GitHub (Dec 7, 2021): If you're using an HDMI cable with an M1 mac, there's a known issue ([see this discussion](https://github.com/MonitorControl/MonitorControl/discussions/750)) and your device is using software control, not hardware, hence why you have no sound control.

gitea-mirror commented

2026-05-05 06:11:22 -06:00

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@the0neyouseek commented on GitHub (Dec 7, 2021):

MonitorControl does not support software volume control (only hardware).
If you want you can try some software designed for that :

BackgroundMusic - Free and Open Source
SoundControl - 25$ with trial
Soundsource - 47$ with trial

@the0neyouseek commented on GitHub (Dec 7, 2021): MonitorControl does not support software volume control (only hardware). If you want you can try some software designed for that : - [BackgroundMusic](https://github.com/kyleneideck/BackgroundMusic) - Free and Open Source - [SoundControl](https://staticz.com/soundcontrol/) - 25$ with trial - [Soundsource](https://rogueamoeba.com/soundsource/) - 47$ with trial

gitea-mirror commented

2026-05-05 06:11:25 -06:00

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@ryan-ph commented on GitHub (Dec 8, 2021):

If you're using an HDMI cable with an M1 mac, there's a known issue (see this discussion) and your device is using software control, not hardware, hence why you have no sound control.

Sorry, not super familiar with this, but is this the case for USB-C connections as well?

MonitorControl does not support software volume control (only hardware).

Any reason we don't/can't add support for software control? Maybe a naive question, but seems like a natural extension since the app already supports software dimming.

@ryan-ph commented on GitHub (Dec 8, 2021): > If you're using an HDMI cable with an M1 mac, there's a known issue ([see this discussion](https://github.com/MonitorControl/MonitorControl/discussions/750)) and your device is using software control, not hardware, hence why you have no sound control. Sorry, not super familiar with this, but is this the case for USB-C connections as well? > MonitorControl does not support software volume control (only hardware). Any reason we don't/can't add support for software control? Maybe a naive question, but seems like a natural extension since the app already supports software dimming.

gitea-mirror commented

2026-05-05 06:11:26 -06:00

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@Benjemmin commented on GitHub (Dec 8, 2021):

I'm using USB-C to USB-C, so I believe no HDMI protocol/connection. First time user, so I don't know if it should have worked in previous versions. I second the question from @ryan-ph, is a software implementation an option?

@Benjemmin commented on GitHub (Dec 8, 2021): I'm using USB-C to USB-C, so I believe no HDMI protocol/connection. First time user, so I don't know if it should have worked in previous versions. I second the question from @ryan-ph, is a software implementation an option?

gitea-mirror commented

2026-05-05 06:11:28 -06:00

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@waydabber commented on GitHub (Dec 8, 2021):

Hi @Benjemmin - MonitorControl will not support software volume control for direct digital outputs as that is not the scope of our application. I recommend using the apps recommended by @the0neyouseek.

@waydabber commented on GitHub (Dec 8, 2021): Hi @Benjemmin - MonitorControl will not support software volume control for direct digital outputs as that is not the scope of our application. I recommend using the apps recommended by @the0neyouseek.