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[GH-ISSUE #1289] Generally improve mute compatibility #736

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opened 2026-05-05 06:36:24 -06:00 by gitea-mirror · 4 comments

gitea-mirror commented

2026-05-05 06:36:24 -06:00

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Originally created by @dannymout on GitHub (Jan 17, 2023).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1289

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

I'm having troubles getting mute to work properly on my 32UN880-B. It's connected to a 2021 MBP over USB-C, and I'm using speakers connected to the 3.5mm audio output on the monitor.

Volume controls work with the keyboard & menu bar app, but when going down to the last tick or hitting the mute button, my speakers don't go fully silent. My monitor's OSD shows muted though.
When I fully lower volume or mute through the monitor OSD, it works fine.
Mute works fine through macOS if I don't plug in external speakers to the monitor.

Expected behavior

I'm expecting no output from my monitor's audio when I turn the volume all the way down or hit mute.

Anything else?

Using m1ddc and set mute on command, my speakers mute properly & the OSD indicates that.
After running set mute off and then set volume 0 audio still comes through.

The macOS volume UI didn't update to reflect these updates after I ran the commands, not sure if that's normal.

Environment Information (please complete the following information)

- macOS version: Ventura 13.0
- Mac model: MacBook Pro (14 inch, 2021)
- MonitorControl version: 4.1.0
- Monitor(s): LG 32UN880-B
- Monitor Cable(s)/Connection(s): USB-C
- Apple Silicon/M1 (yes or no): Yes

Originally created by @dannymout on GitHub (Jan 17, 2023). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1289 ### 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 I'm having troubles getting mute to work properly on my 32UN880-B. It's connected to a 2021 MBP over USB-C, and I'm using speakers connected to the 3.5mm audio output on the monitor. - Volume controls work with the keyboard & menu bar app, but when going down to the last tick or hitting the mute button, my speakers don't go fully silent. My monitor's OSD shows muted though. - When I fully lower volume or mute through the monitor OSD, it works fine. - Mute works fine through macOS if I don't plug in external speakers to the monitor. ### Expected behavior I'm expecting no output from my monitor's audio when I turn the volume all the way down or hit mute. ### Anything else? - Using `m1ddc` and `set mute on` command, my speakers mute properly & the OSD indicates that. - After running `set mute off` and then `set volume 0` audio still comes through. The macOS volume UI didn't update to reflect these updates after I ran the commands, not sure if that's normal. ### Environment Information (please complete the following information) ```markdown - macOS version: Ventura 13.0 - Mac model: MacBook Pro (14 inch, 2021) - MonitorControl version: 4.1.0 - Monitor(s): LG 32UN880-B - Monitor Cable(s)/Connection(s): USB-C - Apple Silicon/M1 (yes or no): Yes ```

gitea-mirror

2026-05-05 06:36:24 -06:00

closed this issue
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gitea-mirror commented

2026-05-05 06:36:34 -06:00

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@waydabber commented on GitHub (Jan 20, 2023):

Hi @dannymout - would you be willing to check if any of these settings make things work right? I tried to cover all possible scenarios in BetterDisplay to fix various mute incompatibilities, any feedback is appreciated:

https://github.com/waydabber/BetterDisplay/issues/1248

@waydabber commented on GitHub (Jan 20, 2023): Hi @dannymout - would you be willing to check if any of these settings make things work right? I tried to cover all possible scenarios in BetterDisplay to fix various mute incompatibilities, any feedback is appreciated: https://github.com/waydabber/BetterDisplay/issues/1248

gitea-mirror commented

2026-05-05 06:36:36 -06:00

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@dannymout commented on GitHub (Jan 21, 2023):

I installed BetterDisplay, rebooted and opened it. Everything works as expected through BetterDisplay, with mute and the lowest volume setting in sync on the OSD and in macOS.

I tried Leave mute key under OS control just to see what would happen, and it wouldn't let me mute at all. The macOS mute HUD would come up with a crossed out circle.

@dannymout commented on GitHub (Jan 21, 2023): I installed BetterDisplay, rebooted and opened it. Everything works as expected through BetterDisplay, with mute and the lowest volume setting in sync on the OSD and in macOS. I tried **Leave mute key under OS control** just to see what would happen, and it wouldn't let me mute at all. The macOS mute HUD would come up with a crossed out circle.

gitea-mirror commented

2026-05-05 06:36:38 -06:00

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@dannymout commented on GitHub (Jan 21, 2023):

Just looked at #892, and I enabled Enable Mute DDC command in advanced settings and mute is also working through MonitorControl too.

When I lower the volume all the way in macOS, the OSD only goes as low as 6 / 100 volume on my monitor. It still goes silent so it's not an issue for me, but when I used BetterDisplay, my OSD would also go all the way to 0.

@dannymout commented on GitHub (Jan 21, 2023): Just looked at #892, and I enabled **Enable Mute DDC command** in advanced settings and mute is also working through MonitorControl too. When I lower the volume all the way in macOS, the OSD only goes as low as 6 / 100 volume on my monitor. It still goes silent so it's not an issue for me, but when I used BetterDisplay, my OSD would also go all the way to 0.

gitea-mirror commented

2026-05-05 06:36:40 -06:00

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@waydabber commented on GitHub (Jan 24, 2023):

That's because the current versions of BetterDisplay try to maximize compatibility by both setting the volume to zero and issuing a mute DDC command as default. MC on the other hand, when Enable Mute DDC command is enabled for the display, will not turn the volume to zero but issue a mute DDC command only. This should work equally well for compliant displays on a practical level.

@waydabber commented on GitHub (Jan 24, 2023): That's because the current versions of BetterDisplay try to maximize compatibility by both setting the volume to zero and issuing a mute DDC command as default. MC on the other hand, when `Enable Mute DDC command` is enabled for the display, will not turn the volume to zero but issue a mute DDC command only. This should work equally well for compliant displays on a practical level.

gitea-mirror referenced this issue

2026-05-05 07:07:14 -06:00

[PR #736] [MERGED] Various fixes and improvements for 4.0.0 #1192