[GH-ISSUE #612] Audio Control for DELL S2721DGF not working #441

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opened 2026-05-05 05:59:57 -06:00 by gitea-mirror · 3 comments

gitea-mirror commented

2026-05-05 05:59:57 -06:00

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Originally created by @doulakis on GitHub (Sep 21, 2021).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/612

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

Hey Guys, I cannot control audio for my DELL S2721DGF. It is connected through HDMI. Contrast is working fine.

Steps to reproduce

Audio Control adjustments doesn't represent the expected behavior, it seems that the audio changes in the Icon but the audio remains at the max level.

Expected behavior

Ability to change Audio

Anything else?

No response

Environment Information (please complete the following information)

- macOS version: 11.5.2
- Mac model: MacBook Pro mid 2014
- MonitorControl version: 3.0.0 (Tested the other version you provided in a bug)
- Monitor(s): DELL S2721DGF
- Apple Silicon/M1 (yes or no): no

Originally created by @doulakis on GitHub (Sep 21, 2021). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/612 ### 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 Hey Guys, I cannot control audio for my DELL S2721DGF. It is connected through HDMI. Contrast is working fine. ### Steps to reproduce Audio Control adjustments doesn't represent the expected behavior, it seems that the audio changes in the Icon but the audio remains at the max level. ### Expected behavior Ability to change Audio ### Anything else? _No response_ ### Environment Information (please complete the following information) ```markdown - macOS version: 11.5.2 - Mac model: MacBook Pro mid 2014 - MonitorControl version: 3.0.0 (Tested the other version you provided in a bug) - Monitor(s): DELL S2721DGF - Apple Silicon/M1 (yes or no): no ```

gitea-mirror

2026-05-05 05:59:57 -06:00

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gitea-mirror commented

2026-05-05 06:00:04 -06:00

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@waydabber commented on GitHub (Sep 21, 2021):

This seems to be a display issue. If contrast works then DDC communication in general works between the display and the app. Please try ddcctl and see if the display accepts volume commands using that tool. If not, then there is probably not much to do about it, maybe you can find some setting in the monitor OSD that blocks volume changes somehow.

@waydabber commented on GitHub (Sep 21, 2021): This seems to be a display issue. If contrast works then DDC communication in general works between the display and the app. Please try ddcctl and see if the display accepts volume commands using that tool. If not, then there is probably not much to do about it, maybe you can find some setting in the monitor OSD that blocks volume changes somehow.

gitea-mirror commented

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

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@waydabber commented on GitHub (Sep 21, 2021):

Please let me know if I can help with this in any way. Until that time I'll close the issue as there is nothing to do on MonitorControl's side at the moment. Thank you!

@waydabber commented on GitHub (Sep 21, 2021): Please let me know if I can help with this in any way. Until that time I'll close the issue as there is nothing to do on MonitorControl's side at the moment. Thank you!

gitea-mirror commented

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

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@Craiting commented on GitHub (Sep 28, 2021):

I have the same monitor and same issue. Brightness controls work but not volume. I tried using ddcctl and again I could control brightness but not the volume.

@Craiting commented on GitHub (Sep 28, 2021): I have the same monitor and same issue. Brightness controls work but not volume. I tried using ddcctl and again I could control brightness but not the volume.