[GH-ISSUE #1112] Volume control does not work through the HDMI port of M1 macs #657

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opened 2026-05-05 06:27:10 -06:00 by gitea-mirror · 1 comment

gitea-mirror commented

2026-05-05 06:27:10 -06:00

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Originally created by @ghost on GitHub (Jul 9, 2022).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1112

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

The volume slider doesn't work at all on my screen. Only physical keys can change volume.

Expected behavior

Using the slider in MonitorControl should change volume.

Anything else?

No response

Environment Information (please complete the following information)

- macOS version: 12.4
- Mac model: M1 mini
- MonitorControl version: latest
- Monitor(s): Just one, C49J89x
- Monitor Cable(s)/Connection(s): HDMI
- Apple Silicon/M1 (yes or no): yes

Originally created by @ghost on GitHub (Jul 9, 2022). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1112 ### 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 The volume slider doesn't work at all on my screen. Only physical keys can change volume. ### Expected behavior Using the slider in MonitorControl should change volume. ### Anything else? _No response_ ### Environment Information (please complete the following information) ```markdown - macOS version: 12.4 - Mac model: M1 mini - MonitorControl version: latest - Monitor(s): Just one, C49J89x - Monitor Cable(s)/Connection(s): HDMI - Apple Silicon/M1 (yes or no): yes ```

gitea-mirror closed this issue

2026-05-05 06:27:11 -06:00

gitea-mirror commented

2026-05-05 06:27:15 -06:00

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@waydabber commented on GitHub (Jul 9, 2022):

If you connect the display via the HDMI port of the M1 Mini, DDC control won't work as this port does not relay DDC commands. You need to use USB-C. If the display firmware supports it, you'll be able to control the volume that way.

@waydabber commented on GitHub (Jul 9, 2022): If you connect the display via the HDMI port of the M1 Mini, DDC control won't work as this port does not relay DDC commands. You need to use USB-C. If the display firmware supports it, you'll be able to control the volume that way.

gitea-mirror referenced this issue

2026-05-05 07:06:18 -06:00

[PR #657] [MERGED] Update Chinese (Traditional, Taiwan) translation #1155