[GH-ISSUE #932] Control only volume via DDC #576

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opened 2026-05-05 06:16:56 -06:00 by gitea-mirror · 2 comments

gitea-mirror commented

2026-05-05 06:16:56 -06:00

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Originally created by @lloeki on GitHub (Feb 3, 2022).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/932

Before opening the issue, have you...?

Searched for existing issues

I have two identical LG 4K displays on a Mac Mini M1.

As is known:

Only one display can be connected over USB-C, the other one must be HDMI
Internal HDMI blocks DDC

So to keep brightness consistent between both I use Software (gamma) mode, forcing it on the USB-C display. Still, I would like to keep being able to adjust volume via DDC.

Describe the solution you'd like

Have "Use hardware DDC control" per-display checkbox split into "Use hardware DDC control for picture" and "Use hardware DDC control for volume", or something to that effect in the advanced mode table that would allow me to uncheck the former but still check the latter.

Describe alternatives you've considered

I tried tricking it using advanced settings:

unticking "brightness available" completely disables the USB-C screen's control, even by software.
moving the "combined dimming switchover point" all the way to the right in hopes it would give up on ddc and favour software only produces unsatisfactory results.

Anything else?

No response

Originally created by @lloeki on GitHub (Feb 3, 2022). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/932 ### Before opening the issue, have you...? - [X] Searched for existing issues ### Is your feature request related to a problem? Please describe I have two identical LG 4K displays on a Mac Mini M1. As is known: - Only one display can be connected over USB-C, the other one must be HDMI - Internal HDMI blocks DDC So to keep brightness consistent between both I use Software (gamma) mode, forcing it on the USB-C display. Still, I would like to keep being able to adjust volume via DDC. ### Describe the solution you'd like Have "Use hardware DDC control" per-display checkbox split into "Use hardware DDC control for picture" and "Use hardware DDC control for volume", or something to that effect in the advanced mode table that would allow me to uncheck the former but still check the latter. ### Describe alternatives you've considered I tried tricking it using advanced settings: - unticking "brightness available" completely disables the USB-C screen's control, even by software. - moving the "combined dimming switchover point" all the way to the right in hopes it would give up on ddc and favour software only produces unsatisfactory results. ### Anything else? _No response_

gitea-mirror

2026-05-05 06:16:56 -06:00

closed this issue
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Status: Abandoned

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gitea-mirror commented

2026-05-05 06:17:01 -06:00

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@waydabber commented on GitHub (Feb 5, 2022):

You are right, there is no way to achieve this now. Probably Brightness DDC unavailable when hardware DDC control is enabled should kick in software mode.

@waydabber commented on GitHub (Feb 5, 2022): You are right, there is no way to achieve this now. Probably Brightness DDC unavailable when hardware DDC control is enabled should kick in software mode.

gitea-mirror commented

2026-05-05 06:17:02 -06:00

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@stale[bot] commented on GitHub (Feb 5, 2023):

Hey there, it looks like there has been no activity on this issue recently. Has the issue been fixed, or does it still require attention? This issue may be closed if no further activity occurs. Thank you for your contributions.

@stale[bot] commented on GitHub (Feb 5, 2023): Hey there, it looks like there has been no activity on this issue recently. Has the issue been fixed, or does it still require attention? This issue may be closed if no further activity occurs. Thank you for your contributions.