[GH-ISSUE #1363] One display only dims at <50%, how to equalize? #775

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opened 2026-05-05 06:40:12 -06:00 by gitea-mirror · 4 comments

gitea-mirror commented

2026-05-05 06:40:12 -06:00

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Originally created by @bastibe on GitHub (Apr 20, 2023).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1363

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I have two external displays on a Mac Mini. Ostensibly, they are the same model, but if I change their brightness with MonitorControl, one starts dimming right away, while the other only responds if brightness <50%.

Is there a way to "equalize" their responses, so they dim similarly? DDC min/max in advanced settings sounds correct, but there's no indication what sort of values should be filled in the text fields.

Originally created by @bastibe on GitHub (Apr 20, 2023). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1363 ### Before opening the issue, have you...? - [X] Searched for existing issues ### Question I have two external displays on a Mac Mini. Ostensibly, they are the same model, but if I change their brightness with MonitorControl, one starts dimming right away, while the other only responds if brightness <50%. Is there a way to "equalize" their responses, so they dim similarly? DDC min/max in advanced settings sounds correct, but there's no indication what sort of values should be filled in the text fields.

gitea-mirror closed this issue

2026-05-05 06:40:15 -06:00

gitea-mirror commented

2026-05-05 06:40:20 -06:00

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@bastibe commented on GitHub (Apr 20, 2023):

Fantastic app, by the way! Thank you very much for developing it and putting it out here for free!

@bastibe commented on GitHub (Apr 20, 2023): Fantastic app, by the way! Thank you very much for developing it and putting it out here for free!

gitea-mirror commented

2026-05-05 06:40:24 -06:00

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@bastibe commented on GitHub (Apr 20, 2023):

Dragging one display's "Combined dimming switchover point" fully to the right improves things. The dimming curve is obviously still different, but at least they now both dim over the entire value range.

Some documentation of the advanced settings would help a lot.

@bastibe commented on GitHub (Apr 20, 2023): Dragging one display's "Combined dimming switchover point" fully to the right improves things. The dimming curve is obviously still different, but at least they now both dim over the entire value range. Some documentation of the advanced settings would help a lot.

gitea-mirror commented

2026-05-05 06:40:25 -06:00

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

The one which responds only up to 50% if using software dimming only, the DDC part of the slider does not work. Either the display does not support DDC or you are using the HDMI port which MonitorControl does not support (in this case you can use BetterDisplay as an alternative with HDMI support - all DDC features are free and unrestricted).

@waydabber commented on GitHub (Apr 20, 2023): The one which responds only up to 50% if using software dimming only, the DDC part of the slider does not work. Either the display does not support DDC or you are using the HDMI port which MonitorControl does not support (in this case you can use [BetterDisplay](https://betterdisplay.pro) as an alternative with HDMI support - all DDC features are free and unrestricted).

gitea-mirror commented

2026-05-05 06:40:28 -06:00

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@bastibe commented on GitHub (Apr 20, 2023):

Thank you very much, that explains it. One display is indeed connected via HDMI.

@bastibe commented on GitHub (Apr 20, 2023): Thank you very much, that explains it. One display is indeed connected via HDMI.