[GH-ISSUE #1244] Monterey last update doesn't allow me to control brightness limits #719

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opened 2026-05-05 06:34:52 -06:00 by gitea-mirror · 1 comment

gitea-mirror commented

2026-05-05 06:34:52 -06:00

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Originally created by @luco on GitHub (Dec 5, 2022).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1244

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

I can't set DDC min/max. On the previous version of Monterey I was able to set it.

Right now I'm stuck in 50% bright. in Cinema Display

Steps to reproduce

Described below.

Expected behavior

Able to set DDC min and max.

Anything else?

No response

Environment Information (please complete the following information)

- macOS version:12.6.1 (
- Mac model: Mac Mini 2018
- MonitorControl version: 4.1.0
- Monitor(s): Apple Cinema Display
- Apple Silicon/M1 (yes or no): no

Originally created by @luco on GitHub (Dec 5, 2022). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1244 ### 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 ![image](https://user-images.githubusercontent.com/246373/205693107-837ca422-e122-4b2b-b21e-1c8804f98324.png) I can't set DDC min/max. On the previous version of Monterey I was able to set it. Right now I'm stuck in 50% bright. in Cinema Display ### Steps to reproduce Described below. ### Expected behavior Able to set DDC min and max. ### Anything else? _No response_ ### Environment Information (please complete the following information) ```markdown - macOS version:12.6.1 ( - Mac model: Mac Mini 2018 - MonitorControl version: 4.1.0 - Monitor(s): Apple Cinema Display - Apple Silicon/M1 (yes or no): no ```

gitea-mirror closed this issue

2026-05-05 06:34:54 -06:00

gitea-mirror commented

2026-05-05 06:35:00 -06:00

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

Hi there, it seems like the display is now detected as supported Apple display (which should be good news if brightness control is working). This should mean that Apple re-added native control for this display (so DDC is not being used).

@waydabber commented on GitHub (Jan 20, 2023): Hi there, it seems like the display is now detected as supported Apple display (which should be good news if brightness control is working). This should mean that Apple re-added native control for this display (so DDC is not being used).

gitea-mirror referenced this issue

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

[PR #719] [MERGED] Restore software brightness upon startup + some other tweaks. #1191