single adjustment attempt of Monitor Control. #815

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opened 2026-05-05 06:44:30 -06:00 by gitea-mirror · 1 comment

gitea-mirror commented

2026-05-05 06:44:30 -06:00

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Originally created by @tylermitchellbeach on GitHub (Sep 29, 2023).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1440

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 have no idea what Im doing just to preface this. I'm bad ass at making epic videos but I know how to flush my caches and respect the PMC on my old Macbook in terminal lol

Someone help haha

As I said, lost audio, reduced to 50% brightness on 27" Cinema Display, that has a display port to usb c dongle into my M1 Mac Mini.

I literally just bought this Mac Mini and installed FCPX and all my plugins onto a factory reset unit(fresh version of Sonora 14.0) so that I could work on two videos at once bouncing back and fourth with my new MBP allow for either machine to render and then progress on the other one..

The LED display seems to be the only one having issues. The portable 15.6 KYY Amazon special plugged in via HDMI works as expected..

Steps to reproduce

Install, open, adjust brightness bar on drop down app. control. Instantly cut audio, 50% or less brightness despite brightness control reading 100%

Expected behavior

Audio level becomes adjustable as does screen brightness...

Anything else?

No response

Environment Information (please complete the following information)

- macOS version: Sonoma 14.0
- Mac model: 2020 M1 Mac mini
- MonitorControl version: 4.2.0
- Monitor(s):27" Led Cinema Display connected via Display Port to USB C Dongle, 15.6" KYY connected via HDMI
- Apple Silicon/M1 (yes or no): Yes

Originally created by @tylermitchellbeach on GitHub (Sep 29, 2023). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1440 ### 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 I have no idea what Im doing just to preface this. I'm bad ass at making epic videos but I know how to flush my caches and respect the PMC on my old Macbook in terminal lol Someone help haha As I said, lost audio, reduced to 50% brightness on 27" Cinema Display, that has a display port to usb c dongle into my M1 Mac Mini. I literally just bought this Mac Mini and installed FCPX and all my plugins onto a factory reset unit(fresh version of Sonora 14.0) so that I could work on two videos at once bouncing back and fourth with my new MBP allow for either machine to render and then progress on the other one.. The LED display seems to be the only one having issues. The portable 15.6 KYY Amazon special plugged in via HDMI works as expected.. ### Steps to reproduce Install, open, adjust brightness bar on drop down app. control. Instantly cut audio, 50% or less brightness despite brightness control reading 100% ### Expected behavior Audio level becomes adjustable as does screen brightness... ### Anything else? _No response_ ### Environment Information (please complete the following information) ```markdown - macOS version: Sonoma 14.0 - Mac model: 2020 M1 Mac mini - MonitorControl version: 4.2.0 - Monitor(s):27" Led Cinema Display connected via Display Port to USB C Dongle, 15.6" KYY connected via HDMI - Apple Silicon/M1 (yes or no): Yes ```

gitea-mirror closed this issue

2026-05-05 06:44:32 -06:00

gitea-mirror commented

2026-05-05 06:44:35 -06:00

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@waydabber commented on GitHub (Oct 6, 2023):

Please change the DDC range to 0-255 instead of the standar 0-100. Check out the several discussion threads about cinema displays! :)

@waydabber commented on GitHub (Oct 6, 2023): Please change the DDC range to 0-255 instead of the standar 0-100. Check out the several discussion threads about cinema displays! :)