[GH-ISSUE #1509] Max display Brightness significantley lowered after app install #847

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opened 2026-05-05 06:46:15 -06:00 by gitea-mirror · 2 comments

gitea-mirror commented

2026-05-05 06:46:15 -06:00

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Originally created by @jacobgeorgeband on GitHub (Jan 17, 2024).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1509

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

After download and opening monitor control my max display brightness was significantly lower than before at max sliding to the right. I tried restarting my Mac mini m2pro and uninstalling the app to try to fix but the brightness is staying the lowered brightness (max brightness of monitor control but lower than pre installation of the app.) Help!

Expected behavior

I expected the app to function properly allowing the max brightness to be the original max brightness. The scale is all wrong.

Anything else?

macOS Version: 14.2.1 Sonoma
Mac model: Mac mini M2pro
MonitorControl version: latest
Monitor: Apple Cinema Display

Environment Information (please complete the following information)

- macOS version:
- Mac model:
- MonitorControl version:
- Monitor(s):
- Monitor Cable(s)/Connection(s):
- Apple Silicon/M1 (yes or no):

Originally created by @jacobgeorgeband on GitHub (Jan 17, 2024). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1509 ### 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 After download and opening monitor control my max display brightness was significantly lower than before at max sliding to the right. I tried restarting my Mac mini m2pro and uninstalling the app to try to fix but the brightness is staying the lowered brightness (max brightness of monitor control but lower than pre installation of the app.) Help! ### Expected behavior I expected the app to function properly allowing the max brightness to be the original max brightness. The scale is all wrong. ### Anything else? - macOS Version: 14.2.1 Sonoma - Mac model: Mac mini M2pro - MonitorControl version: latest - Monitor: Apple Cinema Display ### Environment Information (please complete the following information) ```markdown - macOS version: - Mac model: - MonitorControl version: - Monitor(s): - Monitor Cable(s)/Connection(s): - Apple Silicon/M1 (yes or no): ```

gitea-mirror closed this issue

2026-05-05 06:46:16 -06:00

gitea-mirror commented

2026-05-05 06:46:19 -06:00

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Owner

@jacobgeorgeband commented on GitHub (Jan 18, 2024):

Fixed my issue, set DDC max to 255 in "Displays" advanced settings of the monitor control app.

@jacobgeorgeband commented on GitHub (Jan 18, 2024): Fixed my issue, set DDC max to 255 in "Displays" advanced settings of the monitor control app.

gitea-mirror commented

2026-05-05 06:46:22 -06:00

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@waydabber commented on GitHub (Jan 18, 2024):

Yes, this is the right solution to this issue, sorry for not responding earlier.

@waydabber commented on GitHub (Jan 18, 2024): Yes, this is the right solution to this issue, sorry for not responding earlier.