[GH-ISSUE #1469] Max brightness at 50% of slider #831

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opened 2026-05-05 06:45:25 -06:00 by gitea-mirror · 1 comment

gitea-mirror commented

2026-05-05 06:45:25 -06:00

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Originally created by @JuliusNmn on GitHub (Nov 18, 2023).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1469

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

Brightness Range seems to be incorrect. My monitor reaches max brightness at 50% of the slider range.

Expected behavior

50% of the slider should get me 50% brightness.

Anything else?

No response

Environment Information (please complete the following information)

- macOS version: 14.0 (23A344)
- Mac model: MacBook Pro 14-inch, 2021
- MonitorControl version: 4.2.0
- Monitor(s): Samsung U32J59x
- Monitor Cable(s)/Connection(s): USB hub
- Apple Silicon/M1 (yes or no): yes

Originally created by @JuliusNmn on GitHub (Nov 18, 2023). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1469 ### 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 Brightness Range seems to be incorrect. My monitor reaches max brightness at 50% of the slider range. ### Expected behavior 50% of the slider should get me 50% brightness. ### Anything else? _No response_ ### Environment Information (please complete the following information) ```markdown - macOS version: 14.0 (23A344) - Mac model: MacBook Pro 14-inch, 2021 - MonitorControl version: 4.2.0 - Monitor(s): Samsung U32J59x - Monitor Cable(s)/Connection(s): USB hub - Apple Silicon/M1 (yes or no): yes ```

gitea-mirror closed this issue

2026-05-05 06:45:26 -06:00

gitea-mirror commented

2026-05-05 06:45:29 -06:00

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@waydabber commented on GitHub (Nov 18, 2023):

Hi, it seems like the connection or the display does not support hardware brightness control which the app uses by default in the 50-100% range. Try disabling DDC for this display so the app uses software dimming for the entire range.

@waydabber commented on GitHub (Nov 18, 2023): Hi, it seems like the connection or the display does not support hardware brightness control which the app uses by default in the 50-100% range. Try disabling DDC for this display so the app uses software dimming for the entire range.