[GH-ISSUE #979] MacBook Pro screen brightens automatically #593

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opened 2026-05-05 06:19:27 -06:00 by gitea-mirror · 1 comment

gitea-mirror commented

2026-05-05 06:19:27 -06:00

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Originally created by @artgoldberg on GitHub (Mar 18, 2022).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/979

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

MonitorControl brightness controls MacBook Pro screen, but it automatically gets brighter and too bright soon after.
Same problem occurs with the brightness control on the Touch Bar.

Expected behavior

Brightness of MacBook Pro screen stays at level I select.

Anything else?

I use f.lux, but cannot find "Avoid gamma table manipulation" under Preferences » Displays. F.lux is current version 41.4.

Environment Information (please complete the following information)

- macOS version: 11.6
- Mac model: MacBook Pro (13-inch 2020)
- MonitorControl version: 4.0.2
- Monitor(s): 2 ViewSonic VA2055Sm monitors
- Monitor Cable(s)/Connection(s): DVI  - USB 3.1 and VGA - StarTech MDP2VGA - 4K UHD - USB 3.1
- Apple Silicon/M1 (yes or no): no, Intel Core i7

Originally created by @artgoldberg on GitHub (Mar 18, 2022). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/979 ### 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 MonitorControl brightness controls MacBook Pro screen, but it automatically gets brighter and too bright soon after. Same problem occurs with the brightness control on the Touch Bar. ### Expected behavior Brightness of MacBook Pro screen stays at level I select. ### Anything else? I use f.lux, but cannot find "Avoid gamma table manipulation" under Preferences » Displays. F.lux is current version 41.4. ### Environment Information (please complete the following information) ```markdown - macOS version: 11.6 - Mac model: MacBook Pro (13-inch 2020) - MonitorControl version: 4.0.2 - Monitor(s): 2 ViewSonic VA2055Sm monitors - Monitor Cable(s)/Connection(s): DVI - USB 3.1 and VGA - StarTech MDP2VGA - 4K UHD - USB 3.1 - Apple Silicon/M1 (yes or no): no, Intel Core i7 ```

gitea-mirror closed this issue

2026-05-05 06:19:28 -06:00

gitea-mirror commented

2026-05-05 06:19:34 -06:00

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Owner

@the0neyouseek commented on GitHub (Mar 19, 2022):

Hi @artgoldberg

Your brightness may be changing because of the system option "Automatically adjust brightness" that adjust brightness using the value from your macbook ambient light sensor.

You can disable this options following this guide https://support.apple.com/guide/mac-help/change-your-displays-brightness-mchlp2704/mac

Also, here's where the "Avoid gamma table manipulation" option is located in app settings.
pref_4

Tell me if fixes you issue so I can close this.
Have a nice day.

@the0neyouseek commented on GitHub (Mar 19, 2022): Hi @artgoldberg Your brightness may be changing because of the system option "Automatically adjust brightness" that adjust brightness using the value from your macbook ambient light sensor. You can disable this options following this guide https://support.apple.com/guide/mac-help/change-your-displays-brightness-mchlp2704/mac Also, here's where the "Avoid gamma table manipulation" option is located in app settings. <img width="412" alt="pref_4" src="https://user-images.githubusercontent.com/4009175/159115127-02ff1739-fc7c-4f04-a889-3e79d789e5a0.png"> Tell me if fixes you issue so I can close this. Have a nice day.