[GH-ISSUE #1474] macOS 14.2 beta 4 bug: brightness slider not working #833

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opened 2026-05-05 06:45:32 -06:00 by gitea-mirror · 2 comments

gitea-mirror commented

2026-05-05 06:45:32 -06:00

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Originally created by @chadmundoholding on GitHub (Dec 1, 2023).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1474

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

The brightness change functions, however the bar will not visually slide, upon the newest update. It would be hard to show by screenshots. Essentially, if I try sliding the brightness, the brightness immediately changes, but the new, correct placement is only visible upon hiding, then re-showing MonitorControl. The sound slider bar works just as before. When I setup the percents, those change right away, but the slider not so much. It will occasionally move, if I have more settings on.

Steps to reproduce

Click on MonitorControl in the Menu Bar
Click or drag the brightness slider bar to increase or decrease the brightness
If the position didn't change, but the brightness did, then click on MonitorControl to hide it
Click again into MonitorControl, and see that it has now moved

Expected behavior

The slider should react immediately and move when I click it.

Anything else?

Above screenshot shows, I clicked to lower the brightness, the percent agrees with what I am seeing, however the slider is still well over 50%

Environment Information (please complete the following information)

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

Originally created by @chadmundoholding on GitHub (Dec 1, 2023). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1474 ### 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 The brightness change functions, however the bar will not visually slide, upon the newest update. It would be hard to show by screenshots. Essentially, if I try sliding the brightness, the brightness immediately changes, but the new, correct placement is only visible upon hiding, then re-showing MonitorControl. The sound slider bar works just as before. When I setup the percents, those change right away, but the slider not so much. It will occasionally move, if I have more settings on. ### Steps to reproduce 1. Click on MonitorControl in the Menu Bar 2. Click or drag the brightness slider bar to increase or decrease the brightness 3. If the position didn't change, but the brightness did, then click on MonitorControl to hide it 4. Click again into MonitorControl, and see that it has now moved ### Expected behavior The slider should react immediately and move when I click it. ### Anything else? ![Screenshot 2023-12-01 at 1 02 37 AM](https://github.com/MonitorControl/MonitorControl/assets/152590955/b7d2aec3-481f-442f-b320-491c765b6010) Above screenshot shows, I clicked to lower the brightness, the percent agrees with what I am seeing, however the slider is still well over 50% ### Environment Information (please complete the following information) ```markdown - macOS version: - Mac model: - MonitorControl version: - Monitor(s): - Apple Silicon/M1 (yes or no): no ```

gitea-mirror

2026-05-05 06:45:32 -06:00

closed this issue
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gitea-mirror commented

2026-05-05 06:45:36 -06:00

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@waydabber commented on GitHub (Dec 1, 2023):

This is a general macOS 14.2 beta 4 bug. Other sliders are broken system-wide as well (take a look at the volume slider of the Music app for example).

@waydabber commented on GitHub (Dec 1, 2023): This is a general macOS 14.2 beta 4 bug. Other sliders are broken system-wide as well (take a look at the volume slider of the Music app for example).

gitea-mirror commented

2026-05-05 06:45:38 -06:00

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

Fixed with 14.2 RC

@waydabber commented on GitHub (Dec 6, 2023): Fixed with 14.2 RC