[GH-ISSUE #667] Minimum software brightness of 0% is too dangerous #457

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opened 2026-05-05 06:03:03 -06:00 by gitea-mirror · 0 comments

gitea-mirror commented

2026-05-05 06:03:03 -06:00

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Originally created by @waydabber on GitHub (Oct 4, 2021).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/667

Originally assigned to: @waydabber on GitHub.

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

v4.0.0-beta1 currently allows for zero software brightness by default in the following circumstancesí:

Gamma software control
Combined gamma&hardware control
Shade software control

This might result in situations when the user turns brightness to zero and then remains confused about the situation. Special problems might occur when a mac previously connected to a physical display is accessed via Screen Sharing headlessly which creates a virtual display with shade software control. If the physical brightness was zero, on some circumstances (like when all display control is enabled) this results in 0% software brightnes resulting in a blank screen. This cannot be addressed via keyboard using the media keys through Screen Sharing which creates an unsolvable situation.

Steps to reproduce

See above

Expected behavior

Software brightness should have a minimum of 15% to avoid full black screen. An expert setting should be added to enable full black in software mode for those who wish to have this functionality.

Anything else?

No response

Environment Information (please complete the following information)

- macOS version: any
- Mac model: any
- MonitorControl version: 4.0.0-beta1
- Monitor(s): any
- Apple Silicon/M1 (yes or no): any

Originally created by @waydabber on GitHub (Oct 4, 2021). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/667 Originally assigned to: @waydabber on GitHub. ### 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 v4.0.0-beta1 currently allows for zero software brightness by default in the following circumstancesí: - Gamma software control - Combined gamma&hardware control - Shade software control This might result in situations when the user turns brightness to zero and then remains confused about the situation. Special problems might occur when a mac previously connected to a physical display is accessed via Screen Sharing headlessly which creates a virtual display with shade software control. If the physical brightness was zero, on some circumstances (like when all display control is enabled) this results in 0% software brightnes resulting in a blank screen. This cannot be addressed via keyboard using the media keys through Screen Sharing which creates an unsolvable situation. ### Steps to reproduce See above ### Expected behavior Software brightness should have a minimum of 15% to avoid full black screen. An expert setting should be added to enable full black in software mode for those who wish to have this functionality. ### Anything else? _No response_ ### Environment Information (please complete the following information) ```markdown - macOS version: any - Mac model: any - MonitorControl version: 4.0.0-beta1 - Monitor(s): any - Apple Silicon/M1 (yes or no): any ```