[GH-ISSUE #1449] Screen goes black when alt + tab a game or when changing brightness #821

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opened 2026-05-05 06:44:54 -06:00 by gitea-mirror · 1 comment

gitea-mirror commented

2026-05-05 06:44:54 -06:00

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Originally created by @ophilbert on GitHub (Oct 13, 2023).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1449

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

Screen goes entirely black randomly when I alt + tab a game or leave a game.
It doesn't happen all the times.

Sometimes it does that when changing the brightness too.

This only happen to my main screen which is an old Apple Cinema Display.

The only way to get it back is either go to Mac OS Settings > Monitors > Organize display and move the screens layouts a bit so the screen lights up again. I found that quitting Monitor Control also did the trick so I believe it could come from here or quitting the app forces a refresh of something.

Steps to reproduce

Unfortunately I don't have any steps to reproduce as sometimes it works perfectly and sometimes the screen goes black.

Expected behavior

The screen should never stay black.

Anything else?

Happy to help pinning down this issue.
Maybe there's something in the logs files but didn't find anything in Application Support.

Environment Information (please complete the following information)

- macOS version: Ventura 13.2.1
- Mac model: Mackbook Pro M1 15"
- MonitorControl version: 4.2.0
- Monitor(s): Macbook M1, Apple Cinema Display 27, Samsung Odyssey G3
- Apple Silicon/M1 (yes or no): yes
- Cinema display is connected to my M1 using 2 adapters. Thunderbolt to usb > usb to usb C

Originally created by @ophilbert on GitHub (Oct 13, 2023). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1449 ### 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 Screen goes entirely black randomly when I alt + tab a game or leave a game. It doesn't happen all the times. Sometimes it does that when changing the brightness too. ![Capture d’écran 2023-10-13 à 11 02 20](https://github.com/MonitorControl/MonitorControl/assets/1815629/d166c479-9056-4cb2-9802-f206253f03f0) This only happen to my main screen which is an old Apple Cinema Display. The only way to get it back is either go to Mac OS Settings > Monitors > Organize display and move the screens layouts a bit so the screen lights up again. I found that quitting Monitor Control also did the trick so I believe it could come from here or quitting the app forces a refresh of something. ### Steps to reproduce Unfortunately I don't have any steps to reproduce as sometimes it works perfectly and sometimes the screen goes black. ### Expected behavior The screen should never stay black. ### Anything else? Happy to help pinning down this issue. Maybe there's something in the logs files but didn't find anything in Application Support. ### Environment Information (please complete the following information) ```markdown - macOS version: Ventura 13.2.1 - Mac model: Mackbook Pro M1 15" - MonitorControl version: 4.2.0 - Monitor(s): Macbook M1, Apple Cinema Display 27, Samsung Odyssey G3 - Apple Silicon/M1 (yes or no): yes - Cinema display is connected to my M1 using 2 adapters. Thunderbolt to usb > usb to usb C ```

gitea-mirror closed this issue

2026-05-05 06:44:55 -06:00

gitea-mirror commented

2026-05-05 06:44:58 -06:00

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@ophilbert commented on GitHub (Oct 30, 2023):

@waydabber is there a log file or something I can look into to help you on this matter ?

@ophilbert commented on GitHub (Oct 30, 2023): @waydabber is there a log file or something I can look into to help you on this matter ?