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[GH-ISSUE #1919] MonitorControl crashes with EXC_BREAKPOINT (SIGTRAP) #1316

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opened 2026-10-02 22:07:25 -06:00 by gitea-mirror · 1 comment

gitea-mirror commented

2026-10-02 22:07:25 -06:00

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Originally created by @igRo on GitHub (Sep 26, 2026).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1919

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

MonitorControl sometimes crashes when invoked.

Steps to reproduce

Lid closed, system asleep
Connect external display
Wake up system, log in
Click on the MonitorControl icon in the menu bar

Expected behavior

Actual values (brightness, volume) are read from the external monitor, app menu displayed.

Anything else?

Crash reports:
MonitorControl-2026-09-26-225142.ips.log
MonitorControl-2026-09-25-181040.ips.log

Current settings:

Environment Information (please complete the following information)

- macOS version: 27.0
- Mac model: MBP 14", Nov 2024
- MonitorControl version: 4.4.0 (7152)
- Monitor(s): Dell S3425DW
- Apple Silicon/M1 (yes or no): yes

Originally created by @igRo on GitHub (Sep 26, 2026). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/1919 ### 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 MonitorControl sometimes crashes when invoked. ### Steps to reproduce 1. Lid closed, system asleep 2. Connect external display 3. Wake up system, log in 4. Click on the MonitorControl icon in the menu bar ### Expected behavior Actual values (brightness, volume) are read from the external monitor, app menu displayed. ### Anything else? Crash reports: [MonitorControl-2026-09-26-225142.ips.log](https://github.com/user-attachments/files/32689501/MonitorControl-2026-09-26-225142.ips.log) [MonitorControl-2026-09-25-181040.ips.log](https://github.com/user-attachments/files/32689500/MonitorControl-2026-09-25-181040.ips.log) Current settings: <img width="730" height="538" alt="Image" src="https://github.com/user-attachments/assets/2792a85b-c16a-42dc-a9f9-be38b7d3cb3c" /> <img width="730" height="645" alt="Image" src="https://github.com/user-attachments/assets/bfd8f350-a72e-485e-b67b-a76f0b06a568" /> ### Environment Information (please complete the following information) ```markdown - macOS version: 27.0 - Mac model: MBP 14", Nov 2024 - MonitorControl version: 4.4.0 (7152) - Monitor(s): Dell S3425DW - Apple Silicon/M1 (yes or no): yes ```

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2026-10-02 22:07:25 -06:00

gitea-mirror commented

2026-10-04 22:01:06 -06:00

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@anatolebeuzon commented on GitHub (Oct 4, 2026):

Also experiencing a EXC_BREAKPOINT (SIGTRAP) with a slightly different setup:

- macOS version: 26.7.1 (25G241)
- Mac model: MBA 15", 2024
- MonitorControl version: 4.4.0 (7152)
- Monitor(s): Dell U2723QE
- Apple Silicon/M1 (yes or no): yes, M3

In my case the crash happened on its own, without a menu click, 13 seconds after the displays woke (after sleep). Crash report attached

MonitorControl-crash-2026-10-03.ips.txt

@anatolebeuzon commented on GitHub (Oct 4, 2026): Also experiencing a `EXC_BREAKPOINT (SIGTRAP)` with a slightly different setup: ``` - macOS version: 26.7.1 (25G241) - Mac model: MBA 15", 2024 - MonitorControl version: 4.4.0 (7152) - Monitor(s): Dell U2723QE - Apple Silicon/M1 (yes or no): yes, M3 ``` In my case the crash happened on its own, without a menu click, 13 seconds after the displays woke (after sleep). Crash report attached [MonitorControl-crash-2026-10-03.ips.txt](https://github.com/user-attachments/files/33028960/MonitorControl-crash-2026-10-03.ips.txt)

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github-starred/MonitorControl#1316

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