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MonitorControl crashes with EXC_BREAKPOINT (SIGTRAP) #1919
Description
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
Activity
anatolebeuzon commentedon Oct 4, 2026
Also experiencing a
EXC_BREAKPOINT (SIGTRAP)with a slightly different setup: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