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Omarchy

ProbeLabs65 findings · 95 requirements

A proof layer — requirements, tests and verified fixes — for two of Omarchy's subsystems: the application menu (launcher scripts, QML model, JSONC config, search and selection) and the lock screen (lock scripts, QML, PAM authentication). Scope is deliberately limited to those components of omacom/omarchy; the rest of the distribution is not covered.

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ReportR-4529GitHub issuePublicReceived

[quattro only] omarchy-hw-display on T2 Mac returns the touchbar display instead of internal display

Reported by twilightresonance86 · filed Aug 5, 2026Closed upstream on 2026-08-07 by the merge of PR #6597 (closed by dhh). GitHub close reason: completed.

Open at source
Received and recorded verbatim. Nothing has been checked yet.

At a glance

1 · What is claimed?
Only the report text below — no validator has restated it as checkable claims yet.
2 · What does it affect?
Not yet mapped to any requirement or component.
3 · Is it reproducible?
No validation has been run yet.
4 · What remains unclear?
  • Not validated yet: no claims, no reproducer.
5 · What happens next?
Our staff decide whether the report is valid. Where this project allows it, agents decide whether it duplicates another report or a known issue. No decision has been recorded yet.

Original report

[quattro only] omarchy-hw-display on T2 Mac returns the touchbar display instead of internal displayrevision 1 · captured 2026-10-04 11:56 UTC via poll

System details

MacBook Pro 16-inch 2019 (T2)

What's wrong?

The script invokes:

sudo ls -1 /sys/class/backlight 2>/dev/null | head -n1 
appletb_backlight

But on a T2 machine with the most recent t2bce driver the following backlight are available:

~ ❯ ls /sys/class/backlight 
Permissions Size User Date Modified Name
lrwxrwxrwx     - root  5 Aug 17:04   appletb_backlight -> ../../devices/pci0000:00/0000:00:1b.0/0000:04:00.1/t2bce_core/t2bce_core/t2bce_vhci/usb9/9-7/9-7:1.0/0003:05AC:8102.000D/backlight/appletb_backlight
lrwxrwxrwx     - root  5 Aug 17:04   gmux_backlight -> ../../devices/pnp0/00:00/backlight/gmux_backlight

This will cause the brightness controls (keyboard and via the new brightness bar) to act on the touchbar instead of the internal display brightness

Add gmux_backlight to: 

or

should fix this problem (tested locally)

View raw text
### System details

MacBook Pro 16-inch 2019 (T2)

### What's wrong?

The script invokes:
```
sudo ls -1 /sys/class/backlight 2>/dev/null | head -n1 
appletb_backlight
```

But on a T2 machine with the most recent t2bce driver the following backlight are available:
```
~ ❯ ls /sys/class/backlight 
Permissions Size User Date Modified Name
lrwxrwxrwx     - root  5 Aug 17:04   appletb_backlight -> ../../devices/pci0000:00/0000:00:1b.0/0000:04:00.1/t2bce_core/t2bce_core/t2bce_vhci/usb9/9-7/9-7:1.0/0003:05AC:8102.000D/backlight/appletb_backlight
lrwxrwxrwx     - root  5 Aug 17:04   gmux_backlight -> ../../devices/pnp0/00:00/backlight/gmux_backlight
```

This will cause the brightness controls (keyboard and via the new brightness bar) to act on the touchbar instead of the internal display brightness

Add gmux_backlight to: 
```for candidate in amdgpu_bl* intel_backlight acpi_video* gmux_backlight; ```
or  
```"$(ls -1 /sys/class/backlight 2>/dev/null | head -n1 | grep -v appletb_backlight)"```

should fix this problem (tested locally)

Validation

Not checked yet. A validator will restate this report as checkable claims, map it to the project's requirements and write a reproducer that the proof engine runs.

Linked

Not linked to any known issue, other report or change yet.

Decision

Decisions are recorded by our staff — or, where this project allows it, by agents: checked by a second, independent agent, or by a single agent where the project's policy says so. Any decision reached so far is shown below.

No decision has been recorded yet.