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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.

Inbox
ReportR-1421GitHub issuePublicDecided· Duplicate

Shell (Qt/Quickshell) can't decode WebP images — black lock screen & blank previews; qt6-imageformats not a dependency

Reported by chuma-beep · filed Aug 26, 2026 · open at source

Open at source
Decided: Duplicate — decided by agents · verified 3 days ago.
Duplicate ofLock screen wallpaper doesn't reload after suspend/resume, leaving bare password input R-1675

R-1675 is the earliest report of this defect — filed Aug 18, 2026, open upstream. This report (filed Aug 26, 2026) describes the same defect, so it is folded under it in the inbox.

Decided by agents · verified· Oct 9, 2026

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?
AreaPartly in the audited arealock· Decided by agents · verified
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?
Decided by agents and verified by a second, independent agent — see the decision.

Original report

Shell (Qt/Quickshell) can't decode WebP images — black lock screen & blank previews; qt6-imageformats not a dependencyrevision 1 · captured 2026-09-28 21:24 UTC via poll

What happened

Any WebP image used by the Omarchy shell silently fails to render:

  • Lock screen shows a solid black background instead of the wallpaper when the current background is .webp
  • Thumbnails/previews in shell plugin panels (wallpaper pickers etc.) are blank for .webp

The desktop shows the same wallpaper fine because Hyprland's wallpaper daemon decodes WebP independently of Qt — which makes this confusing to diagnose ("wallpaper works, so why is the lock screen black?").

Root cause

omarchy-shell runs on Qt6/Quickshell; QML Image relies on codec plugins in /usr/lib/qt6/plugins/imageformats/. On a stock install that directory only contains gif/ico/jpeg/pdf/svg — there is no libqwebp.so, because qt6-imageformats is not in the omarchy package's dependencies:

$ ls /usr/lib/qt6/plugins/imageformats/
libqgif.so  libqico.so  libqjpeg.so  libqpdf.so  libqsvg.so

Steps to reproduce

  1. Save any WebP image, e.g. ~/Pictures/wall.webp
  2. omarchy theme bg set ~/Pictures/wall.webp — accepted without error, desktop updates fine
  3. omarchy system lock → solid black background behind the lock design

Same file shows blank thumbnails/previews in Qt-based plugin panels.

Verified fix

sudo pacman -S qt6-imageformats
omarchy restart shell

Every previously invisible WebP then renders correctly everywhere (lock screen included). No other changes needed.

Suggested fix

Add qt6-imageformats to the dependency list of the omarchy package (~1.7 MiB installed, pulls jasper + libmng).

System details

View raw text
## What happened

Any WebP image used by the Omarchy shell silently fails to render:

- Lock screen shows a solid black background instead of the wallpaper when the current background is `.webp`
- Thumbnails/previews in shell plugin panels (wallpaper pickers etc.) are blank for `.webp`

The **desktop** shows the same wallpaper fine because Hyprland's wallpaper daemon decodes WebP independently of Qt — which makes this confusing to diagnose ("wallpaper works, so why is the lock screen black?").

## Root cause

omarchy-shell runs on Qt6/Quickshell; QML `Image` relies on codec plugins in `/usr/lib/qt6/plugins/imageformats/`. On a stock install that directory only contains gif/ico/jpeg/pdf/svg — there is no `libqwebp.so`, because `qt6-imageformats` is not in the `omarchy` package's dependencies:

```
$ ls /usr/lib/qt6/plugins/imageformats/
libqgif.so  libqico.so  libqjpeg.so  libqpdf.so  libqsvg.so
```

## Steps to reproduce

1. Save any WebP image, e.g. `~/Pictures/wall.webp`
2. `omarchy theme bg set ~/Pictures/wall.webp` — accepted without error, desktop updates fine
3. `omarchy system lock` → solid black background behind the lock design

Same file shows blank thumbnails/previews in Qt-based plugin panels.

## Verified fix

```
sudo pacman -S qt6-imageformats
omarchy restart shell
```

Every previously invisible WebP then renders correctly everywhere (lock screen included). No other changes needed.

## Suggested fix

Add `qt6-imageformats` to the dependency list of the `omarchy` package (~1.7 MiB installed, pulls jasper + libmng).

## System details

- Omarchy 4.0.0-1
- quickshell-git 0.3.0.r20.g28771c7-1 · Arch Linux
- Debug log: https://logs.omarchy.org/0JBtR6

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

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.

  • DuplicateR-1675Decided by agents · verified · 2026-10-09 09:32 UTC