Frank
8da6cdc9cd
flameshot full dies docked: its portal path hits niri's screenshot_all_outputs ensure!(outputs.len()==1) (upstream niri#4313, niri 26.04), so every Print press on the home desk produces error bubbles. niri's built-in screenshot UI selects only one output, so add scripts/screenshot-desk.sh: per-monitor focus + screenshot-screen with explicit --path, focus restored, one PNG per monitor in ~/Pictures/Screenshots. Bind Mod+Shift+S (Frank's call); noctalia settings moves to Mod+Shift+O. Restore screenshot-path (was null, now root-level as config.screenshot_path requires) for UI saves. Live- verified docked: valid 1920x1080 PNGs for eDP-1 + DP-2, focus restored; bats 27/27 incl. niri validate on both desk profiles.
3.8 KiB
3.8 KiB
type, title, description, tags, verified
| type | title | description | tags | verified | |||||
|---|---|---|---|---|---|---|---|---|---|
| reference | Screenshot Matrix | Which screenshot binds work on blankpad as a function of output count — flameshot full is dead on 2+ outputs (niri D-Bus screencopy single-output limit, upstream niri#4313); Mod+Shift+S runs scripts/screenshot-desk.sh, the niri-native all-monitor capture. |
|
2026-10-14 |
Screenshot Matrix
Three capture stacks coexist on blankpad: flameshot (portal → niri D-Bus screenshot API), niri's built-in screenshot UI, and scripts/screenshot-desk.sh (drives niri per-output actions). The flameshot full-screen path breaks the moment the laptop docks to a second output.
Bind matrix by output count
| Bind | Tool | 1 output (portable) | 2+ outputs (docked home) |
|---|---|---|---|
Print / Ctrl+Shift+1 |
flameshot full |
✅ | ❌ error bubbles |
Alt+Print / Ctrl+Shift+2 |
flameshot screen (focused) |
✅ | ✅ single-output request |
Ctrl+Print / Ctrl+Shift+3 |
flameshot gui (region) |
✅ | ✅ (watch scaling on mixed-res, flameshot#4449) |
Mod+Shift+S |
screenshot-desk.sh — one PNG per monitor |
✅ | ✅ the docked full-desk path |
Mod+Shift+S used to open noctalia settings; noctalia settings moved to
Mod+Shift+O.
Why flameshot full dies docked
- Flameshot 14 full-screen capture → xdg-desktop-portal →
xdg-desktop-portal-gnome→ niri's GNOME-Screenshot compatibility D-Bus service. - That service calls
Niri::screenshot_all_outputs(src/niri.rs), which starts withensure!(outputs.len() == 1)(FIXME: multi-scale/crop unsupported). On a 2-output virtual screen the request is refused; flameshot pops an error bubble after the portal round-trip — the "bunch of errors after a delay". - Compositor-side fingerprint (
journalctl --user -u niri):WARN niri::niri: error taking a screenshot: Condition failed: outputs.len() == 1 (2 vs 1) - Upstream: niri#4313 (identical stack: niri 26.04 + Flameshot 14 + portal-gnome; closed as duplicate, unfixed in 26.04/8ed0da4).
Why not niri's built-in screenshot UI
niri 26.04's default screenshot action opens the interactive
screenshot UI, and its selection is single-output by design
("this implementation allows only single-output selections for now",
src/ui/screenshot_ui.rs). One press = one monitor.
The all-monitor path: scripts/screenshot-desk.sh
- Bind:
Mod+Shift+Sin keybindings. - Deploy form: symlink
~/.local/bin/screenshot-desk.sh→~/.omp/scripts/screenshot-desk.sh(same convention asdesk.sh). - Algorithm: for each active output from
niri msg --json outputs,focus-monitor→screenshot-screen --path(absolute, one PNG), then restore the previously focused monitor. All niri-native, no grim, no portal. - Files:
~/Pictures/Screenshots/Screenshot from YYYY-MM-DD HH-MM-SS <connector>.png(dir overridable viaSCREENSHOT_DIR). Also honorsscreenshot-pathin misc.kdl for the UI/screenshot-screen default when no--pathis passed. - Verified 2026-10-14 docked: two valid PNGs (eDP-1, DP-2), focus restored.
Census commands
niri msg outputs # how many outputs live
journalctl --user -u niri --since today | grep -i screenshot # portal-path failures
pgrep -a flameshot # daemon state
See Also
- displays — desk profiles: 1 output portable vs 2 docked
- keybindings — generated cheat sheet (source of the binds)
- noctalia-shell — shell settings moved to Mod+Shift+O