Audio, edge-tiling, and HDMI-2 wallpaper fallback#20
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kimptoc merged 4 commits intokimptoc:claude/fix-xfce-wallpaper-FK5rhfrom May 2, 2026
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May 1, 2026 23:40
- Audio: services.pipewire (alsa + pulse compat) + rtkit. Removes the "works on some machines" lottery and gives wired headsets (3.5mm/USB headphone+mic) input-and-output support out of the box. Adds xfce4-pulseaudio-plugin (right-click → Add to put on the panel) and pavucontrol for per-app + per-device control. - Window edge-tiling: xfwm4 /general/tile_on_move = true. Drag a window to the left/right edge to fill that half, top edge to maximise — the Windows-style snap behaviour kids already expect. - Wallpaper fallback monitor list: include HDMI-2/HDMI2 (and HDMI-A-1, DP-2, DisplayPort-1/2). At least one CC PC has its only display on HDMI-2 and was being skipped when xrandr --listactivemonitors came up empty during the 30 s retry window. xfdesktop ignores last-image keys for outputs that don't exist, so over-listing is safe.
With wrap_windows=true (xfwm4 default), the cursor wraps to the opposite screen edge before the edge-tile preview can trigger, so drag-to-edge tiling silently does nothing. With a single workspace these wrap modes have no useful purpose anyway.
`aplay -l`, `speaker-test`, `pactl list` etc. are useful in the field and during VM testing — pavucontrol covers the GUI case but a terminal on a kid's PC is faster for triage.
Chrome's modern Linux passkey flow uses BT-LE proximity to a phone acting as the authenticator (the QR-scan-with-phone option). Without hardware.bluetooth, Chrome can't initialise that transport and the QR code option silently doesn't appear. Doesn't enable gnome-keyring (intentionally still off, see services.gnome.gnome-keyring.enable = false above) — that route is about platform authenticators which Chrome on Linux barely supports and which don't make sense on a live CD anyway. blueman-applet adds a GUI tray for pairing.
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Summary
Three small additions to the XFCE live-CD config:
services.pipewire(alsa + pulse compat) +rtkit. Removes the "works on some machines" lottery; wired headsets (3.5mm or USB headphone+mic) get input + output out-of-the-box. Addsxfce.xfce4-pulseaudio-plugin(right-click panel → Add to surface it) andpavucontrolfor per-app/per-device control.xfwm4 /general/tile_on_move = truevia the existing autostartxfconf-queryblock. Drag a window to the left/right edge → fills that half; top edge → maximise. The Windows-style snap kids already expect.xrandr --listactivemonitorsreturns empty within the 30 s retry window) to includeHDMI-2/HDMI2(alsoHDMI-A-1/2,DP-2,DisplayPort-1/2). At least one CC PC has its only display on HDMI-2 and was being skipped. xfdesktop ignoreslast-imagekeys for outputs that don't exist, so over-listing is safe.Test plan
pactl infoshows PipeWire, Chrome plays YouTube audio,pavucontrolshows input + output devices.pavucontrolInput Devices tab shows the mic; speak, level meter moves.\$MYLOG(autostart log) thatwallpaper: monitors = [...]includesHDMI-2either via xrandr detection or the new fallback.🤖 Generated with Claude Code