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feat: swayosd on-screen display for volume/brightness/mute

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The media keys called wpctl/brightnessctl directly with no visual
feedback — changing volume showed nothing on screen. Now they drive
swayosd-client, which performs the action AND shows a themed OSD.

- modules/home/osd.nix: services.swayosd, style.css generated from the
  palette (base bg, accent progress/border); nomarchy.osd.enable.
- hyprland media binds → swayosd-client (--output-volume raise/lower/
  mute-toggle, --input-volume mute-toggle, --brightness raise/lower).
- modules/nixos: services.udev.packages = [ swayosd ] installs the
  backlight rule (chgrp video + g+w) so brightness works for video-group
  users without root (the installer/live user is in video).

swaync is unaffected (it was already running — this was purely the
missing OSD). Verified: flake check green, swayosd.service bound to
graphical-session.target, hyprland config verifies, swayosd in the live
ISO closure. On-screen rendering needs a real session to confirm.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Bernardo Magri
2026-06-13 16:04:55 +01:00
parent 084b2a0500
commit 520c878bb3
6 changed files with 76 additions and 11 deletions
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18
modules/home/hyprland.nix
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@@ -161,19 +161,19 @@ in
", Print, exec, grim -g \"$(slurp)\" - | wl-copy"
] ++ workspaceBinds;
# Media keys: wpctl talks to wireplumber directly (no
# pipewire-pulse shim like pamixer); e = repeat, l = also on a
# locked screen — the standard flags for hardware keys.
# Media keys via swayosd-client: it performs the action AND shows
# the on-screen display (the nomarchy.osd module). e = repeat,
# l = also on a locked screen — the standard flags for hardware keys.
bindel = [
", XF86AudioRaiseVolume, exec, wpctl set-volume -l 1.5 @DEFAULT_AUDIO_SINK@ 5%+"
", XF86AudioLowerVolume, exec, wpctl set-volume @DEFAULT_AUDIO_SINK@ 5%-"
", XF86MonBrightnessUp, exec, brightnessctl set +5%"
", XF86MonBrightnessDown, exec, brightnessctl set 5%-"
", XF86AudioRaiseVolume, exec, swayosd-client --output-volume raise"
", XF86AudioLowerVolume, exec, swayosd-client --output-volume lower"
", XF86MonBrightnessUp, exec, swayosd-client --brightness raise"
", XF86MonBrightnessDown, exec, swayosd-client --brightness lower"
];
bindl = [
", XF86AudioMute, exec, wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle"
", XF86AudioMicMute, exec, wpctl set-mute @DEFAULT_AUDIO_SOURCE@ toggle"
", XF86AudioMute, exec, swayosd-client --output-volume mute-toggle"
", XF86AudioMicMute, exec, swayosd-client --input-volume mute-toggle"
", XF86AudioPlay, exec, playerctl play-pause"
", XF86AudioPause, exec, playerctl play-pause"
", XF86AudioNext, exec, playerctl next"