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2922dd5d40 Add IdeaPad Conservation Mode plugin (#20 )

* feat: add lux/ideapad-conservation-mode plugin

* fix: address review blockers on ideapad-conservation-mode

- shell-quote pluginDir/USER before splicing into the sudo/runInTerminal
  command (shell injection)
- declare every external command setup-permissions.sh invokes as a
  manifest dependency, and document them in README Requirements
- drop the hardcoded KERNEL=="VPC2004:00" match from the udev rule so it
  matches any ideapad_acpi instance, consistent with the dynamic
  discovery the Luau side already does
- add the promised NixOS declarative setup section to README
- move all user-visible strings out of conservation_mode.luau into
  translations/en.json, accessed via noctalia.tr()
- add the required README Plugin/Usage sections

* Update dependencies in plugin.toml

* Update setup script requirements in README.md

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Co-authored-by: Lemmy <studio@quadbyte.net>

2026-07-16 08:10:11 -04:00

2.1 KiB

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IdeaPad Conservation Mode

IdeaPad Conservation Mode is a Control Center shortcut plugin for Noctalia (v5) that toggles Conservation Mode — capping charging around ~60% to preserve battery health — via the ideapad_acpi kernel driver's conservation_mode sysfs attribute. That driver covers Lenovo IdeaPad and Legion laptops alike, not just Legion.

Writing that attribute needs root by default. The first time you click the tile and the write fails, the plugin opens a terminal and runs a bundled one-time setup script with sudo. It creates a lenovoctl group, adds you to it, and installs a udev rule so future writes are unprivileged. Log out and back in once afterward; every click after that just works, with no further prompts.

Plugin

Field	Value
ID	`lux/ideapad-conservation-mode`
Entries	Shortcut: `conservation-mode`

Requirements

The bundled setup script (scripts/setup-permissions.sh) shells out to sudo, dirname, env, bash, chgrp, chmod, getent, groupadd, usermod, cat, and udevadm. All of these ship by default on essentially every mainstream Linux distribution (coreutils, util-linux, shadow-utils, systemd/udev).

Usage

Add the conservation-mode shortcut under Settings → Control Center shortcuts. Click it to toggle Conservation Mode; the label shows the current state (On / Off / N/A if the sysfs attribute can't be found). The first click may open a terminal for the one-time sudo setup described above.

NixOS

/etc/udev/rules.d is generated from system config on NixOS, so the setup script exits instead of writing to it. Add the equivalent declaratively instead:

{
  users.groups.lenovoctl = {};
  users.users.<your-username>.extraGroups = [ "lenovoctl" ];

  services.udev.extraRules = ''
    ACTION=="add|change", SUBSYSTEM=="platform", DRIVER=="ideapad_acpi", RUN+="${pkgs.coreutils}/bin/chgrp lenovoctl /sys%p/conservation_mode", RUN+="${pkgs.coreutils}/bin/chmod 664 /sys%p/conservation_mode"
  '';
}

Rebuild, log out and back in, then click the tile.

2.1 KiB Raw Blame History