lapctl

lapctl is a powerful, dependency-free command-line utility written in Rust. It is designed to provide seamless hardware management for Linux laptops.

By interfacing directly with the Linux kernel and ACPI endpoints, lapctl provides a unified interface for controlling hybrid GPU modes, battery charging thresholds, and thermal/power profiles—all from the terminal.

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Key Features

• Hybrid GPU Management: Switch effortlessly between Integrated, Nvidia, and Hybrid graphics modes (Optimus).
• Battery Health: Enforce battery charging thresholds (e.g., 80%) to maximize chemical lifespan.
• Power Profiling: Dynamically adjust ACPI Platform Profiles, CPU scaling governors, and TDP (Wattage) limits.
• Thermal Controls: Direct hardware hooks for proprietary cooling solutions (e.g., Lenovo Ideapad, ASUS).
• Hardware Polling: Comprehensive hardware status checking without heavy daemon dependencies.

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Example CLI

# GPU Modes
lapctl gpu integrated
lapctl gpu hybrid
lapctl gpu nvidia

# Battery Controls
lapctl battery limit 80
lapctl battery status

# Power Profiles
lapctl power performance
lapctl power balanced
lapctl power battery-save

# Raw Wattage Capping
lapctl power limit-tdp 35

# Cooling/Thermal Overrides (Lenovo/ASUS)
lapctl cooling performance
lapctl cooling balanced
lapctl cooling quiet

# Check All Hardware
lapctl status

# --- lapctl status ---
# GPU Mode: hybrid
# BAT1:
#   Capacity: 99%
#   Status: Full
#   Charge Limit: 100%
# Power Profile: balanced
# Cooling Profile: Balanced (Ideapad)
# CPU TDP Limit: Hardware Managed

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Built With

• Rust
• Modern Linux system interfaces

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Project Structure

lapctl
│
├── Cargo.toml
├── README.md
├── LICENSE
├── .gitignore
│
├── src/
│   ├── main.rs
│   ├── cli.rs
│   │
│   ├── commands/
│   │   ├── mod.rs
│   │   ├── gpu.rs
│   │   ├── battery.rs
│   │   ├── power.rs
│   │   ├── cooling.rs
│   │   └── status.rs
│   │
│   ├── hardware/
│   │   ├── mod.rs
│   │   └── gpu.rs
│   │
│   └── utils/
│       └── system.rs

Core Capabilities

• CLI structure and routing architecture
• GPU mode switching and configuration orchestration
• Battery charge limit management (sysfs & Ideapad conservation mode)
• Comprehensive hardware status polling
• Configuration support and state caching
• Thermal/Cooling profiles (Lenovo VPC / ASUS WMI)
• CPU TDP (Wattage) Control (Intel RAPL / AMD hwmon)

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Contributing

Contributions, ideas, and feature suggestions are welcome. More contribution guidelines will be added once the project reaches its first stable milestone.

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Credits

Special thanks to EnvyControl by bayasdev. lapctl drew heavily from EnvyControl's structural logic for seamlessly handling hardware configurations across Linux environments.

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License

This project is licensed under the MIT License.

You are free to use, modify, and distribute this software under the terms of the license. For full details, see the LICENSE file in this repository.

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