LACT
What it is
LACT is an open-source Linux tool for configuring and monitoring AMD, Nvidia, and Intel GPUs. It reports hardware details such as VBIOS, VRAM, hardware units, Resizable BAR status, and Vulkan features. Configurable charts show historical power, thermal, and frequency data; users can also review throttling information and export data as CSV. Available controls include power caps, GPU and VRAM clocks, AMD power states, and custom fan curves for AMD and Nvidia. Undervolting uses voltage offsets on AMD and VF curves on Nvidia. Profiles can activate in response to running processes or gamemode status. A system service handles configuration independently of a graphical session and can run headless from a configuration file. LACT also includes an OpenTelemetry metrics exporter and a JSON API over a Unix socket or TCP. TCP is disabled by default, and remote TCP management has no authentication or encryption. Installation options include packages for several Linux distributions, Flatpak, and a Docker service-only setup. Controls vary with GPU generation, driver, and hardware.
For and against
For
- Supports AMD, Nvidia, and Intel GPUs.
- Exports monitoring data as CSV.
- Offers fan curves, power caps, and clock controls.
- Profiles can respond to processes or gamemode status.
- Includes an OpenTelemetry metrics exporter.
Against
- Controls vary by GPU, driver, and hardware.
- Remote TCP management lacks authentication and encryption.
- TCP listening is disabled by default.
The verdict
LACT combines GPU monitoring, tuning controls, and service-based configuration for Linux systems. Review its hardware-specific controls and remote-management security details before using the API over TCP.
Who it suits
LACT suits Linux users who want to monitor and configure supported GPUs, including through a headless service. The controls available depend on the GPU generation, driver, and hardware.
Plans and prices
LACT
Linux GPU control and monitoring · MIT-licensed
Read 4 Oct 2026 · github.com
On the record
- API
- The daemon exposes a JSON API over a Unix socket or TCP, and the TCP listener is disabled by default for security reasons.github.com · read 4 Oct 2026
- Background service
- GPU configuration runs through a system service that does not depend on a graphical session, and the service can run headless from a config file.github.com · read 4 Oct 2026
- Configuration
- It supports power caps, AMD power states, custom fan curves on AMD and Nvidia, and GPU or VRAM clock configuration.github.com · read 4 Oct 2026
- Configuration safeguard
- API configuration changes require confirmation or are automatically reverted after a short period, five seconds by default.github.com · read 4 Oct 2026
- GPU information
- It reports GPU details such as VBIOS, VRAM, hardware units, Resizable BAR status, and Vulkan features.github.com · read 4 Oct 2026
- Hardware support
- The project documents AMD, Nvidia, and Intel GPU support, with available controls varying by GPU generation, driver, and hardware.github.com · read 4 Oct 2026
- Installation
- The project lists packages or installation options for distributions including Arch, Debian/Ubuntu, Fedora, Gentoo, openSUSE, NixOS, and Solus, plus Flatpak and Docker service-only installation.github.com · read 4 Oct 2026
- Maker
- The repository identifies Ilya Zlobintsev as its owner and describes LACT as a Linux GPU Configuration And Monitoring Tool.github.com · read 4 Oct 2026
- Metrics integration
- LACT includes an OpenTelemetry metrics exporter.github.com · read 4 Oct 2026
- Monitoring
- It provides configurable historical charts for power, thermals, and frequency, throttling information, and CSV export.github.com · read 4 Oct 2026
- Profiles
- Profiles can activate automatically based on running processes or gamemode status.github.com · read 4 Oct 2026
- Purpose
- LACT lets users control AMD, Nvidia, or Intel GPUs on Linux.github.com · read 4 Oct 2026
- Remote management security
- The README says remote TCP management has no authentication or encryption and should be used only on trusted networks or with appropriate firewall rules.github.com · read 4 Oct 2026
- Undervolting
- GPU undervolting is available through voltage offsets on AMD and VF curves on Nvidia.github.com · read 4 Oct 2026
