LACT

What LACT is

LACT, or Linux GPU Configuration And Monitoring Tool, lets Linux users monitor and configure AMD, Nvidia, and Intel GPUs. It reports hardware details such as VBIOS, VRAM, hardware units, Resizable BAR status, and Vulkan features. Monitoring includes configurable historical charts for power, thermals, and frequency, plus throttling information and CSV export. Available controls include power caps, GPU and VRAM clocks, AMD power states, and custom fan curves on AMD and Nvidia. Undervolting uses voltage offsets on AMD and VF curves on Nvidia. Profiles can activate when specified processes run or gamemode status changes. 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. The TCP listener 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. Available controls vary by GPU generation, driver, and hardware. LACT is free and MIT-licensed.

Who it suits

LACT suits Linux users who want GPU monitoring and configuration across AMD, Nvidia, or Intel hardware. Its system service and headless mode also suit users who want configuration to run independently of a graphical session.

Limits

Available controls depend on GPU generation, driver, and hardware. The TCP listener is disabled by default; remote TCP management has no authentication or encryption. API configuration changes require confirmation or are reverted after a short period, five seconds by default.

Getting started

1. Open the LACT project website.
2. Choose an installation option for your Linux distribution, or use Flatpak.
3. For a service-only installation, the project also lists Docker.
4. Run the GPU configuration service; it can operate without a graphical session or headless from a config file.
5. Use the available interface or JSON API through a Unix socket; TCP is disabled by default.

Verdict

LACT offers monitoring, tuning controls, profiles, and service-based configuration for Linux GPUs from three vendors. Check hardware-specific control availability, and use remote TCP management only with the stated security limitations in mind.