CachyOS Apps

Install LACT on CachyOS

AMDGPU Controller application (git version).

From the official CachyOS repo. Install with pacman, no AUR helper needed.

Reviewed Nov 2, 2026 · independent guide

How do I install LACT on CachyOS?

Run this in a terminal, then open LACT from your app menu:

sudo pacman -S lact-git

lact-git is in the cachyos repo, the CachyOS project's own package repository, so pacman installs it directly with no AUR helper and no build script. The package is signed with the CachyOS repository key, and pacman checks the signature before it installs.

What should I do after installing LACT?

  1. Open LACT from your app menu.
  2. Or run lact in a terminal.
  3. The package ships the systemd unit lactd.service. Read the project docs before you enable it.
  4. Run pacman -Qi lact-git to see the installed version and the optional dependencies.

How do I update or remove LACT?

Update:

sudo pacman -Syu

Remove:

sudo pacman -Rns lact-git

What is LACT?

Linux GPU Configuration And Monitoring Tool.

Package description: AMDGPU Controller application (git version)

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    From GitHub

    ilya-zlobintsev/LACT · ★ 5,844 stars · last commit Nov 1, 2026 · latest release Aug 29, 2026

    Real issues opened by users on the project's GitHub, shown as written with a link to each one. 10 most reacted issues opened in the last two years plus the 5 newest issues, bots, pull requests, non English and political posts skipped, capped at 15 per repo. Fetched Nov 1, 2026.

    1. Feature: Per-point V/F curve reading and editing for NVIDIA GPUs via undocumented NvAPIClosed

      I've discovered undocumented NvAPI functions accessible via libnvidia-api.so on Linux that enable full 128-point V/F (voltage-frequency) curve reading and per-point frequency offset control for NVIDIA GPUs — the same mechanism MSI Afterburner uses on Windows. This was previously…

      @Loong0x00 · · 13 reactions · 3 comments · View on GitHub

    2. Drop libadwaita buildsClosed

      Currently the lact-libadwaita packages link against libadwaita and initialize it, but don't actually use any libadwaita widgets. The only practical difference between lact and lact-libadwaita is the default theme. You can achieve the same exact look as lact-libadwaita in the…

      @ilya-zlobintsev · · 6 reactions · 1 comments · View on GitHub

    3. RDNA4 SupportClosed

      This issue keeps track of RDNA4 support. Current status: the feature/rdna4 branch is mostly functional with the current (kernel 6.13) driver interface. However, before merging it is awaiting this patchset to be accepted into the upstream kernel. This patch fixes an issue with the…

      @ilya-zlobintsev · · 6 reactions · 86 comments · View on GitHub

    4. flatpak build not respecting the system theme in UbuntuClosed

      The LACT Flatpak build does not follow the system's light/dark theme setting and always uses the same appearance (Light theme), unlike other Flatpak apps.

      @alexballas · · 5 reactions · 8 comments · View on GitHub

    5. Unable to change VRAM clocks 9070 XTOpen

      Hello, I'm unable to change the maximum VRAM clock speed on a 9070 XT in CachyOS (kernel 6.17, MESA 25.2.4 provided by CachyOS, OpenCL [rusticl, not ROCm]). Any changes I attempt to make to the graphics card's VRAM clock speed are not applied, but sometimes they're applied (don't…

      @pablovesnine · · 5 reactions · 5 comments · View on GitHub

    6. Error os 13Closed

      I am unable to change any settings and have tried configuring the config file and changing admingroup and sudo systemctl enable --now lactd doesn't help either

      @stealthekills · · 3 reactions · 4 comments · View on GitHub

    7. RPM packages not signed (tumbleweed)Closed

      I noticed that the RPM packages available for download in the repository are not signed, even though a public key (lact.pubkey) is provided. Specifically, the following packages tried are affected: lact-0.7.0-0.x8664.opensuse-tumbleweed.rpm…

      @wgomg · · 3 reactions · 2 comments · View on GitHub

    8. Automatic profile switching doesn't correctly detect process start or endClosed

      Was trying out LACT instead of corectrl (it was fully closed) when i came across this bug. When enabling automatic profile switching I noticed that monado-service was not showing up despite it showing up in KDE system monitor. Upon disabling and re-enabling the profile switching…

      @GrandtheUK · · 2 reactions · 4 comments · View on GitHub

    9. BUG: broken daemon socket permissions in 0.7.3 [rpm install]Closed

      After last update the GUI is unable to connect to daemon from user due to broken socket permissions: srw-rw----. 1 root root 0 Apr 5 23:14 /run/lactd.sock From stdout/stderr log: daemon section from /etc/lact/config.yaml: I never changed the config file manually, so it must work,…

      @krokwen · · 2 reactions · 11 comments · View on GitHub

    10. LACT FlatpakClosed

      Hello, good afternoon I'm trying to use the Flatpak version but I'm not succeeding. So, I did the installation, then opened the application and did what is indicated in image 1, then I ran this command "sudo systemctl enable --now lactd" and also set it up as shown in image 2. I…

      @JosephM0on · · 2 reactions · 8 comments · View on GitHub

    11. LACT reports Resizable BAR as disabled although 1 GB BAR is active on AMD RX 5700 XTClosed

      I believe this issue may be related to #306. LACT reports Resizable BAR as disabled on my AMD Radeon RX 5700 XT, although the PCIe Resizable BAR capability is present and a 1 GB BAR is configured and recognized by both the Linux kernel and the AMDGPU driver. My goal is…

      @FasteryXD · · 2 comments · View on GitHub

    12. Fan Curve uses Junction/mem temperature not edge - 9070XT - Maybe Duplicate of #1098Open

      Just seen that this is a possible duplicate of -> maybe reference the information in the notes in hardware support matrix? Just seen it is referenced further down below! Sorry for duplicate just thought I create this either way as a reminder that others might stumble also upon…

      @jahellwig · · 3 comments · View on GitHub

    13. [Feature Request] System Tray icon for quick changing profilesOpen

      it would just be nice to have a system tray icon on KDE and Gnome for quickly changing profiles without the need to bring LACT's main window up. if that can be considered I would appreciate it signed Ozzy

      @OzzyHelix · · 0 comments · View on GitHub

    14. 'Also disable on autostart' is confusing!Open

      'Also disable on autostart' makes me hesitate and have to think every time! Would be much clearer if the label did not switch depending on state - just leave as 'Autostart on boot' - then the intent of the checkbox is clear.

      @dcog989 · · 2 comments · View on GitHub

    15. Allow a single profile to match multiple processes (list of process names)Closed

      Currently each profile supports a single activation rule, and rule.filter.name accepts only one process name: profiles: my-profile: rule: type: process filter: name: some-process If I want the same GPU settings to apply when any of several processes is running, I have to create…

      @alfie0120 · · 2 comments · View on GitHub

    LACT on CachyOS: questions

    Is LACT in the official CachyOS repo?

    Yes. The lact-git package is in the cachyos repo, version r1067.ec0630c8-1, built 2026-03-09. Install it with sudo pacman -S lact-git.

    Do I need an AUR helper for LACT?

    No. It comes from the cachyos repo, so plain pacman installs and updates it, and sudo pacman -Syu keeps it current.

    What is the LACT command?

    lact. The package is called lact-git.