AutoASPM

A Python script that automatically activates ASPM for all supported devices on Linux.

It parses the lspci -vv output to determine which ASPM level is supported by a device (e.g. L0s, L0sL1 or L1).

Dependencies

• pciutils
• python3
• which

Usage

NixOS - Run once

sudo nix run github:notthebee/AutoASPM

NixOS - Install permanently

1. Add this repository to your flake.nix:

{
  inputs.autoaspm = {
    url = "github:notthebee/AutoASPM?shallow=true";
    # NOTE: optionally your flake's `nixpkgs`
    # inputs.nixpkgs.follows = "nixpkgs";
  };

  # ...
}

2. Import the AutoASPM Nix module in your nixosConfiguration (assuming access to your flake's inputs as a specialArg):

{ inputs, pkgs, lib, ... }:
{
  imports = [
    inputs.autoaspm.nixosModules.default
  ];

  # ...
}

3. Enable the AutoASPM service in your configuration:

{
  # ...

  services.autoaspm.enable = true;
}

4. ???
5. Profit

Other Linux distributions

1. Clone this repository

2. Run sudo ./pkgs/autoaspm.py

Credits

• Luis R. Rodriguez for writing the original enable_aspm script: https://www.uwsg.indiana.edu/hypermail/linux/kernel/1006.2/02177.html
• z8 for his Python rewrite of the enable_aspm script: https://github.com/0x666690/ASPM