Running hashcat fails with: clGetPlatformIDs(): CL_PLATFORM_NOT_FOUND_KHR

nixlearner · March 28, 2020, 12:51am

I just installed hashcat from nixpkgs but when i try to run it it fails with :

hashcat (5.1.0) starting...

clGetPlatformIDs(): CL_PLATFORM_NOT_FOUND_KHR

Started: Sat Mar 28 01:35:20 2020
Stopped: Sat Mar 28 01:35:20 2020

I checked :

github.com

NixOS/nixpkgs/blob/ae6bdcc53584aaf20211ce1814bea97ece08a248/pkgs/tools/security/hashcat/default.nix

{ stdenv, fetchurl, makeWrapper, opencl-headers, ocl-icd, xxHash }:

stdenv.mkDerivation rec {
  pname   = "hashcat";
  version = "5.1.0";

  src = fetchurl {
    url = "https://hashcat.net/files/hashcat-${version}.tar.gz";
    sha256 = "0f73y4cg8c7a6q7x34qvpfi4g3lw6j9bnn0a13g43aqyiskflfr8";
  };

  nativeBuildInputs = [ makeWrapper ];
  buildInputs = [ opencl-headers xxHash ];

  makeFlags = [
    "PREFIX=${placeholder "out"}"
    "COMPTIME=1337"
    "VERSION_TAG=${version}"
    "USE_SYSTEM_OPENCL=1"
    "USE_SYSTEM_XXHASH=1"

This file has been truncated. show original

there it would include opencl-headers and ocl-icd .

I checked online some results suggest installing the opencl runtime, though i can’t find anything on nixpkgs. Am i missing something ?

Does anyone have an Idea how to fix this issue ? Is there something i should add in hardware-configuration.nix to solve this issue ? Maybe some drivers ?

Hardware:

My system has a AMD Ryzen 1700 CPU with an NVIDA GTX 1070Ti Graphics card.

jonringer · March 28, 2020, 2:14am

this is likely a driver issue, did you install the nvidia drivers?

nixlearner · March 28, 2020, 10:48am

Thank you that was it.

I added : services.xserver.videoDrivers = ["nvidia" ]; to /etc/nixos/configuration.nix and rebooted my machine now it’s working