Intel Graphics: Difference between revisions

Revision as of 12:45, 4 September 2020

Video acceleration

To enable hardware (GPU) accelerated video decoding and encoding you need to add additional entries in hardware.opengl.extraPackages (see "accelerated video playback").

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 To enable hardware (GPU) accelerated video decoding and encoding you need to add additional entries in <code>hardware.opengl.extraPackages</code> (see [[Accelerated_Video_Playback|"accelerated video playback"]]).
-== Iris ==
-On <code>nixos-unstable</code> the new Gallium <code>iris</code> driver is enabled by default. For <code>nixos-20.03</code> you can use the following in your system configuration:
-<syntaxHighlight lang=nix>
-  config = {
-    environment.variables = {
-      MESA_LOADER_DRIVER_OVERRIDE = "iris";
-    };
-    hardware.opengl.package = (pkgs.mesa.override {
-      galliumDrivers = [ "nouveau" "virgl" "swrast" "iris" ];
-    }).drivers;
-  };
-</syntaxHighlight>
-(See [https://github.com/NixOS/nixpkgs/pull/65017 this GitHub thread] for context and explanation. <code>nouveau</code> is included to trigger the gallium-xa build, which is currently required because the nix derivation expects to copy the gallium-xa pkg-config files into place. Without <code>swrast</code> and/or <code>virgl</code>, it complains about needing softpipe/llvmpipe to build the <code>nine state tracker</code>.)