Intel Graphics: Difference between revisions
imported>Primeos m Iris is the default on nixos-unstable (since Mesa 20.0) |
imported>Primeos Move the VA-API note into a dedicated section |
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== Video acceleration == | |||
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 == | == Iris == | ||
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(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>.) | (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>.) | ||
Revision as of 09:44, 6 August 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").
Iris
On nixos-unstable the new Gallium iris driver is enabled by default. For nixos-20.03 you can use the following in your system configuration:
config = {
environment.variables = {
MESA_LOADER_DRIVER_OVERRIDE = "iris";
};
hardware.opengl.package = (pkgs.mesa.override {
galliumDrivers = [ "nouveau" "virgl" "swrast" "iris" ];
}).drivers;
};
(See this GitHub thread for context and explanation. nouveau 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 swrast and/or virgl, it complains about needing softpipe/llvmpipe to build the nine state tracker.)