Intel Graphics: Difference between revisions

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== Driver ==

Refer to the [https://nixos.org/manual/nixos/stable/#sec-x11--graphics-cards-intel Intel Graphics drivers] section of the NixOS manual.

== 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"]]).

To enable hardware (GPU) accelerated video decoding and encoding you need to add additional entries in <code>hardware.graphics.extraPackages</code> (see [[Accelerated_Video_Playback|accelerated video playback]]).

== Quick Sync Video ==

Intel Quick Sync Video (QSV) is a hardware accelerated media conversion framework for Intel GPUs.

Applications that can be accelerated using QSV include OBS Studio and ffmpeg.

QSV support can be used through either [https://github.com/Intel-Media-SDK/MediaSDK Intel Media SDK] or [https://github.com/intel/libvpl Intel VPL]. Intel VPL supersedes the now deprecated Media SDK.

Both libraries dispatch to a backing implementation that is different depending on the GPU generation at runtime. You need to add either <code>intel-media-sdk</code> or <code>vpl-gpu-rt</code> (previously <code>onevpl-intel-gpu</code>) to <code>hardware.graphics.extraPackages</code>. You can check the [https://github.com/intel/libvpl?tab=readme-ov-file#dispatcher-behavior-when-targeting-intel-gpus this] table to decide whether you need the Media SDK or VPL GPU runtime.

Sample configuration:

hardware.graphics = {

enable = true;

extraPackages = with pkgs; [

... # your Open GL, Vulkan and VAAPI drivers

vpl-gpu-rt # or intel-media-sdk for QSV

];

};

</syntaxHighlight>

== 12th Gen (Alder Lake) ==

X Server may fail to start with the newer 12th generation, Alder Lake, iRISxe integrated graphics chips. If this is the case, you can give the kernel a hint as to what driver to use. First confirm the graphic chip's device ID by running in a terminal:

The X Server may fail to start with the newer 12th generation, Alder Lake, iRISxe integrated graphics chips. If this is the case, you can give the kernel a hint as to what driver to use. First confirm the graphic chip's device ID by running in a terminal:

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<pre>boot.kernelParams = [ "i915.force_probe=<device ID>" ];</pre>

[[Category:~~Hardware~~]]

[[Category:Video]]

@@ Line 1: / Line 1: @@
+== Driver ==
+Refer to the [https://nixos.org/manual/nixos/stable/#sec-x11--graphics-cards-intel Intel Graphics drivers] section of the NixOS manual.
 == 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"]]).
+To enable hardware (GPU) accelerated video decoding and encoding you need to add additional entries in <code>hardware.graphics.extraPackages</code> (see [[Accelerated_Video_Playback|accelerated video playback]]).
+== Quick Sync Video ==
+Intel Quick Sync Video (QSV) is a hardware accelerated media conversion framework for Intel GPUs.
+Applications that can be accelerated using QSV include OBS Studio and ffmpeg.
+QSV support can be used through either [https://github.com/Intel-Media-SDK/MediaSDK Intel Media SDK] or [https://github.com/intel/libvpl Intel VPL]. Intel VPL supersedes the now deprecated Media SDK.
+Both libraries dispatch to a backing implementation that is different depending on the GPU generation at runtime. You need to add either <code>intel-media-sdk</code> or <code>vpl-gpu-rt</code> (previously <code>onevpl-intel-gpu</code>) to <code>hardware.graphics.extraPackages</code>. You can check the [https://github.com/intel/libvpl?tab=readme-ov-file#dispatcher-behavior-when-targeting-intel-gpus this] table to decide whether you need the Media SDK or VPL GPU runtime.
+Sample configuration:
+<syntaxHighlight lang=nix>
+  hardware.graphics = {
+    enable = true;
+    extraPackages = with pkgs; [
+      ... # your Open GL, Vulkan and VAAPI drivers
+      vpl-gpu-rt # or intel-media-sdk for QSV
+    ];
+  };
+</syntaxHighlight>
 == 12th Gen (Alder Lake) ==
-X Server may fail to start with the newer 12th generation, Alder Lake, iRISxe integrated graphics chips. If this is the case, you can give the kernel a hint as to what driver to use. First confirm the graphic chip's device ID by running in a terminal:
+The X Server may fail to start with the newer 12th generation, Alder Lake, iRISxe integrated graphics chips. If this is the case, you can give the kernel a hint as to what driver to use. First confirm the graphic chip's device ID by running in a terminal:
 <syntaxHighlight lang=console>
@@ Line 16: / Line 39: @@
 <pre>boot.kernelParams = [ "i915.force_probe=<device ID>" ];</pre>
-[[Category:Hardware]]
+[[Category:Video]]