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 == | == 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| | 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]]). | ||
== 12th Gen (Alder Lake) == | == 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> | <syntaxHighlight lang=console> | ||
Revision as of 08:43, 26 April 2024
Driver
Refer to the 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 hardware.opengl.extraPackages (see accelerated video playback).
12th Gen (Alder Lake)
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:
$ nix-shell -p pciutils --run "lspci -nn | grep VGA"
00:02.0 VGA compatible controller [0300]: Intel Corporation Alder Lake-UP3 GT2 [Iris Xe Graphics] [8086:46a8] (rev 0c)
In this example, "46a8" is the device ID. You can then add this to your configuration and reboot:
boot.kernelParams = [ "i915.force_probe=<device ID>" ];