Difference between revisions of "Intel Graphics"
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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"]]). | 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) == | ||
| + | |||
| + | 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: | ||
| + | |||
| + | <pre> | ||
| + | $ nix-shell -p pciutils --run "lspci | grep VGA"<br/> | ||
| + | 00:02.0 VGA compatible controller: Intel Corporation Device 46a6 (rev 0c) | ||
| + | </pre> | ||
| + | |||
| + | In this example, "46a6" is the device ID. You can then add this to your configuration and reboot: | ||
| + | |||
| + | <pre>boot.kernelParams = [ "i915.force_probe=46a6" ];</pre> | ||
Revision as of 14:51, 14 October 2022
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)
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 | grep VGA"<br/> 00:02.0 VGA compatible controller: Intel Corporation Device 46a6 (rev 0c)
In this example, "46a6" is the device ID. You can then add this to your configuration and reboot:
boot.kernelParams = [ "i915.force_probe=46a6" ];