Intel Graphics: Difference between revisions
imported>Primeos Remove the Iris section (used by default in the imminent 20.09 release) |
imported>Kindrobot add troubleshooting for Alder Lake cores |
||
| Line 2: | Line 2: | ||
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" ];