Intel Graphics: Difference between revisions
imported>Kindrobot add troubleshooting for Alder Lake cores |
imported>Tlipinski added -nn parameter to lspci so it displays device ID (textual ID might not show it) |
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<pre> | <pre> | ||
$ nix-shell -p pciutils --run "lspci | grep VGA"<br/> | $ nix-shell -p pciutils --run "lspci -nn | grep VGA"<br/> | ||
00:02.0 VGA compatible controller: Intel Corporation | 00:02.0 VGA compatible controller [0300]: Intel Corporation Alder Lake-UP3 GT2 [Iris Xe Graphics] [8086:46a8] (rev 0c) | ||
</pre> | </pre> | ||
In this example, " | In this example, "46a8" is the device ID. You can then add this to your configuration and reboot: | ||
<pre>boot.kernelParams = [ "i915.force_probe= | <pre>boot.kernelParams = [ "i915.force_probe=46a8" ];</pre> | ||
Revision as of 20:10, 23 December 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 -nn | grep VGA"<br/> 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=46a8" ];