![]() # cat /sys/kernel/debug/dri/0/gt/uc/huc_info # cat /sys/kernel/debug/dri/0/gt/uc/guc_info i915 0000:00:02.0: Incompatible option enable_guc=2 - HuC is not supported! # dmesg i915 0000:00:02.0: Incompatible option enable_guc=2 - GuC is not supported! If they are not supported by your graphics adapter you will see: Regenerate the initramfs, on next boot you can verify both GuC and HuC are enabled by using dmesg: etc/modprobe.d/nf options i915 enable_guc=2 Set the i915.enable_guc kernel parameter, for example with: ![]() Moreover, enabling GuC/HuC firmware loading can cause issues on some systems disable it if you experience freezing (for example, after resuming from hibernation).įirst, ensure that linux-firmware is installed. Warning: Manually enabling GuC / HuC firmware loading taints the kernel even when the feature is not supported. If GuC submission or HuC firmware loading is not enabled by default for your GPU, you can manually enable it. GuC functionality is controlled by the i915.enable_guc kernel parameter. The GuC and HuC firmware files are both provided by linux-firmware. CBR rate control on SKL low-power encoding mode) require loading the HuC firmware as well. With regards to HuC support, some video features (e.g. To use this functionality, the GuC firmware must be loaded. Introduced with Alder Lake-P (Mobile), within Gen12.
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