![]() 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. Using the GuC for scheduling, context submission, and power management.Only applicable if using intel-media-driver for hardware video acceleration. Offloading some media decoding functionality from the CPU to the HEVC/H.265 micro (µ) Controller (HuC).Starting with Gen9 (Skylake and onwards), Intel GPUs include a Graphics micro (μ) Controller (GuC) which provides the following functionality : (Discuss in Talk:Intel graphics#TGL/RKL GuC Submission) Reason: Despite Intel's documentation, Tiger Lake and Rocket Lake GPUs may actually support enable_guc=3, and have a default of enable_guc=1. For other setups, see Kernel mode setting#Early KMS start for instructions on how to enable KMS as soon as possible at the boot process. Kernel mode setting (KMS) is supported by Intel chipsets that use the i915 DRM driver and is mandatory and enabled by default.Įarly KMS should already be enabled for typical setups since mkinitcpio v32, as the kms hook is included by default. ![]()
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