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Section "Device" Identifier "Device0" Driver "intel" Option "AccelMethod" "SNA" Option "TearFree" "true" EndSection
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Or by grepping the MODULE_FIRMWARE in kernel source tree: Kernel: HuC: Failed to fetch firmware i915/kbl_huc_ver01_07_1398.bin (error -2) Kernel: GuC: Failed to fetch firmware i915/kbl_guc_ver9_33.bin (error -2) To identify the firmware file name, either by checking /var/log/kern.log: Enabling GuC/HuC firmware loading could cause issues on some systems, disable it if you experience freezing (for example, after resuming from hibernation). HuC firmware (and GuC as a dependent) is needed for AVC/HEVC/VP9 low power encoding bitrate control, including CBR, VBR, etc. Including the firmware in-kernel may cause suspend-to-ram to fail, if this is a concern don't include the blob built into the kernel, instead, add the firmware blob into the initramfs.įor Gen11+ GPUs, GuC/HuC firmware are loaded by default since Linux 5.4 (see commit).įor Gen9 and Gen9.5 GPUs, GuC/HuC firmware won't be loaded by default, it is possible to enable loading of the firmware using kernel parameter i915.enable_guc_loading=1 (prior to kernel 4.16) or i915.enable_guc=3 (since kernel 4.16). Feature support Generationĩ15G/GM, 945G/GM, G/Q33, Q35, Atom D4xx/D5xx/N4xx/N5xx E.g., “3rd Gen” in the example lspci output above corresponds to “Gen7” in the table below.
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The lspci output for the graphics controller may refer to CPU generations, whereas the Feature support table below refers to GPU generations.