Linux fixes for the ThinkPad X14 Gen 1 (21XM, ALC257): internal speaker EC unmute, measured EQ profiles, RNNoise mic chain, and a hardware report for the missing 17aa:513d kernel quirk.
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Updated
Aug 20, 2026 - Shell
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alc257
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Sound Open Firmware (SOF) DMIC microphone driver for macOS — in-kernel cAVS DSP bring-up as a native IOAudio input. Comet Lake/ALC257 verified; generalizes to other cAVS laptops. Hackintosh, OpenCore, kext, MIT.
macos intel microphone hackintosh kext realtek kernel-extension sof applehda cavs opencore audio-driver dmic comet-lake sound-open-firmware alc257 ioaudio hda-dsp
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Updated
Oct 2, 2026 - C++
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