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# Framework Laptop 13 (AMD Ryzen AI 300 Series): the ACP PDM digital-mic driver
# returns saturated full-scale garbage, a known and still-open kernel bug on
# Strix Point and Krackan Point. Framework community threads:
# https://community.frame.work/t/81866 (Krackan Point, SOF/ACP timeline)
# https://community.frame.work/t/75748 (Ryzen AI 340, Fedora 42)
# With UCM on, PipeWire exposes only that broken DMIC as the internal mic. Turning
# UCM off makes the ALC285 codec fall back to its analog-stereo profile, whose
# Internal Microphone pin works. Remove this file and restart wireplumber to revert.
monitor.alsa.properties = {
alsa.use-ucm = false
}
# The standalone ACP PDM card (the broken digital mic) still appears without UCM;
# disable it so no app or default-selection can pick it. The ~ prefix makes the
# match a regex over the card name rather than one PCI path (pci-0000_c1_00.5 on
# velox), so the same board with a renumbered bus is still caught.
monitor.alsa.rules = [
{
matches = [ { device.name = "~alsa_card.pci-.*-platform-acp-pdm-mach" } ]
actions = { update-props = { device.disabled = true } }
}
]
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