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Diffstat (limited to 'configs/wireplumber/50-disable-ucm.conf')
| -rw-r--r-- | configs/wireplumber/50-disable-ucm.conf | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/configs/wireplumber/50-disable-ucm.conf b/configs/wireplumber/50-disable-ucm.conf new file mode 100644 index 0000000..99cf8cb --- /dev/null +++ b/configs/wireplumber/50-disable-ucm.conf @@ -0,0 +1,22 @@ +# 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 } } + } +] |