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desktop: force micmute LED off, detach audio-micmute trigger

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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
Sergei Poljanski 2026-10-03 21:35:53 +04:00
commit 9e96418d3d
Signed by: asxpi
GPG key ID: 4F8851660FA4121B
1 changed files with 11 additions and 0 deletions
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11
modules/desktop.nix
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@ -54,4 +54,15 @@
# Enable touchpad support (enabled default in most desktopManager).
# services.xserver.libinput.enable = true;
# P14s G6 AMD: the F4 mic-mute LED (platform::micmute) is driven by the
# kernel's `audio-micmute` trigger, which follows the HD-audio codec's
# hardware capture-mute. PipeWire mutes in software at the node level and
# never touches that codec mute, so the trigger reports "muted" (LED lit)
# permanently while the mic actually works. Detach the trigger and force
# the LED off at boot. Verified: writing brightness=0 clears it, so the EC
# is fine — this is purely a trigger/software-mute mismatch.
services.udev.extraRules = ''
ACTION=="add", SUBSYSTEM=="leds", KERNEL=="platform::micmute", ATTR{trigger}="none", ATTR{brightness}="0"
'';
}