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macbook: fix native DWT via hwdb touchpad integration override

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Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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rope 2026-07-16 21:18:56 +01:00
parent f1212e72c8
commit 4f99ea2019
1 changed files with 11 additions and 5 deletions
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hosts/FredOS-Macbook.nix
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@ -39,11 +39,17 @@
HandleLidSwitchExternalPower = "suspend";
};
# Disable-while-typing daemon for the bcm5974 touchpad.
# Hyprland's built-in DWT doesn't work because the keyboard and
# touchpad share the same USB device, breaking libinput's pairing.
# A libinput quirk (AttrKeyboardIntegration=internal) was tried but
# caused libinput to permanently inhibit the touchpad.
# systemd's hwdb tags USB touchpads external (no Apple exception
# upstream), so libinput refuses to offer DWT on the bcm5974
# (ID_INPUT_TOUCHPAD_INTEGRATION=external). Force internal so
# libinput's native DWT pairing with the internal keyboard works.
services.udev.extraHwdb = ''
touchpad:usb:v05acp0291:*
ID_INPUT_TOUCHPAD_INTEGRATION=internal
'';
# Fallback DWT daemon for the bcm5974 touchpad.
# TODO: remove once native libinput DWT (hwdb fix above) is verified.
systemd.services.macbook-dwt = {
description = "Disable touchpad while typing (bcm5974)";
after = [ "systemd-udevd.service" ];