[Wayland-bugs] [Bug 99777] Lid switch monitoring occasionally gives false positives, erroneously disabling the internal touchpad

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99777

--- Comment #10 from Peter Hutterer <peter.hutterer at who-t.net> ---
>From the log:
input device 'Lid Switch', /dev/input/event0 not tagged as input device
not using input device '/dev/input/event0'.

So whatever you're seeing is not the result of the new lid switch code, at
least not in libinput. For the new lid switch code to work, you'll need a
relatively recent systemd patch to tag switch devices with ID_INPUT_SWITCH.
Without that, libinput will ignore the device. You can easily verify this with
udevadm info /sys/class/input/event0 (for your switch device) and see if that
shows up. If not, the new lid code isn't triggered.

Coincidentally, the evemu-event command above can verify this, send it with
--value 1 to logically close the lid - the touchpad should still work.

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