[Bug 249987] Lenovo X120e touchpad failing

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249987

--- Comment #8 from Vladimir Kondratyev <wulf at freebsd.org> ---
(In reply to Jason W. Bacon from comment #7)
> why would behavior differ between 12.1-RELEASE and 12.2-RC2?
12.1-RELEASE still has kern.evdev.rcpt_mask=3 by default as it predates
xorg-server 1.20 (wrongly mentioned by me as 1.21) import to ports tree.
Really, X.Org version does not matter. Evdev-awared xorg autoconfiguration
backend was added to server at the same moment, that changed its behavior. Old
value of kern.evdev.rcpt_mask sysctl in 12.1-RELEASE just hided that for some
time with forcing libinput to get touchpad events through mouse emulation
support in psm(4) driver.

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