How can I disable my Lenovo laptop's touchpad?

[Polytropon]

On Sun, 14 Jan 2018 20:26:50 +0100, Ralf Mardorf via freebsd-questions wrote:
> Dunno if it's helpful:
> https://ben-rowan.github.io/post/disable_lenovo_trackpad/

This particular suggestion doesn't disable the trackpad, it
just sets is threshold to a value where the pressure on the
surface should not cause any device action.

In /etc/sysctl, conf, the setting

	hw.psm.synaptics.min_pressure=220

should cause that effect and seems to require enabling the
Synaptics functionality beforehand:

	hw.psm.synaptics_support="1"

I have no idea why one has quotes, the other hasn't.

Additionally, it would be interesting if this causes a
difference in console usage vs. X usage.

I have the same problem with a Lenovo Thinkpad R61i, but as
the console mode is "functionally dead", the problem persists
within X. Accidentally touching the trackpad causes the mouse
cursor to move whereas the only moving activity should be
initiated by using the TrackPoint ("red nub"). Both devices
seem to be combined into /dev/psm0... :-(




-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...