On Thu, Mar 19, 2015 at 01:06:49PM -0400, Benjamin Tissoires wrote:

To solve your problem, your desktop environment must have a "disable
touchpad" switch in the configuration panel. At least, gnome has. This
way, your settings should come back at each login.
And if this is not sufficient enough, you can always add a xorg.conf.d
snippet which disables the touchpad when X starts.

In the end, I did it that way. Using psmouse.proto=imps also means I
lose the speed/sensitivity settings on the TrackPoint, and the new
defaults are not really usable for me (following the advice in that
thread, I've set them to 105 and 160, now I need to cook an udev rule or
something to set them at boot).

I tried to generate i8042.debug logs for:

- BIOS touchpad disable / psmouse.proto=imps
- BIOS touchpad enable  / psmouse.proto=imps
- BIOS touchpad disable
- BIOS touchpad enable

but the logs for the two last ones are imcomplete, I get:

Mar 20 12:53:21 balvenie systemd-journal[368]: Missed 2672 kernel
messages

so I miss the initialization which I guess is the most useful part.

Regards,
-- 
Yves-Alexis