pointer (touchpad) aceleration and threshold too low in 11.3.* builds

Paul Fox pgf at laptop.org
Wed May 16 21:00:27 EDT 2012

eduardo h. silva wrote:
 > xset q tells that in 11.3.1, the pointer is configured with the values:
 > acceleration 7/4 threshold: 1
 > This takes 2, 3 and sometimes 4 swipes to move across the screen. It's
 > quite a difference with a typical touchpad on bigger laptops, and
 > although the experience can't be duplicated because we can't expect
 > kids to be already highly trained with a touchpad, I think it could be
 > improved.
 > I think the balance is to have a larger threshold, so that slow
 > movements are allways acurate, and a higher acceleration, so that
 > movements across the screen are sufficiently fast (very important in
 > Sugar to access the frame for example). Managing to drop down the
 > amount of swipes needed to move across the screen (like 2 swipes)
 > would be excellent and more in par with the older pre 11.3.* behavior.

so you think it was better, previously?

i wonder what has changed.  those xset values were chosen specifically
to be appropriate for the original ALPS touchpad on XO-1.  it's
entirely possible, now that we're two laptops and at least as many
touchpads beyond that, those numbers are incorrect.

 paul fox, pgf at laptop.org

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