Touchpad accel, spirals and xset
pgf at laptop.org
Tue Jan 19 10:39:03 EST 2010
> On Mon, Jan 18, 2010 at 8:47 PM, Paul Fox <pgf at laptop.org> wrote:
> > > According to the man page the 2nd parameter is the threshold at which
> > > the acceleration value is applied so I'm not surprised that you don't
> > > see any difference between 0 and 1. Even 4 might be hard to see. I
> > > think that to see a difference for fine motor this value will have be in
> > > the 5 to 10 range.
> Right -- I did apply Paul's recommendations. The manpage isn't
> necesarily going to know all the interactions between our TP, kernel
> driver and xorg input driver. Experimentation and source review carry
> more weight.
> I assume Paul did both -- he's been looking at this for a while.
> Now, in my experimentation with the values he supplied, it did not
> make any difference.
> > martin isn't seeing a difference, which surprises me, because i
> > definitely saw a difference between 0 and 1. from the wiki page
> Ok. Gentlemen, maybe it's a better idea to grab 2 XOs, setup 802 on
> one, 802B1 on the other, and run a quick test with the stock settings,
> and other settings you think might help.
now that i'm in the office, i can do exactly that today.
> Also, Paul, did you get any response from deployments on whether the
> new kernel + xset values improved noticeably on the jumpyness?
i'm afraid i've gotten not much feedback at all. and what i did
get was nothing much more than "it didn't make it worse". :-/
i also hoped to get feedback from the folks running F11-on-XO1,
since they're all using the new driver as well (and, i think the
new xset values, but i'm not positive of that), but don't recall
using my own XO, i feel that it's better, but i'm way too familiar
with the code, and the exact nature of the touchpad problems, to
be objective. :-/ (my wife agrees with me, but she's hopefully
not completely impartial either. ;-)
paul fox, pgf at laptop.org
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