<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - ALPS SS5 (SS4 v2) trackpoint too fast / jumpy because of readout "hole" in the center" href="https://bugs.freedesktop.org/show_bug.cgi?id=106323#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - ALPS SS5 (SS4 v2) trackpoint too fast / jumpy because of readout "hole" in the center" href="https://bugs.freedesktop.org/show_bug.cgi?id=106323">bug 106323</a> from <a class="email" href="mailto:mwilck@suse.de" title="Martin Wilck <mwilck@suse.de>"> Martin Wilck</a> <pre>(In reply to Peter Hutterer from <a href="show_bug.cgi?id=106323#c2">comment #2</a>) > The trackpoint curve is in src/filter-trackpoint.c:trackpoint_accel_profile, > you can try to put a /8.0 there before returning the factor. Does that > work/help? I don't think that'll work well. Unless I'm mistaken, it's pretty much the same thing as setting the accel factor to -1 or -0.9. It has the effect to make the pointer REALLY slow. IMO, to get the best of both worlds for small and large movements with this stick type, we need to scale down *before* applying the acceleration profile. That would be the same thing as dividing the filter's "scale_factor" by 8, if I read the code correctly. Quoting Masaki Ota from the mail thread: "If we use Touchpad as Absolute mode, Track stick mode is changed to Raw mode from Mouse mode.... But TrackStick Raw mode data is much larger than Mouse mode data. (This is the cause of high speed.)"</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>