On Mon, Dec 27, 2010 at 03:04:46PM -0600, Chris Bagwell wrote: > Since xf86-input-synaptics 1.3.0 handles (X,Y) jumps during finger > transitions, if clickpad users set their EmulateTwoFingerMinW to 5 I > suspect they will see a lot less big cursor jumps... but they will > still see small cursor movement click operations. Users could make > use of AreaBottomEdge to shrink size of touchpad to work around the > smaller movement.
I was playing around with this a little. Setting "AreaBottomEdge=3800" did make the mouse jitter on button press go away (at the cost of a smaller touchpad area). (Of course, this would still need to work once left/right/middle button detection is implemented.) I can also confirm that setting EmulateTwoFingerMinW=5 stops cursor jumps when pressing two fingers. With a larger EmulateTwoFingerMinW size, whenever I touch a second finger higher up on the clickpad the cursor jumps. The distance of the jump is proportional to how far away my second finger is to the first finger. The cursor jumps back if I lift the second finger before lifting the first. Interestingly, pressing a second finger lower on the touchpad does not cause jumps. Also interesting - if I set "AreaBottomEdge=3800" and I press the first finger in the button area, and then press a second finger higher up on the touchpad, then I don't get a jump. (Maybe because X ignored the first touch and then didn't get confused on the second?) -Kevin _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
