On Wed, 2 Feb 2005 11:20:33 +0100, Vojtech Pavlik <[EMAIL PROTECTED]> wrote: > On Tue, Feb 01, 2005 at 11:41:48PM -0800, Pete Zaitcev wrote: > > On 30 Jan 2005 12:10:34 +0100, Peter Osterlund <[EMAIL PROTECTED]> wrote: > > > > > > - Slow motion of finger produces no motion, then a jump. So, it's very > > > > hard to > > > > target smaller UI elements and some web links. > > > > > > I see this too when I don't use the X touchpad driver. With the X > > > driver there is no problem. I think the problem is that mousedev.c in > > > the kernel has to use integer arithmetic, so probably small movements > > > are rounded off to 0. I'll try to come up with a fix for this. > > > > Thanks for the hint. I tried various schemes and mathematical > > transformations > > and found one which gives unquestionably the best result, with smoothest, > > most > > precise and comfortable pointer movement: > > Well, you removed the scaling to the touchpad resolution, which will > cause ALPS touchpad to be significantly slower than Synaptics touchpads.
Yep, Synaptics I think has 4-5x higher resolution. > Similarly, the screen size used to be taken into account, but probably > that was a mistake, since the value is usually left at default and > doesn't correspond to the real screen size. I wonder if we should just add speed factor (along with tap distance) options to mousedev. Vojtech, will you take such patch? I know you want to drop mousedev and have everyone use evdev but, although people started switching, it will not happen until distributions (or XOrg/XFree themselves) have these drivers available straight out of the box. -- Dmitry - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
