retitle 272280 xserver-xfree86: [mouse] change acceleration default to smooth acceleration thanks
On Wed, Oct 13, 2004 at 01:51:53AM -0500, Branden Robinson wrote: > tag 272280 + upstream moreinfo It's not an upstream issue; they've already fixed the issue, although they haven't documented it. > > http://marc.theaimsgroup.com/?l=xfree-xpert&m=101624642005523&w=2 > > I don't get many bug reports about mouse acceleration -- in fact, yours is > the first I can recall -- so I suspect that you are in a minority in > feeling that the default mouse acceleration parameters "suck". OK, that was too strong, my apologies. If you use the standard X acceleration, for instance the parameters you recommend: > Pointer Control: > acceleration: 20/10 threshold: 4 the distance the on-screen cursor moves, as a function of the distance your mouse moves in a time interval, is not continuous. This is easily observed by moving the mouse smoothly close to the threshold value. The cursor will move in fits and starts, depending whether you moved more or less than the threshold in a particular interval. This broken behaviour is documented in the X standards; it hurts control in a number of applications. (When above the threshold, the distance moved is multiplied by the acceleration; since this applies to the total distance, not just the amount above the threshold, discontinuous motion results.) There are much better solutions to getting smooth cursor acceleration, one of which was apparently implemented in XFree86 several years ago. The post on xfree86-xpert that I gave the link to above is the only place I've been able to find documentation of this feature, although it's easy to verify that it works as advertised. Peace, Dylan
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