pointer jumps 4 pixels per mouse movement

pointer jumps 4 pixels per mouse movement

Post by Ronald S. Cho » Thu, 19 Jun 1997 04:00:00

hi all:

i'm using redhad4.1 and xfree3.3.  when i move the mouse, the pointer
moves in multiples of 4 pixels at a time; the pointer movement is not
smooth, but rather jumps to x +/- 4 pixels.  (it does this in they y
direction also.)

for example, when i move a window and look at the little x,y
coordinate widget that x puts up on the screen, the movements are
always in increments/decrements of 4 pixels.  this really sucks when
you're trying to interact with a program that uses a slider widget.

now i can't begin to know where to start to fix this problem.  any
help would be appreciated.  thanks a lot.



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1. mouse pointer movement with XFree86 4.0

The mouse behaves strangly in XFree86 4.0.

Normally, the mouse movement over a certain distance should result in a
certain movement of the pointer over the screen, independently of the speed
the mouse is moved with. The mouse pointer movement distance is the same.

With XFree86 4.0, the mouse pointer moves the farer the faster the mouse is
moved, i.e. a 2 inch slow mouse movement doesn't move the pointer much, but a
2 inch fast movement will suddenly bring the pointer from one side of the
screen to the other.

I checked several mice (PS/2, seriell), all behaving simliarly. Options
"SampleRate" and "Resolution" don't change anything in this "the faster the
farer" behaviour. (Neither server's options -a and -t do.)

With XFree86 I used so far, everything worked fine.


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