Re: [Qemu-devel] [PATCH] [RFC] usb-wacom

[François Revol]

> François Revol wrote:
> > > > First, mouse stayed in the top-left corner... Seems coords were
> > > > set
> > > > to
> > > > 0,0 when no button is pressed, which is wrong, most tablets
> > > > actually
> > > > sense the stylus even when it's not yet touching the surface.
> > >
> > > I see similar problems with Windows Server 2003 guest and the USB
> > > tablet emulation.  The pointer jumps about randomly, so it's not
> > > usable.  It works fine with Windows XP guest.
> >
> > XP likely disregards mouse up packets and caches the last position.
>
> Would caching the last position cause the mouse to jump all over the
> screen from frame to frame (no intermediate motion) as if it's
> reading
> random absolute coordinates?

Well not random, it would just stay on the same position until next
touch, just like with touch screens.

François.