No movement starting from below softbutton RBT-value

[Peter Hutterer]

On Fri, Jun 13, 2014 at 12:11:00PM +0200, Joschi Brauchle wrote:
> On 06/13/2014 11:06 AM, Joschi Brauchle wrote:
> >What I am getting is that movement is ignored starting below a certain
> >horizonal line (strongly suspecing y>RBT=4326). The x position of the
> >start of the movement does not matter. Hence it is _not_ confined to the
> >right button area I am trying to achieve. Once I move above this
> >horizontal line, movement starts and behaves normal.
> 
> What I am trying to achieve is this:
> |------------------------------|
> |                              |
> |                              |
> |                              |
> |                              |
> |                              |
> |               |--------------|
> |               |RIGHT SOFT BTN|
> |---------------|--------------|
> 
> But motion is ignored like so:
> |------------------------------|
> |                              |
> |                              |
> |                              |
> |                              |
> |                              |
> |------------------------------|
> | No motion initiated in here  |
> |------------------------------|
> 
> >> see synaptics.c:HandleState, line 3117 or so, where the "ignore motion
> >> *starting* inside softbutton areas" comment is. If that doesn't work
> >> for you
> >> then here is either some weird HW issue or there is a bug. Are you on
> >> synaptics 1.7.x or 1.8?
> 
> Looking at the function "is_inside_top_or_bottom_button_area" here:
> http://cgit.freedesktop.org/xorg/driver/xf86-input-synaptics/tree/src/synaptics.c?id=xf86-input-synaptics-1.8.0#n1542
> 
> I see that only the "y" coordinate is checked, see comment:
> /* We don't have a left button area, so we only check the y axis */

read this as: "We don't have an _explicit_ left button area, so ..."

Cheers,
   Peter