[xf86-input-synaptics] Edge-scrolling fails on Acer Aspire One laptops

[Peter Hutterer]

On Sun, Jun 28, 2009 at 04:41:24PM -0700, Sean Estabrooks wrote:
> People are seeing edge-scrolling fail on their Acer Aspire One
> laptops.  There are bug reports in both Ubuntu[1] and Fedora[2].
> 
> The offending commit was:
> 
>  0f2802726f  Auto-adjust right_edge for touchpads with hardware scroll area
> 
> Where, near as i can tell, edge scrolling was purposely disabled if the
> RightEdge option was specified in the configuration.  This seems like
> an unfortunate decision since it broke many setups.
> 
> Is there any chance that a new option could be introduced for the new
> feature and the original semantics for the RightEdge option restored?
> 

Thanks! this looks much like
http://bugs.freedesktop.org/show_bug.cgi?id=21001 which I hadn't found the
reason for yet. 
And you're right, 0f2802726f looks very broken, albeit in a different
manner. The point of this was to auto-adjust the right edge setting to
accommodate for the special scroll area. in doing so, it doesn't honour the
actual edge margin though, leading to the scroll area becoming zero-sized
(or otherwise very small).

Pending the device data requested in 21001, that should be fixable.

Cheers,
  Peter