Comment 434 for bug 550625
Revision history for this message
| Seth Forshee (sforshee) wrote Re: [Bug 550625] Re: Alps touchpad is recognized but synaptics clients and scrolling do not work | #434 |
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0e1f616
(Get the code!)
David: Thanks for testing! Almost everything you've mentioned is a
desktop issue more than a driver issue. The driver mostly just passes
the raw data from the touchpad up to the desktop, and the desktop
translates this data into motion or scrolling or tapping. Specifically,
I think most of the things you mention are features of the Xorg
synaptics module. So they aren't issues with the driver, and as
such they're really topics for separate bug reports.
I have addressed a couple of specific points in the comments below.
> * Two-fingered tap to right-click works, but is very difficult to get
> right. I have to try several times to get a contextual menu to appear,
> but then other times I accidentally invoke it. For now, I've disabled
> this. I can never get it to detect a three-fingered tap. Neither of
> these are big deals for me.
As I understand it, becuase this has limited multitouch capabilities the
Xorg synaptics module doesn't support three-finger taps. I've been told
that it might be possible to special-case the driver to support it for
specific touchpads, but I haven't investigated.
> * When I hold my finger to the touchpad, the pointer quivers slightly. I
> believe you mentioned that this behavior would be improved in Oneric
> (I'm using Natty).
Yes, this just reflects that the data from the touchpad is jittery. The
version of the synaptics module in oneiric adds some filtering that I've
seen eliminates this with some touchpads, although I haven't verified
this with ALPS speicifically. I'm not seeing such jitter with ALPS
touchpads under oneiric.