[PATCH synaptics] Circular exclusion areas

Daniel Colascione dancol at dancol.org
Thu Oct 31 07:41:31 CET 2013


On 10/30/2013 11:41 PM, Peter Hutterer wrote:
 > On Tue, Oct 29, 2013 at 05:11:10PM -0700, Daniel Colascione wrote:
 >> On 10/29/2013 05:09 PM, Peter Hutterer wrote:
 >>> On Mon, Oct 28, 2013 at 12:54:58AM -0700, Daniel Colascione wrote:
 >>>> The attached patch adds support for defining circular dead areas
 >>>> around corners.  At least in my use case, it doesn't make sense to
 >>>> make large areas of the trackpad dead when only the corners are
 >>>> problematic.
 >>>
 >>> I need more info here. what exactly is  the "problematic" bit about the
 >>> corners?
 >>
 >> On my machine (a Lenovo X1 Carbon), my palms frequently touch the
 >> corners of the clickpad while I'm typing; palm detection is broken
 >> because the kernel keeps reporting a finger width of zero. (See
 >> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1245328.) Even
 >> if palm detection were working, though, I don't think it'd help:
 >> z-values seem to be about the same when I'm using the trackpad and
 >> mashing it while typing.
 >
 > wouldn't this be better served by the classic 
disable-touchpad-while-typing
 > then?

No. I still want to be able to move the cursor. Disabling the corners is 
the last disruptive option.


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