[PATCH synaptics] Circular exclusion areas

Daniel Colascione dancol at dancol.org
Wed Oct 30 01:11:10 CET 2013

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.

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