libinput Acer c720 Observations

Peter Hutterer peter.hutterer at
Wed Jun 10 23:56:17 PDT 2015

On Wed, Jun 10, 2015 at 09:44:54PM -0600, Wade Berrier wrote:
> > > As an aside, it sounds like the mouse team at google pressure
> > > calibrates [2] their hardware.  Is libinput normalizing pressure in
> > > addition to dpi?  If so, does the hardware database also include
> > > information for device specific pressure calibration?
> > 
> > libinput doesn't use pressure on touchpads yet. it's somewhere on the 
> > list, but so far we've gotten away without having to worry about it
> > :)
> I imagine this will become much more relevant at some point:
> (I must admit, I tried this touchpad at the apple store and
> surprisingly it feels incredibly intuitive, and I'm not a mac user.)

the kernel has support for these already but I haven't seen one myself yet.
however iirc the kernel also sends BTN_LEFT depending on the pressure so we
still don't need to care about it for normal functionality :)


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