libinput 0.15.0 in Fedora 22 seems to have suddenly changed the trackpad defaults on my Thinkpad W540. Two-finger right click no longer works. It can be restored with:
$ xinput set-prop 13 283 0 1
Unfortunately the GNOME 3 GUI has no way to choose this.
gsettings has a toggle for it, under:
what's the value of that and does the xorg driver property change when you toggle it? gsettings range org.gnome.desktop.peripherals.touchpad click-method tells you the allowed values
Gnome has (accidentally) enabled clickfinger behaviour on most touchpads until a recent update, now it takes what the libinput default is for a given device. For a W540, this would be software buttons so if the click method shows "default", everything is working as expected.
*** This bug has been marked as a duplicate of bug 1206961 ***
It does in fact show 'default', so I guess this is the new intended behavior.
The right click button is in the wrong location on the W540 trackpad, but that is a separate bug.
can you file a separate bug against libinput for that please?
we tested with the T540 which should be the same trackpad, so unless there's a kernel issue I'm not sure where this comes from. Please include the output of the touchpad-edge-detector tool and the evemu-describe output for that touchpad.
And maybe try to measure where the buttons are and where you'd expect them to be. Thanks.