[Wayland-bugs] [Bug 104828] Wobbly AlpsPS/2 ALPS DualPoint TouchPad

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104828

--- Comment #26 from Peter Hutterer <peter.hutterer at who-t.net> ---
the xorg log shows up in the journal on most distros. but for development you
should run libinput debug-events, because in your case you don't care about the
exact pointer movement as such, but rather about whether pointer movement
happens at all. so if you don't see POINTER_MOTION events float past when you
hold your finger still, that means it's working. If you do, check the deltas.
the libinput debug-gui will show the pointer motion as seen by libinput too.
Both can be run in the build directory, much easier than install && restart x.

Note that touchpads are *always* in absolute coordinates, the conversion to
relative movement is handled in libinput. So t->point.x is the current position
of the touch in device coordinates. See the mailing list for more comments.

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