Earlier quoted context omitted.
Thanks for your detailed reply. Unfortunately the Microsoft Precision Touchpad on my Dell XPS 2-in-1 2019 (Wacom HID 48EE Finger) does not support ABS_MT_TOUCH_MAJOR; it's worth mentioning however that Windows works perfectly and palm rejection seems to work on a hardware/firmware level (no output when running "libinput debug-events" and moving a palm) making libinput restrictions unnecessary and most definitely unwa…
Sounds extremely strange. You should fill an issue. My Dell Latitude E7440 follows description and I believe same is true for most of the users. I have to start movement at least diagonally, once it catches further direction does not matter. It produces no output when running `libinput debug-events`. I've recompiled my version with 0% just to check. /* palm edges are 8% of the width on each side */ - mm.x = min(8, wi…
Ultimately, I would prefer that this kind of feature is configurable in userland. Wayland's documentation page mentions that "Data from touchpads showed that almost all palm events during tying on a Lenovo T440 happened in the left-most and right-most 5% of the touchpad. The T440 series has one of the largest touchpads", and this may have been true several years ago, but it's quite common now to have larger and wider form-factor touchpads.