The main purpose of the edge zone is to detect palms in the area where we cannot assume a full finger size and thus cannot use any other palm detection mechanism. 8mm should be large enough that a finger should be detected based on other properties (size, pressure, ...).
https://bugs.freedesktop.org/show_bug.cgi?id=103330 Signed-off-by: Peter Hutterer <[email protected]> --- src/evdev-mt-touchpad.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c index 81a56a05..8bb0661b 100644 --- a/src/evdev-mt-touchpad.c +++ b/src/evdev-mt-touchpad.c @@ -2646,8 +2646,8 @@ tp_init_palmdetect_edge(struct tp_dispatch *tp, if (width < 70.0) return; - /* palm edges are 8% of the width on each side */ - mm.x = width * 0.08; + /* palm edges are 8% of the width on each side up to a max of 7mm */ + mm.x = min(8, width * 0.08); edges = evdev_device_mm_to_units(device, &mm); tp->palm.left_edge = edges.x; -- 2.13.6 _______________________________________________ wayland-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/wayland-devel
