diff options
| author | Peter Hutterer <peter.hutterer@who-t.net> | 2017-10-23 15:30:41 +1000 |
|---|---|---|
| committer | Peter Hutterer <peter.hutterer@who-t.net> | 2017-10-24 08:28:32 +1000 |
| commit | 3e9e0e2eb18f0eae5ffe2be756903d92b8b88f75 (patch) | |
| tree | 6eab7603c09a6f3fe108b3640a07c17e9b371f33 | |
| parent | 017d6bb903cd45efb9340d1837cbc8a2c9899ec0 (diff) | |
touchpad: cap the edge palm detection zones at 8mm
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 <peter.hutterer@who-t.net>
Reviewed-by: Daniel Martin <consume.noise@gmail.com>
| -rw-r--r-- | src/evdev-mt-touchpad.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c index 81a56a05..2ef6ae45 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 8mm */ + mm.x = min(8, width * 0.08); edges = evdev_device_mm_to_units(device, &mm); tp->palm.left_edge = edges.x; |