touchpad: only try to detect touchpad wobbling with one finger down

Too many touches are unreliable with 2+ fingers down and we should error on
the side of not detecting wobbling.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

diff --git a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c
index 56c618eb8ab11dc08119b569322abd29c1b3f3f8..d4f02eb623a030879de1f3cfff01c0c9c423a96f 100644 (file)
--- a/src/evdev-mt-touchpad.c
+++ b/src/evdev-mt-touchpad.c
@@ -155,6 +155,10 @@ tp_detect_wobbling(struct tp_dispatch *tp,
        int dx, dy;
        uint64_t dtime;
 
+       if (tp->nfingers_down == 1 &&
+           tp->nfingers_down == tp->old_nfingers_down)
+               return;
+
        if (tp->hysteresis.enabled)
                return;