From 30a398591ba2d7b50767fb2f7d55b2caff491cd3 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Tue, 24 Apr 2018 15:57:04 +1000
Subject: [PATCH] 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>
---
 src/evdev-mt-touchpad.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c
index 56c618eb..d4f02eb6 100644
--- 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;