[PATCH libinput 1/1] touchpad: reduce palm detection threshold to 70mm

Peter Hutterer peter.hutterer at who-t.net
Wed Apr 15 23:18:59 PDT 2015


https://bugzilla.redhat.com/show_bug.cgi?id=1209753 lists a touchpad 76mm wide
that suffers from palm touches

Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
 src/evdev-mt-touchpad.c | 2 +-
 test/touchpad.c         | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c
index 4e5a558..452cb85 100644
--- a/src/evdev-mt-touchpad.c
+++ b/src/evdev-mt-touchpad.c
@@ -1135,7 +1135,7 @@ tp_init_palmdetect(struct tp_dispatch *tp,
 
 		/* Enable palm detection on touchpads >= 80 mm. Anything smaller
 		   probably won't need it, until we find out it does */
-		if (width/device->abs.absinfo_x->resolution < 80)
+		if (width/device->abs.absinfo_x->resolution < 70)
 			return 0;
 	}
 
diff --git a/test/touchpad.c b/test/touchpad.c
index cd86f04..4e425f5 100644
--- a/test/touchpad.c
+++ b/test/touchpad.c
@@ -2469,7 +2469,7 @@ touchpad_has_palm_detect_size(struct litest_device *dev)
 
 	rc = libinput_device_get_size(dev->libinput_device, &width, &height);
 
-	return rc == 0 && width >= 80;
+	return rc == 0 && width >= 70;
 }
 
 START_TEST(touchpad_palm_detect_at_edge)
-- 
2.3.4



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