touchscreen_calibration: relax the threshold for untouched deltas
Relaxed the threshold of untouched deltas values a little bit so that
it would not generate false negatives unnecessarily.
BUG=chrome-os-partner:43044
TEST=manually tested.
Change-Id: I044d0d2539123505c7fe7ec82890c785f0079bd2
Reviewed-on: https://chromium-review.googlesource.com/290227
Reviewed-by: Chung-yih Wang <cywang@chromium.org>
Commit-Queue: Shyh-In Hwang <josephsih@chromium.org>
Tested-by: Shyh-In Hwang <josephsih@chromium.org>
diff --git a/py/test/pytests/touchscreen_calibration/boards/ryu/ryu.conf b/py/test/pytests/touchscreen_calibration/boards/ryu/ryu.conf
index a279bd3..0a057df 100644
--- a/py/test/pytests/touchscreen_calibration/boards/ryu/ryu.conf
+++ b/py/test/pytests/touchscreen_calibration/boards/ryu/ryu.conf
@@ -16,7 +16,7 @@
# The lower bound and upper bound were determined by examining tens of panels.
DELTA_LOWER_BOUND: 120
DELTA_HIGHER_BOUND: 500
-DELTA_UNTOUCHED_HIGHER_BOUND: 12
+DELTA_UNTOUCHED_HIGHER_BOUND: 18
NORMALIZED_DEVIATION_THRESHOLD: 0.2
# relaxed deviation for edge sensors
NORMALIZED_EDGE_DEVIATION_THRESHOLD: 0.7
