commit 5d6f1cd83db3c7871026254184b9d4ae531cd4e2
author Tom Wai-Hong Tam <waihong@chromium.org> Fri Dec 05 12:45:35 2014 +0800
committer chrome-internal-fetch <chrome-internal-fetch@google.com> Sat Dec 06 02:34:32 2014 +0000
tree f010ff31e011f90e52404cc3c0bc3470c9dc76da
parent d7445efa21ad858022e6478e7b9e0985ab13fb17

Chameleon: Increase the margin of pixel-diff for digital interfaces to 2

We saw some devices get a small amount of pixels with pixel-diff=2. As it
is a minor issue that an user does not notice, increasing the margin to
2 reduces some random failures.

BUG=chromium:438007
TEST=None, trivial change.

Change-Id: I6d20bba46f3b64e7d0812cda56bd3afd359762ab
Reviewed-on: https://chromium-review.googlesource.com/233346
Tested-by: Wai-Hong Tam <waihong@chromium.org>
Reviewed-by: Kalin Stoyanov <kalin@chromium.org>
Commit-Queue: Wai-Hong Tam <waihong@chromium.org>

client/cros/chameleon/screen_utility_factory.py

diff --git a/client/cros/chameleon/screen_utility_factory.py b/client/cros/chameleon/screen_utility_factory.py
index 5e93fd5..eb98a20 100644
--- a/client/cros/chameleon/screen_utility_factory.py
+++ b/client/cros/chameleon/screen_utility_factory.py
@@ -18,7 +18,7 @@
     """
 
     _PIXEL_DIFF_MARGIN_FOR_ANALOG = 30
-    _PIXEL_DIFF_MARGIN_FOR_DIGITAL = 1
+    _PIXEL_DIFF_MARGIN_FOR_DIGITAL = 2
 
     _WRONG_PIXELS_MARGIN_FOR_ANALOG = 0.04  # 4%
     _WRONG_PIXELS_MARGIN_FOR_DIGITAL = 0