xorg-conf: optimized xorg.conf settings for xf86-input-synaptics on mario mp.

chromeos-base/xorg-conf/files/xorg.conf-0.0.4

Index: chromeos-base/xorg-conf/files/xorg.conf-0.0.4
diff --git a/chromeos-base/xorg-conf/files/xorg.conf-0.0.4 b/chromeos-base/xorg-conf/files/xorg.conf-0.0.4
index 21459f974ab11a8683e4bc83ed513a65b6353bfb..ff58cd2972f64f08055cfff932ac5079b6f4d049 100644
--- a/chromeos-base/xorg-conf/files/xorg.conf-0.0.4
+++ b/chromeos-base/xorg-conf/files/xorg.conf-0.0.4
@@ -25,26 +25,36 @@ Section "InputDevice"
     Option     "Protocol" "auto-dev"
     Option     "SHMConfig" "on"
     Option     "CorePointer"
-    Option     "MinSpeed" "0.4"
-    Option     "MaxSpeed" "1.0"
-    Option     "AccelFactor" "0.0035"
+
+    Option     "FingerLow" "40"
+    Option     "FingerHigh" "43"
+    Option     "MaxTapTime" "150"
+    Option     "MaxTapMove" "50"
+    Option     "MaxDoubleTapTime" "150"
+    Option     "SingleTapTimeout" "150"
+    Option     "EmulateTwoFingerMinZ" "50"

[tv, 2011/02/22 22:52:35]

If this behavior is desired, this value seems a little too low to me. I can
trigger the emulation (resulting in a scroll) simply by letting too much of my
finger, or the side of my thumb, onto the pad. I have a big build, but not huge
hands; I can imagine this could cause trouble for people who are notably
overweight, or have a health condition causing hand swelling.

+    Option     "VertScrollDelta" "7"
     Option     "HorizScrollDelta" "6"
-    Option     "VertScrollDelta" "18"
     Option     "HorizEdgeScroll" "0"
     Option     "VertEdgeScroll" "0"
+    Option     "VertTwoFingerScroll" "1"
+    Option     "HorizTwoFingerScroll" "0"
+    Option     "MinSpeed" "0.4"
+    Option     "MaxSpeed" "1.9"

[tv, 2011/02/27 00:39:36]

This is definitely much more usable than the default of 1.0. Maybe a little too
much on the high end, but of course it's adjustable.

This needs to be coupled with a change to
/opt/google/touchpad/tpcontrol_synclient that provides a different gradient in
maximum speeds (as its highest MaxSpeed is currently still 1.0).

+    Option     "AccelFactor" "0.045"
+    Option     "EdgeMotionMaxSpeed" "1"
     Option     "TapButton1" "1"
     Option     "TapButton2" "3"
     Option     "TapButton3" "2"
-    Option     "MaxTapTime" "180"
-    Option     "FingerLow" "40"
-    Option     "FingerHigh" "43"
-    Option     "EmulateTwoFingerMinZ" "32"
-    Option     "VertTwoFingerScroll" "1"
-    # Horizontal scrolling is disabled for now as it interferes w/ vertical.
-    Option     "HorizTwoFingerScroll" "0"
-    # The resolutions were balanced for the Dell Latitudes
-    Option     "HorizResolution" "75"
-    Option     "VertResolution" "108"
+    Option     "PalmDetect" "1"
+    Option     "PalmMinWidth" "5"

[tv, 2011/02/22 22:52:35]

The palm detection seems to work OK from a few hours of testing, though similar
comments to EmulateTwoFingerMinZ apply here. If I use the flat side of my middle
or ring finger tips, it's really easy to trigger palm-detect (and the pointer
stops dead).

+    Option     "PalmMinZ" "120"
+    Option     "CoastingSpeed" "255"
+    Option     "CoastingFriction" "50"
+    Option     "AreaLeftEdge" "1375"
+    Option     "AreaRightEdge" "5550"
+    Option     "AreaTopEdge" "1250"
+    Option     "AreaBottomEdge" "4600"
 EndSection
 
 # Include support for USB as a secondary mouse device.