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Turn down the default sensitivity for unibody MacBook touchpads

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The touchpads are too sensitive by default. A touch is activated when a
finger hovers a millimeter off the device. This change turns down the
default sensitivity so that accidental touchpad interactions are
lessened and pointer interaction accuracy is increased.

Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Chase Douglas
2012-06-08 13:53:38 -07:00
committed by Peter Hutterer
parent 4fa880d2b1
commit 0e222876d7
1 changed files with 9 additions and 3 deletions
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12
src/synaptics.c
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@@ -319,17 +319,23 @@ static void
calculate_tap_hysteresis(SynapticsPrivate * priv, int range,
int *fingerLow, int *fingerHigh)
{
if (priv->model == MODEL_ELANTECH) {
switch (priv->model) {
case MODEL_ELANTECH:
/* All Elantech touchpads don't need the Z filtering to get the
* number of fingers correctly. See Documentation/elantech.txt
* in the kernel.
*/
*fingerLow = priv->minp + 1;
*fingerHigh = priv->minp + 1;
}
else {
break;
case MODEL_UNIBODY_MACBOOK:
*fingerLow = 70;
*fingerHigh = 75;
break;
default:
*fingerLow = priv->minp + range * (25.0 / 256);
*fingerHigh = priv->minp + range * (30.0 / 256);
break;
}
}