Re: [gentoo-user] Synaptic touchpad sensitive after upgrade to Xorg 1.5.3

[Alan McKinnon <alan.mckinnon@gmail.com>]

On Tuesday 05 May 2009 14:37:06 Mike Mazur wrote:
> Hi,
>
> After my upgrade to Xorg 1.5.3 I reconfigured my synaptic touchpad to
> be controlled with hal. I copied the fdi policy found in
> /usr/share/hal/fdi/policy/11-x11-synaptics.fdi to /etc/hal/fdi/policy.
> My only changes are disabling VertTwoFingerScroll and setting
> TapButton1 and TapButton2 to 1 and 2, respectively.
>
> Now my touchpad is extremely sensitive: when moving the cursor from
> one end of the screen to another, I sometimes make multiple sweeps
> across the touchpad with my thumb, and I find that all of a sudden I'm
> inadvertently dragging a desktop icon or highlighting a block of text
> in the browser. I tried increasing the FingerHigh option, but this
> seemed to disable the click-drag feature altogether.
>
> Which option do I need to tweak to turn down this sensitivity?

I had the exact opposite problem. Several hal versions ago the touch pad was 
over-sensitive, where lightly brushing the pad with my thumb while pressing 
the spacebar caused multiple button1 taps. After some routine upgrade or other 
it went away. Here's my current policy file for comparison (mostly untouched 
from default):

<?xml version="1.0" encoding="ISO-8859-1"?>
<deviceinfo version="0.2">
  <device>
    <match key="info.capabilities" contains="input.touchpad">
      <match key="info.product" contains="Synaptics TouchPad">
        <merge key="input.x11_driver" type="string">synaptics</merge>
        <!-- Arbitrary options can be passed to the driver using
             the input.x11_options property since xorg-server-1.5. -->
        <!-- EXAMPLE:
        <merge key="input.x11_options.LeftEdge" type="string">120</merge>
        -->
      </match>
      <match key="info.product" contains="AlpsPS/2 ALPS">
        <merge key="input.x11_driver" type="string">synaptics</merge>
        <merge key="input.x11_options.SHMConfig" type="string">true</merge>
        <merge key="input.x11_options.LeftEdge" type="string">0</merge>
        <merge key="input.x11_options.RightEdge" type="string">1280</merge>
        <merge key="input.x11_options.TopEdge" type="string">0</merge>
        <merge key="input.x11_options.BottomEdge" type="string">800</merge>
        <merge key="input.x11_options.ClickFinger1" type="string">1</merge>
        <merge key="input.x11_options.ClickFinger2" type="string">3</merge>
        <merge key="input.x11_options.ClickFinger3" type="string">2</merge>
        <merge key="input.x11_options.HorizEdgeScroll" 
type="string">true</merge>
        <merge key="input.x11_options.VertEdgeScroll" 
type="string">true</merge>
        <merge key="input.x11_options.VertTwoFingerScroll" 
type="string">true</merge>
        <merge key="input.x11_options.HorizTwoFingerScroll" 
type="string">true</merge>
        <merge key="input.x11_options.HorizScrollDelta" 
type="string">0</merge>
        <merge key="input.x11_options.VertScrollDelta" 
type="string">40</merge>
        <merge key="input.x11_options.PressureMotionMinZ" 
type="string">10</merge>
        <merge key="input.x11_options.FingerLow" type="string">16</merge>
        <merge key="input.x11_options.FingerHigh" type="string">80</merge>
        <merge key="input.x11_options.FingerPress" type="string">256</merge>
        <merge key="input.x11_options.PalmDetect" type="string">0</merge>
        <merge key="input.x11_options.PalmMinWidth" type="string">10</merge>
        <merge key="input.x11_options.PalmMinZ" type="string">200</merge>
        <merge key="input.x11_options.MinSpeed" type="string">0.8</merge>
        <merge key="input.x11_options.MaxSpeed" type="string">1.2</merge>
        <merge key="input.x11_options.AccelFactor" type="string">0.10</merge>
        <merge key="input.x11_options.MaxTapMove" type="string">25</merge>
        <merge key="input.x11_options.MaxTapTime" type="string">223</merge>
        <merge key="input.x11_options.MaxDoubleTapTime" 
type="string">200</merge>
        <merge key="input.x11_options.TapButton1" type="string">1</merge>
        <merge key="input.x11_options.TapButton2" type="string">3</merge>
        <merge key="input.x11_options.TapButton3" type="string">2</merge>
        <merge key="input.x11_options.RTCornerButton" type="string">0</merge>
        <merge key="input.x11_options.RBCornerButton" type="string">0</merge>
        <merge key="input.x11_options.LTCornerButton" type="string">0</merge>
        <merge key="input.x11_options.LBCornerButton" type="string">0</merge>
      </match>
      <match key="info.product" contains="appletouch">
        <merge key="input.x11_driver" type="string">synaptics</merge>
      </match>
      <match key="info.product" contains="bcm5974">
        <merge key="input.x11_driver" type="string">synaptics</merge>
      </match>
    </match>
  </device>
</deviceinfo>


-- 
alan dot mckinnon at gmail dot com