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Old 12-29-2009, 12:00 PM   #1
Registered: May 2009
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Synaptics - HAL - horizontal scroll + two-finger tap=middle click

Hey guys, running Slackware 13 x86_64 here. Back on 12.2 I was able to use two-finger simultaneous tap to emulate middle click but I am having trouble reproducing that in 13.

I first tried a xorg.conf containing the following:
#Section "InputDevice"
#       Identifier  "Mouse0"
#       Driver      "synaptics"
#       Option      "Protocol" "auto"
#       Option      "Device" "/dev/input/mice"
#       Option      "ZAxisMapping" "4 5 6 7"
#       Option      "HorizEdgeScroll" "true"
#       Option      "TapButton1" "1"
#       Option      "TapButton2" "2"
#       Option      "Emulate3Buttons" "true"
With this configuration, I could scroll horizontally, but not middle click via two-finger tap. Single finger tap to click was working though.

After a while, I tried using the hal fdi policy file to accomplish this. The /etc/hal/fdi/policy/11-x11-synaptics.fdi file contains:
<merge key="input.x11_options.HorizEdgeScroll" type="string">1</merge>
<merge key="input.x11_options.CircularScrolling" type="string">1</merge>
<merge key="input.x11_options.CircScrollTrigger" type="string">8</merge>
<merge key="input.x11_options.VertEdgeScroll" type="string">1</merge>
<merge key="input.x11_options.TapButton1" type="string">1</merge>
<merge key="input.x11_options.TapButton2" type="string">2</merge>
<merge key="input.x11_options.TapButton3" type="string">3</merge>
And with this, neither horizontal scroll nor two-finger tap to middle click works. Single finger tap still works though.

From what I can gather in 'man synaptics' I believe I do have the necessary settings, but still it's not working.

Anyone with a synaptics touchpad willing to share their config files to get this working?


edit: after restarting, horizontal scroll now works with the hal policy, but two finger tap is still not functioning

Last edited by botnet; 12-29-2009 at 01:57 PM.
Old 12-29-2009, 06:50 PM   #2
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With my touchpad, I assign the top left corner so that a single tap produces a middle click.
<merge key="input.x11_options.LTCornerButton" type="string">2</merge>
Old 12-29-2009, 07:20 PM   #3
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Old 12-30-2009, 01:29 AM   #4
Registered: May 2009
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thanks allend, i will try that

elsheepo, that links contains nothing about two-finger tap
Old 12-30-2009, 06:38 AM   #5
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My config has two and three finger tap along with two finger scroll.

<?xml version="1.0" encoding="ISO-8859-1"?>
<deviceinfo version="0.2">
    <match key="info.capabilities" contains="input.touchpad">
        <merge key="input.x11_driver" type="string">synaptics</merge>
        <merge key="input.x11_options.SHMConfig" type="string">true</merge>
        <merge key="input.x11_options.MaxTapMove" type="string">2000</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.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>


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