Synaptics touchpad not configured in xorg.conf on Samsung X20

[Michael Helmling]

Binary package hint: xserver-xorg

Installed dapper (release, kubuntu) on a Samsung X20 laptop, which has a synaptics touchpad with scroll function at the right side.
The installer didn't recognize this, there was no "Synaptics" Input-Device Section in xorg.conf. So it was useable for moving the cursor, but scrolling didn't work.

Added this section to get it work:

Section "InputDevice"
        Identifier "Synaptics Touchpad"
        Driver "synaptics"
        Option "SendCoreEvents" "true"
        Option "Device" "/dev/psaux"
        Option "Protocol" "auto-dev"
        Option "HorizScrollDelta" "0"
        Option "SHMConfig" "on"
EndSection

and the appropriate ServerLayout entry.

[66dny9r02 (66dny9r02)]

The same is true for my Acer Aspire 3633 laptop. For this laptop, adding this (with the appropriate ServerLayout entry) is the solution:

Section "InputDevice"
 Identifier "TouchPad"
 Driver "synaptics"
 Option "AlwaysCore"
 Option "Device" "/dev/input/mice"
 Option "Protocol" "auto-dev"
 Option "LeftEdge" "1700"
 Option "RightEdge" "5300"
 Option "TopEdge" "1700"
 Option "BottomEdge" "4200"
 Option "FingerLow" "25"
 Option "FingerHigh" "30"
 Option "MaxTapTime" "180"
 Option "MaxTapMove" "220"
 Option "VertScrollDelta" "100"
 Option "MinSpeed" "0.09"
 Option "MaxSpeed" "0.18"
 Option "AccelFactor" "0.0015"
 Option "SHMConfig" "on"
 Option "FastTaps" "on"
 Option "Emulate3Buttons" "on"
EndSection

If additional information would be useful (hardware IDs or so), feel free to drop me a line.

[Tormod Volden (tormodvolden)]

Does running "sudo dpkg-reconfigure xserver-xorg" automatically insert the synaptics section? If so, this is probably a duplicate of bug #40503.

[Launchpad Janitor (janitor)]

[Expired for xorg-server (Ubuntu) because there has been no activity for 60 days.]