--- created: 2009-02-28 01:36:04 +0100 layout: redirect layout_old: default redirect_to: https://blog.mbirth.de/archives/2009/02/28/synaptics-touchpad.html tags: - know-how - software - linux title: Synaptics Touchpad toc: false updated: 2009-07-23 12:45:13 +0200 --- To use features like *circular scrolling*[^1] of a Synaptics touchpad, you need to add the following lines to your `/etc/X11/xorg.conf`: ~~~ Section "InputDevice" Identifier "Synaptics Touchpad" Driver "synaptics" Option "SHMConfig" "true" Option "SendCoreEvents" "true" Option "Device" "/dev/psaux" Option "Protocol" "auto-dev" Option "HorizEdgeScroll" "0" EndSection ~~~ You also need to add the following line into your `ServerLayout` section in that file: InputDevice "Synaptics Touchpad"

After an upgrade to Jaunty, these lines are commented out by the update-manager. Just uncomment them and everything should work again.

Afterwards you can install the [gsynaptics](apt://gsynaptics) package to manage the settings for your touchpad - incl. enabling the circular scrolling. [^1]: It's like a jogdial: just draw a circle with your finger starting from top-center. Clockwise will scroll down, counter-clockwise will scroll up.