Multi touch for any,all synaptics touchpad
Multi-touch became trendy after iphone came up with it. We are seeing many new laptops with multi-touch. At hardware level, there is nothing special that you need, to make multi-touch work. You can also do two-finger scroll and two-finger tap to right/middle click. Also, three-finger tap, but, for me it is very hard to press three fingers at the same time(1 out of 10).
Create new file
gksudo gedit /etc/hal/fdi/policy/11-x11-synaptics.fdiPaste the following code into the file and save it.
<?xml version="1.0" encoding="ISO-8859-1"?> <deviceinfo version="0.2"> <device> <match key="info.capabilities" contains="input.touchpad"> <merge key="input.x11_driver" type="string">synaptics</merge> <merge key="input.x11_options.SHMConfig" type="string">On</merge> <merge key="input.x11_options.EmulateTwoFingerMinZ" type="string">90</merge> <merge key="input.x11_options.VertTwoFingerScroll" type="string">1</merge> <merge key="input.x11_options.HorizTwoFingerScroll" type="string">1</merge> <merge key="input.x11_options.TapButton1" type="string">1</merge> <merge key="input.x11_options.TapButton2" type="string">3</merge> <!--two finger tap -> middle clieck(3) --> <merge key="input.x11_options.TapButton3" type="string">2</merge> <!--three finger tap -> right click(2). almost impossible to click --> </match> </device> </deviceinfo>Restart hal and enjoy multitouch touchpad.
sudo /etc/init.d/hal restart
Update: Diagnosing your touchpad for multi-finger-sensing-capabilityFew people have problem with this not working, while it works for few others. This is posted in ubuntu forums
synclient -m 100Fifth column in the output f is number of fingers on your touchpad. Put two or more fingers on your touchpad and watch the column. If you see it more than one, this should work for you.