This turns out to be a combination of several issues: The kernel driver likely does not have a driver for the touchpad which supports multiple fingers. The touchpad however does support reporting fingerwidth and can therefore be used with two-finger emulation.
Two-finger emulation cannot be turned on using the Gnome Mouse capplet. See Gnome bug #625163 Even if one turns on two-finger emulation using the xinput interface, two-finger scrolling does not work. This is because, on Ubuntu, the default value for the property "Synaptics Two-Finger Pressure" is 280, which is much too high. A Fedora 14 Live CD i booted for testing, had a default value of 29 for that property. Indeed, lowering that value under Ubuntu makes Two-finger scrolling work. See the upstream bug for more info. I don't know why this pressure default value is wrong on Ubuntu. It could be due do a different synaptics version, or due to a patch in Ubuntu? -- Touchpad on Thinkpad T400s doesn't support two-finger scroll https://bugs.launchpad.net/bugs/648671 You received this bug notification because you are a member of Registry Administrators, which is the registrant for XOrg-Driver-Synaptics. _______________________________________________ Mailing list: https://launchpad.net/~registry Post to : [email protected] Unsubscribe : https://launchpad.net/~registry More help : https://help.launchpad.net/ListHelp
