Created attachment 43146 touchpad.svg This plot of the X axis values shows the problem nicely. In the plot, the x axis is just the events in consecutive order, y axis is the actual X value the kernel gave us.
The kernel itself claims that the max value is 5472. You can see that many events go above this value (up to 5976). Then there are a few outliers at 8176 which I suspect is the scroll bar. So the clipping patch makes you lose all these outliers plus all data that goes above the announced maximum. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in Ubuntu. https://bugs.launchpad.net/bugs/591656 Title: scrolling issues using touchpad To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-driver-synaptics/+bug/591656/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp