My xorg.conf lacked the option Option "Device" "/dev/psaux"
however, after adding it, nothing changes. In particular, different events are assigned each time: $ grep -i event /var/log/Xorg.0.log (--) Alps Touchpad auto-dev sets device to /dev/input/event2 (**) Option "Device" "/dev/input/event2" (**) Alps Touchpad: always reports core events (--) Alps Touchpad auto-dev sets device to /dev/input/event2 (**) Option "Device" "/dev/input/event2" (--) Alps Touchpad auto-dev sets device to /dev/input/event3 (**) Option "Device" "/dev/input/event3" $ grep -i synaptic /var/log/Xorg.0.log (II) LoadModule: "synaptics" (II) Loading /usr/lib/xorg/modules/input/synaptics_drv.so (II) Module synaptics: vendor="The XFree86 Project" (II) LoadModule: "synaptics" (II) Reloading /usr/lib/xorg/modules/input/synaptics_drv.so (II) Synaptics touchpad driver version 0.14.6 (1406) Synaptics DeviceInit called SynapticsCtrl called. Synaptics DeviceOn called Synaptics DeviceOff called Synaptics DeviceOn called The single DeviceOff in this log apparently correspond to switching once to tty and back. Its effect seems to be to enable scrolling and disabling tapping. Weird. -- Problems with Alps touchpad after upgrade to Edgy https://launchpad.net/bugs/69152 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs