I'm now running 2.6.39-999-generic #201105130905 SMP Fri May 13 10:45:29 UTC 2011 i686 GNU/Linux and X.Org X Server 1.9.0 Release Date: 2010-08-20
xinput --list-props gives me this: Device 'ImPS/2 Generic Wheel Mouse': Device Enabled (133): 1 Coordinate Transformation Matrix (135): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000 Device Accel Profile (253): 0 Device Accel Constant Deceleration (254): 1.000000 Device Accel Adaptive Deceleration (255): 1.000000 Device Accel Velocity Scaling (256): 10.000000 Evdev Reopen Attempts (251): 10 Evdev Axis Inversion (257): 0, 0 Evdev Axes Swap (259): 0 Axis Labels (260): "Rel X" (143), "Rel Y" (144) Button Labels (261): "Button Left" (136), "Button Middle" (137), "Button Right" (138), "Button Wheel Up" (139), "Button Wheel Down" (140), "Button Horiz Wheel Left" (141), "Button Horiz Wheel Right" (142) Evdev Middle Button Emulation (262): 2 Evdev Middle Button Timeout (263): 50 Evdev Wheel Emulation (264): 0 Evdev Wheel Emulation Axes (265): 0, 0, 4, 5 Evdev Wheel Emulation Inertia (266): 10 Evdev Wheel Emulation Timeout (267): 200 Evdev Wheel Emulation Button (268): 4 Evdev Drag Lock Buttons (269): 0 but none of those look appropriate for touchpad sensitivity or tap-to-click. I attached a file of serial i/o debug from the i8042 device to an ubuntu bug report covering this problem: https://bugs.launchpad.net/bugs/755518 I hope the bytes sent by the touchpad make sense to someone. Cheers Ed
