I am also experiencing this problem on my XPS M1210 after upgrading from 8.10 to the 9.04 beta. It appears there are several bugs regarding scrolling with a touchpad, so perhaps they are all related to the synaptics driver.
Output from dmesg: mich...@baxter:~$ dmesg | grep input [ 1.466320] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input0 [ 1.466801] input: Power Button (CM) as /devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input1 [ 1.466851] input: Sleep Button (CM) as /devices/LNXSYSTM:00/device:00/PNP0C0E:00/input/input2 [ 1.506590] input: Macintosh mouse button emulation as /devices/virtual/input/input3 [ 2.030933] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4 [ 9.002194] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A03:00/device:21/device:22/input/input5 [ 9.112490] input: PC Speaker as /devices/platform/pcspkr/input/input6 [ 10.116212] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input7 I also found this in the output of dmesg when searching for synaptic: mich...@baxter:~$ dmesg | grep synaptic [ 9.177902] synaptics was reset on resume, see synaptics_resume_reset if you have trouble on resume [ 2279.951457] synaptics was reset on resume, see synaptics_resume_reset if you have trouble on resume Not sure what this means. The scrolling is broken whether it is a fresh boot or a resume. Also doesn't appear to be any errors in X's log: mich...@baxter:~$ tail /var/log/Xorg.0.log (II) SynPS/2 Synaptics TouchPad: finger width range 0 - 0 (II) SynPS/2 Synaptics TouchPad: buttons: left right middle double triple (--) SynPS/2 Synaptics TouchPad touchpad found (**) SynPS/2 Synaptics TouchPad: always reports core events (II) XINPUT: Adding extended input device "SynPS/2 Synaptics TouchPad" (type: TOUCHPAD) (**) SynPS/2 Synaptics TouchPad: (accel) keeping acceleration scheme 1 (**) SynPS/2 Synaptics TouchPad: (accel) filter chain progression: 2.00 (**) SynPS/2 Synaptics TouchPad: (accel) filter stage 0: 20.00 ms (**) SynPS/2 Synaptics TouchPad: (accel) set acceleration profile 0 (--) SynPS/2 Synaptics TouchPad touchpad found -- Vertical scroll does not work with touchpad on a Dell XPS M1210 (Ubuntu 9.04) https://bugs.launchpad.net/bugs/333518 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs