Comment 103 for bug 565543

Hi Sam,

I have the very same laptop. To make the touchpad recognized, edit your
"/etc/default/grub", and add the following:


Then run "sudo grub-install" and reboot. The touchpad will be recognized, it
will almost work but every now and then it will become almost impossible to
control (at least, that's what happens to me).

In those cases, remove and reload the psmouse kernel module:

sudo rmmod psmouse
sudo modprobe psmouse

Hope it helps, ciao


On Fri, Jan 14, 2011 at 2:11 PM, Ginja_Sam <email address hidden>wrote:

> I'm having the same problem.
> I am almost upset that I can't use Ubuntu on this laptop.
> My problem seems to be far worst than most though,
> this laptop is brand new (literally weeks old) and the trackpad
> in this Sony VAIO E Series VPCEB3C5E doesn't work at all.
> Nothing. No motion, no vertical/horizontal scrolling, not even the buttons.
> I really hope this gets solved, as I love Ubuntu much more than windows,
> but I can't stand not having a functional trackpad to work with.
> --
> You received this bug notification because you are a direct subscriber
> of the bug.
> Title:
> Alps touchpad detected as ImPS/2 Generic Wheel Mouse(in VAIO E series)
> after the kernel upgrade
> Status in “linux” package in Ubuntu:
> New
> Bug description:
> Initially the ALPS touchpad was detected by the kernel but does not
> support horizontal and vertical support but after the kernel upgrade
> to 10.04 vertical scroll is working but horizontal scroll is not
> working. And the kernel is not detecting the ALPS touchpad and the cat
> /proc/bus/input/devices says it is a PS2 mouse ..
> This is seen in sony vaio E series in particular ...
> Also Bill in Comment #52 says
> Acer Aspire One 532h (Alps touchpad).
> I booted the distribution from a thumb drive, but once I installed from
> the thumb drive and updated Ubuntu (10.04), I lost the touchpad (works as a
> mouse) ..
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