Touchpad in Dell Latitude E4310 not detected by kernel

[ash]

The touchpad in Dell Latitude E4310 not detected by kernel. I have no Touchpad tab in Mouse settings. Features such as double scroll and side scroll don't work. There's no touchpad in /proc/bus/input/devices. Therefore I assume it's a kernel issue. I have the latest and updated Lucid Lynx.

As described in https://wiki.ubuntu.com/DebuggingTouchpadDetection I'm attaching the output of the following commands:

$ cat /proc/bus/input/devices > devices
$ xinput --list > xinput
$ cat /var/log/Xorg.0.log > Xorg.0.log

And the following:

$ uname -a > uname-a.log
$ cat /proc/version_signature > version.log
$ dmesg > dmesg.log
$ sudo lspci -vnvn > lspci-vnvn.log

[Christophe Dumez (hydr0g3n)]

This kernel works for me (I have a E4310 too):
https://launchpad.net/~xorg-edgers/+archive/ppa/+files/linux-image-2.6.35-20-generic_2.6.35-20.29_i386.deb

Don't use more recent kernels though (*-21 and *-22) since they are affected by this bug:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/641091

[lancelot666 (a-launchpad-net-beneficium-de)]

The bug exists still in 2.6.35-22-generic x86_64

[Alexey Androsov (doochik)]

I think this bug is duplicate of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/550625/