@Odin I don't know if this bug is really a duplicated of 359363 or 550625 In Bug 550625 I found a solution which enables the scrolling with the touchpad of my Dell M4500:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/550625 The solution described (see #154, #203 and other entries) is based on recompiling psmouse.ko module with the patch described in #154. After installing the recompiled module the scrolling works, even if the touchpad is still not recognized in gnome-mouse-properties. I tested it in 10.10 64 bits. For your convenience I report here the list of commands needed to recompile the module: 1) Install kernel headers: sudo apt-get build-dep --no-install-recommends linux-image-$(uname -r) apt-get source linux-image-$(uname -r) this creates a "linux-[your-version]" directory into your home install git: sudo apt-get install git change into it: cd src/drivers/input/mouse and backup alps.c, alps.h, psmouse.h apply patch (take the patch from entry #154 above): patch -p0 < 2.6.35-alps-730264-imps-emulation.patch make & install: make -C /lib/modules/`uname -r`/build M=`pwd` psmouse.ko sudo rmmod psmouse sudo cp psmouse.ko /lib/modules/`uname -r`/kernel/drivers/input/mouse/ sudo modprobe psmouse -- [Karmic] Touchpad not recognised correctly, synaptics driver not in use https://bugs.launchpad.net/bugs/380126 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp