I did an online update so I don't know how it works out of the box.
The kernel seems to be critical here; I currently use 2.4.21 + ACPI patch. The original version (2.4.19) didn't work very well (CPU fan support nonfunctional).
I configured the kernel "by hand" so this system is probably rather different to SuSE's out of the box-kernel.
I've installed the "synaptics" driver for the touchpad, works great.
Since I'm not sure how much I really upgraded/configured: xf86 4.2.0, KDE 3.1.1, VESA-Framebuffer (cat /proc/fb)
Did you start X with debug on? Are there any usable error messages in the log file (/var/log/XFree86.0.log)?