Thats where I'm headed. I think letting eudev take care of adding devices is the correct approach. Just being cautious and some more testing on different machines would be good. I have removed it and the core 2 duo seems fine. Your desktop? seems fine. I'll test it on my Pentium M laptops today and look at the Xorg logs and I assume smil99 will try it on his gateway. If all is ok, remove it and enable the "AutoAddDevices".
Edit: Seems just fine on the Pentium M laptops with ALPS touchpads. To make touchpad options changes persist, either flsynclient could be used (don't see it with pacman, maybe in AUR?) or options can be added to /etc/X11/xorg.d/50-synaptics.conf following line 13.
I have disabled tapping and added HorizEdgeScroll for these laptops there and they persist through X restart and reboot.
So far so good for removal of /usr/share/X11/xorg.conf.d/50-synaptics.conf on this end. I may try a pristine frugal on my ancient Athlon box in the cellar for laughs.
Posting from (and listening to Simple Radio) on the cellar box. About as far from the laptops as I can get! Athlon XP/MP 1.6GHx overclocked, Via 8237 audio, Via VT6102 ethernet (Rhine ii), Nvidia NV5 Riva TNT2 M64 Pro video driving a 1024x768 LCD, usb mouse, and a mighty 512 Mb RAM. Frugal Grub4Dos (In pupstate 13 yet!) install to an ancient 20Gb HDD. Used the savefile from the laptops upstairs which has all my panel and spacefm config and expected zip. And it booted, recognized all the hardware, has my full panel and spacefm plugins, and seems to have no trouble at all with the proposed conf file changes above.
One tough pup
The attached flsynclient runs in alphaOS 11. For manual install to /usr/bin. Put
in /root/.start.sh to load the saved touchpad settings at boot or X restart. File /root/.flsynclient contains the settings. Best to keep the default edge settings if possible.