I had this problem in Xubuntu 6.06 LTS (XFCE) on an old AMD K6-2/500 with SiS 530/5595 chipset. Very difficult to login at the login window.
XFCE > Settings > Keyboard Settings > Settings > Typing Settings did not help - if anything worse. The xkbset solution had no effect. I didn't try the accessx solution, but I found a simple solution that does work:- Add the kernel parameter 'clock=tsc' in GRUB (ie: to the 'kernel' line of the top kernel entry in /boot/grub/menu.lst). -- Keyboard random repeat and dropped key presses https://launchpad.net/bugs/39315 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs