Key repeating doesn't work in 17.10

There seems to be something wrong with peaq_wmi module. You can try to blacklist it (worked in Kubuntu 17.10):

sudo su
echo "blacklist peaq_wmi" >> /etc/modprobe.d/50-blacklist.conf

Reboot your machine and everything should be ok. Hope this helps.

Found it here: https://forums.opensuse.org/showthread.php/527307-Keyboard-repeat-problem