Comment 9 for bug 1419563

Ok I was able to finally resolve this in Linux Mint 17.2

Not sure exactly what change fixed this but I did as follows (after swoogan's automatic installer failed)

Created a file /etc/modprobe.d/usbhid.conf

in which the only line I put in was: options usbhid quirks=0x0c45:0x7603:0x0007

Created a file in /etc/default/grub.d/ named aziokbd.conf

Contained the line: options usbhid quirks=0x0c45:0x7603:0x0007

Copied this file to the etc/default directory

Copied it to etc/grub.d directory as well

(Not sure of the last two items helped or not, but I did it just in case)

Finally added :

GRUB_CMDLINE_LINUX_DEFAULT='usbhid.quirks=0x0c45:0x7603:0x7'

Directly to the Grub conf file located at: etc/default/grub.cfg

*I believe it mentioned this in his instructions, but I was thrown off by the missing .cfg after grub. I assumed it was a folder etc/default/grub

Ran sudo update-grub and restarted. Now my perixx 1800 keyboard works.

Hope this helps someone.