I know I did not perform this step from the link you provided: https://hashcat.net/wiki/doku.php?id=linux_server_howto
However, from reading I was under the impression that step was only for AMD cards. Maybe I'll try that step on my rig and see if that helps.
Code:
aptitude install build-essential dkms xserver-xorg xserver-xorg-core \
xserver-xorg-input-evdev xserver-xorg-video-dummy x11-xserver-utils fglrx xdm
However, from reading I was under the impression that step was only for AMD cards. Maybe I'll try that step on my rig and see if that helps.