activated the xorg-edgers PPA, and found that with KMS disabled, xorg segfaults and will not operate at all, and I could not even use any console terminals. Fortunately I had installed sshd so I could ssh in via the network and remove /etc/modprobe.d/radeon-kms.conf
activated the xorg-edgers PPA, and found that with KMS disabled, xorg segfaults and will not operate at all, and I could not even use any console terminals. Fortunately I had installed sshd so I could ssh in via the network and remove /etc/modprobe. d/radeon- kms.conf