Patch from Debian bug #785150 fixed this for me in fglrx-core 15.200, I think it would apply here also.
https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1456445/comments/3 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=785150 ** Bug watch added: Debian Bug tracker #785150 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=785150 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to fglrx-installer in Ubuntu. https://bugs.launchpad.net/bugs/1426585 Title: fglrx-core 2:14.201-0ubuntu2: fglrx-core kernel module failed to build [error: implicit declaration of function ‘read_cr4’] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1426585/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp