For anyone with AMD/ATI Radeon graphics hardware, kernel 3.11.0-1.4 (based on the upstream 3.11-rc4 kernel) is now available in Ubuntu 13.10 "Saucy Salamander". Also, kernel 3.11.0-2.5 is in Saucy-proposed, which is based on the upstream 3.11-rc5 kernel, which has some bugfixes for the new DPM method.
For anyone with AMD/ATI Radeon graphics hardware, kernel 3.11.0-1.4 (based on the upstream 3.11-rc4 kernel) is now available in Ubuntu 13.10 "Saucy Salamander". Also, kernel 3.11.0-2.5 is in Saucy-proposed, which is based on the upstream 3.11-rc5 kernel, which has some bugfixes for the new DPM method.