Support for hybrid graphics arrived in the 3.5 kernel, when used with xserver 1.13. Runtime power management support has finally been enabled on ATI/AMD Radeon graphics hardware in the upstream 3.13 kernel - it has support for dynamically powering down discrete GPUs on PowerXpress systems - see http://lists.freedesktop.org/archives/dri- devel/2013-November/048316.html and http://lists.freedesktop.org/archives/dri- devel/2013-September/045650.html for details.
Ubuntu 14.04 "Trusty Tahr" now has the 3.13.0-1.16 kernel. Can you please test this version and let us know the results? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1173393 Title: Both my IGD Intel 4000HD and discrete ATi Radeon are powered on by default To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1173393/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
