Could someone check with "i915.i915_enable_rc6=1" in /etc/default/grub? This option lowers power consumption by 4watts on my Tp X1 but I did not check against Unity 2D.
Nevertheless, the option might result in screen glitches (see http://www.phoronix.com/scan.php?page=article&item=intel_i915_power&num=1). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/887260 Title: compiz+unity3d draws 3W more power than metacity+unity2d when idle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-consumption/+bug/887260/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs