I can confirm that the patch in comment 28 (Use WaRsDisableCoarsePowerGating) solved the issue on my Intel NUC6i5 with only a moderate increase in power consumption.
With an idle desktop using kernel 4.6.0-rc3, the system consumes: 7 Watts without patch, RC6 enabled, frequent crashes 17 Watts with i915.enable_rc6=0, no crashes 9 Watts with patch, no crashes -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1564759 Title: [i915_bpo] Fix RC6 on SKL GT3 & GT4 To manage notifications about this bug go to: https://bugs.launchpad.net/dri/+bug/1564759/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
