Hi Everyone, I see some of you have found the RC6 tunables test kernel I built. As a follow on to that I've been in touch with upstream and have pulled in a proposed patch which disables RC6p (deep RC6) for Sandy Bridge. Upstream claims that RC6p is what was responsible for the reports of hangs/graphics corruption issues when RC6 was enabled. I've then added a follow on patch to then enable plain RC6 by default for Sandy Bridge users. Both of these patches are available in the latest 3.2.0-17.26 kernel.
In order to help justify keeping these patches applied and providing Sandy Bridge users improved power savings by default (ie users will no longer need to pass in i915.i915_enable_rc6=1), I'd really appreciate if you could all review my call for testing which I posted to both the Ubuntu kernel-team and ubuntu-devel mailing lists: https://lists.ubuntu.com/archives/kernel-team/2012-February/019029.html If you could please test and provide your feedback on the PowerManagementRC6 wiki, I would greatly appreciate it. https://wiki.ubuntu.com/Kernel/PowerManagementRC6 Thanks in advance. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/818830 Title: [Sandy Bridge] serious power regression from kernel 3.0.0-6 to 3.0.0-7 (rc6 disabled) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/818830/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
