[Bug 913886] Re: Power consumption regression (12.04)
*** This bug is a duplicate of bug 818830 *** https://bugs.launchpad.net/bugs/818830 Unfortunately the i915 RC6 patch was dropped with commit 371de6e4e0042adf4f9b54c414154f57414ddd37 because the RC6 fix still seems to make some systems freeze and as yet we've not got a reliable list of hardware that fails with rc6. The current recommended solution is to enable rc6 using i915.i915_enable_rc6=1 for hardware that doesn't lock up. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/913886 Title: Power consumption regression (12.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/913886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 913886] Re: Power consumption regression (12.04)
Sorry, I will not let more than 3MB of data going away from my laptop. Which information exactly is required? ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/913886 Title: Power consumption regression (12.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/913886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 913886] Re: Power consumption regression (12.04)
Thank you for taking the time to file a bug report on this issue. However, given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request. We have noted that there is a newer version of the development kernel than the one you last tested when this issue was found. Please test again with the newer kernel and indicate in the bug if this issue still exists or not. You can update to the latest development kernel by simply running the following commands in a terminal window: sudo apt-get update sudo apt-get upgrade If the bug still exists, change the bug status from Incomplete to Confirmed. If the bug no longer exists, change the bug status from Incomplete to Fix Released. If you want this bot to quit automatically requesting kernel tests, add a tag named: bot-stop-nagging. Thank you for your help, we really do appreciate it. ** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete ** Tags added: kernel-request-3.2.0-8.14 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/913886 Title: Power consumption regression (12.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/913886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 913886] Re: Power consumption regression (12.04)
Thanks. That's the version I use. # cat /proc/version_signature Ubuntu 3.2.0-8.14-generic 3.2.0 It appears adding these options to /etc/default/grub solved the problem (back to 9-10W consumption): GRUB_CMDLINE_LINUX_DEFAULT=quiet pcie_aspm=force acpi=noirq i915.i915_enable_rc6=1 For readers, run `update-grub' after that. I suppose the most important options are pcie_aspm=force acpi=noirq i915.i915_enable_rc6=1. Note: these options were not necessary in version 3.2.0-7 to have a better power management. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/913886 Title: Power consumption regression (12.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/913886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 913886] Re: Power consumption regression (12.04)
** Changed in: linux (Ubuntu) Status: Incomplete = New ** Tags added: regression-release -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/913886 Title: Power consumption regression (12.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/913886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 913886] Re: Power consumption regression (12.04)
@GomoR, please have a look on comment #2 of bug 912572 where it shows the amount of log files attached by apport, their size isn't over 3MB. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/913886 Title: Power consumption regression (12.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/913886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 913886] Re: Power consumption regression (12.04)
@GomoR, forgot to mention, before running apport collect please boot 3.2.0-8, otherwise bug bot will again advise to upgrade first to newer release. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/913886 Title: Power consumption regression (12.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/913886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 913886] Re: Power consumption regression (12.04)
It is more than 3MB. $ apport-collect 913886 [...] *** Send this data to the developers? What would you like to do? Your options are: S: Send report (3.1 MB) [...] Or: $ ls -l /tmp/apport.linux.oeKLJE.apport -rw--- 1 gomor gomor 3120355 Jan 9 21:18 /tmp/apport.linux.oeKLJE.apport But anyway, the problem is fixed by adding some grub options. Thanks. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/913886 Title: Power consumption regression (12.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/913886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 913886] Re: Power consumption regression (12.04)
*** This bug is a duplicate of bug 818830 *** https://bugs.launchpad.net/bugs/818830 One of the patches in 3.2.0-8.14 disables RC6 by default (again). ** This bug has been marked a duplicate of bug 818830 [Sandy Bridge] serious power regression from kernel 3.0.0-6 to 3.0.0-7 (rc6 disabled) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/913886 Title: Power consumption regression (12.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/913886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
