[Bug 1686448] Re: Unable to reach higher than package C2 state with Skylake processor
I remember I read that article two days after the notebook had arrived. Its Linux support was really poor, even with it having Satux Linux (a really bad distribution). It had much more problems which quickly were corrected, but this one is one of the most persistent issues (tied with the wireless problem we're nearly solving). >From what I researched back then ( >https://access.redhat.com/documentation/pt-br/red_hat_enterprise_linux/6/html/power_management_guide/alpm > ), these SATA LPM options are changed by the following commands on this >notebook: echo 'min_power' > '/sys/class/scsi_host/host0/link_power_management_policy' echo 'min_power' > '/sys/class/scsi_host/host1/link_power_management_policy' And they work. As the powertop proposed changes were effective back then to enable Package C3 and now Package C8, I've done a systemd service to enable them on boot. Only USB ports and the PCI Audio device aren't with its powersave modes, as setting them to save more power make problems start to appear. ** Attachment added: "econoenerg.service" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+attachment/5091424/+files/econoenerg.service -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686448 Title: Unable to reach higher than package C2 state with Skylake processor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1686448] Re: Unable to reach higher than package C2 state with Skylake processor
This articles says that enabling SATA LPM [1] can reach deeper then C3. But since your laptop already reaches C8, I guess it won't help. https://mjg59.dreamwidth.org/41713.html?thread=1748721 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686448 Title: Unable to reach higher than package C2 state with Skylake processor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1686448] Re: Unable to reach higher than package C2 state with Skylake processor
r8168-dkms have not made it hit a higher package C state. On page 70 of the document I posted the link on comment 7, it shows the maximum package C state the Skylake U/Y would be able to reach, depending of screen resolution. As this notebook has a 1366x768 screen, I suppose that it would reach up to Package C8 without PSR (Panel Self-Refresh) disabled, but I have it enabled: [0.00] Command line: BOOT_IMAGE=/boot/vmlinuz-4.16.0-041600rc6-generic root=UUID=6b4ae5c0-c78c-49a6-a1ba-029192618a7a ro i915.enable_psr=1 [0.00] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.16.0-041600rc6-generic root=UUID=6b4ae5c0-c78c-49a6-a1ba-029192618a7a ro i915.enable_psr=1 [1.450734] Setting dangerous option enable_psr - tainting kernel It may be on the maximum power save state already this particular notebook model can have. The remaining thing to test would be the powertop proposed changes. Today is the first time I've seen that the notebook is using less than 5 W of power while in use. If its battery was as when it was new, I would be able to get more than 6 hours of battery. ** Attachment added: "powertop_416rc6.html" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+attachment/5090792/+files/powertop_416rc6.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686448 Title: Unable to reach higher than package C2 state with Skylake processor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1686448] Re: Unable to reach higher than package C2 state with Skylake processor
Try using r8168-dkms instead of r8169. Some platforms require features in r8168-dkms to hit deeper CPU package state. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686448 Title: Unable to reach higher than package C2 state with Skylake processor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1686448] Re: Unable to reach higher than package C2 state with Skylake processor
The behavior has greatly improved using the kernel 4.16.0-rc6, the package is reaching the state C8. It's still not C10, but it is pretty close. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686448 Title: Unable to reach higher than package C2 state with Skylake processor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1686448] Re: Unable to reach higher than package C2 state with Skylake processor
** Tags added: kernel-bug-exists-upstream ** 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/1686448 Title: Unable to reach higher than package C2 state with Skylake processor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1686448] Re: Unable to reach higher than package C2 state with Skylake processor
With this notebook, I am using Xubuntu 16.04 since I bought it. Since the start battery lasted less time than on Windows 10, but I didn't know why this was happening. The kernel at December 2016 was way more problematic, but nearly all the problems were solved, but this one, which reduces battery time, is still present. I have tested the upstream kernel, and there are improvements: the package is reaching C3. While it is only one stage above, this single stage means 0,4 W of less consumption. When speaking about a system that uses 7 W, this 0,4 W means more than 5% of economy. It is still not perfect, as http://www.intel.com/content/www/us/en/processors/core/6th-gen-core- family-mobile-u-y-processor-lines-datasheet-vol-1.html states, package can reach C10, so there is still something to do. However, when installing the upstream kernel, there were warning messages: update-initramfs: Generating /boot/initrd.img-4.11.0-041100rc8-generic W: Possible missing firmware /lib/firmware/i915/kbl_dmc_ver1_01.bin for module i915 W: Possible missing firmware /lib/firmware/i915/kbl_guc_ver9_14.bin for module i915 W: Possible missing firmware /lib/firmware/i915/bxt_guc_ver8_7.bin for module i915 W: Possible missing firmware /lib/firmware/i915/kbl_huc_ver02_00_1810.bin for module i915 W: Possible missing firmware /lib/firmware/i915/bxt_huc_ver01_07_1398.bin for module i915 W: Possible missing firmware /lib/firmware/i915/skl_huc_ver01_07_1398.bin for module i915 I don't mind with bxt* and kbl*, as they are other generations processors, but there is one Skylake message, so I believe different problems can happen, and as they are related i915, I suppose it's graphics. So, while there is a improvement, it is still saving energy as it could, so I believe the bug still exists. ** Attachment added: "turbostat411rc8" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+attachment/4868333/+files/turbostat411rc8 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686448 Title: Unable to reach higher than package C2 state with Skylake processor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1686448] Re: Unable to reach higher than package C2 state with Skylake processor
** Attachment added: "powertop411rc8.html" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+attachment/4868334/+files/powertop411rc8.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686448 Title: Unable to reach higher than package C2 state with Skylake processor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1686448] Re: Unable to reach higher than package C2 state with Skylake processor
Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem? Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.11 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc8 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686448 Title: Unable to reach higher than package C2 state with Skylake processor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1686448] Re: Unable to reach higher than package C2 state with Skylake processor
** Attachment added: "sudo turbostat --debug --out turbostat" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+attachment/4868280/+files/turbostat -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686448 Title: Unable to reach higher than package C2 state with Skylake processor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1686448] Re: Unable to reach higher than package C2 state with Skylake processor
Here is the powertop output. Tuning additional options to "Good" from this point start to cause problems, as crackling sound and nonfunctional mouse. ** Attachment added: "powertop.html" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+attachment/4868281/+files/powertop.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686448 Title: Unable to reach higher than package C2 state with Skylake processor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1686448] Re: Unable to reach higher than package C2 state with Skylake processor
** Attachment added: "Guidelines" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+attachment/4868278/+files/version.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686448 Title: Unable to reach higher than package C2 state with Skylake processor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
