On Mon, Apr 16, 2018 at 5:31 PM, Joseph Salisbury <joseph.salisb...@canonical.com> wrote: > On 04/13/2018 05:34 PM, Rafael J. Wysocki wrote: >> On Fri, Apr 13, 2018 at 7:56 PM, Joseph Salisbury >> <joseph.salisb...@canonical.com> wrote: >>> Hi Rafael, >>> >>> A kernel bug report was opened against Ubuntu . After a kernel >>> bisect, it was found that reverting the following two commits resolved >>> this bug: >>> >>> 0ce3fcaff929 ("PCI / PM: Restore PME Enable after config space restoration") >>> 0847684cfc5f("PCI / PM: Simplify device wakeup settings code") >>> >>> This is a regression introduced in v4.13-rc1 and still exists in >>> mainline. The bug causes the battery to drain when the system is >>> powered down and unplugged, which does not happed prior to these two >>> commits. >> What system and what do you mean by "powered down"? How much time >> does it take for the battery to drain now? > By powered down, the bug reporter is saying physically powered off and > unplugged. The system is a HP laptop: > > dmi.chassis.vendor: HP > dmi.product.family: 103C_5335KV HP Notebook > dmi.product.name: HP Notebook > vendor_id : GenuineIntel > cpu family : 6 > > >> >>> The bisect actually pointed to commit de3ef1e, but reverting >>> these two commits fixes the issue. >>> >>> I was hoping to get your feedback, since you are the patch author. Do >>> you think gathering any additional data will help diagnose this issue, >>> or would it be best to submit a revert request? >> First, reverting these is not an option or you will break systems >> relying on them now. 4.13 is three releases back at this point. >> >> Second, your issue appears to be related to the suspend/shutdown path >> whereas commit 0ce3fcaff929 is mostly about resume, so presumably the >> change in pci_enable_wake() causes the problem to happen. Can you try >> to revert this one alone and see if that helps? > A test kernel with commits 0ce3fcaff929 and de3ef1eb1cd0 reverted was > tested. However, the test kernel still exhibited the bug.
So essentially the bisection result cannot be trusted. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1745646 Title: Battery drains when laptop is off (shutdown) Status in Linux: Unknown Status in acpi package in Ubuntu: Confirmed Status in linux package in Ubuntu: In Progress Status in acpi source package in Artful: New Status in linux source package in Artful: In Progress Bug description: I am using hp AY008tx laptop , and many other laptop users (HP) are also facing the same issue . The problem don't occur when i install windows 10 . Now, only ubuntu is installed. i am using latest bios insyde20 rev 5.(latest) WOL disabled and no usb device connected checked my battery . it don't happen when i remove battery and plug it again after shutdown. tried laptop_mode_tools and tpl too ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.13.0-31-generic 4.13.0-31.34~16.04.1 ProcVersionSignature: Ubuntu 4.13.0-31.34~16.04.1-generic 4.13.13 Uname: Linux 4.13.0-31-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 CurrentDesktop: Unity Date: Fri Jan 26 22:50:53 2018 InstallationDate: Installed on 2018-01-25 (1 days ago) InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801) SourcePackage: linux-hwe UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: gopal 2391 F.... pulseaudio DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=0bf03973-049c-480e-9e14-7596bf68d994 InstallationDate: Installed on 2018-01-25 (1 days ago) InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 04f2:b56c Chicony Electronics Co., Ltd Bus 001 Device 002: ID 0a5c:216d Broadcom Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: HP HP Notebook NonfreeKernelModules: wl Package: linux (not installed) ProcEnviron: LANGUAGE=en_IN:en TERM=xterm-256color PATH=(custom, no user) LANG=en_IN SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-31-generic.efi.signed root=UUID=3a4ef59e-130a-4ce0-92d3-2fc42f5c9f59 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.13.0-31.34~16.04.1-generic 4.13.13 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.13.0-31-generic N/A linux-backports-modules-4.13.0-31-generic N/A linux-firmware 1.157.15 Tags: xenial Uname: Linux 4.13.0-31-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 11/01/2017 dmi.bios.vendor: Insyde dmi.bios.version: F.40 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 81EC dmi.board.vendor: HP dmi.board.version: 61.58 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.40:bd11/01/2017:svnHP:pnHPNotebook:pvrType1ProductConfigId:rvnHP:rn81EC:rvr61.58:cvnHP:ct10:cvrChassisVersion: dmi.product.family: 103C_5335KV HP Notebook dmi.product.name: HP Notebook dmi.product.version: Type1ProductConfigId dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1745646/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : email@example.com Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp