Please find the first -rc kernel in [1] that introduces the issue: [1] http://kernel.ubuntu.com/~kernel-ppa/mainline
-- 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/1767324 Title: Extreme regression in battery autonomy with kernel 4.15 Status in linux package in Ubuntu: Confirmed Bug description: Since upgrading to kernel 4.15, my laptop (HP Elitebook 850 G3) lasts less than one hour on a fully charged battery. On Ubuntu 17.10 with kernel 4.13, the autonomy was typically in excess of 5 hours. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-lowlatency 4.15.0.20.23 ProcVersionSignature: Ubuntu 4.15.0-20.21-lowlatency 4.15.17 Uname: Linux 4.15.0-20-lowlatency x86_64 ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jzimm 3538 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Fri Apr 27 20:10:02 2018 InstallationDate: Installed on 2018-04-03 (24 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180402) MachineType: HP HP EliteBook 850 G3 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/bionic/vmlinuz-4.15.0-20-lowlatency root=UUID=b6480aee-7c63-4ce4-9e8d-cdbef768b982 ro rootflags=subvol=@,relatime,autodefrag,space_cache quiet splash module.sig_enforce=1 intel_pstate=skylake_hwp radeon.si_support=0 radeon.cik_support=0 amdgpu.si_support=1 amdgpu.cik_support=1 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-lowlatency N/A linux-backports-modules-4.15.0-20-lowlatency N/A linux-firmware 1.173 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/31/2016 dmi.bios.vendor: HP dmi.bios.version: N75 Ver. 01.10 dmi.board.name: 8079 dmi.board.vendor: HP dmi.board.version: KBC Version 85.6F dmi.chassis.asset.tag: 5CG6351LQL dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrN75Ver.01.10:bd07/31/2016:svnHP:pnHPEliteBook850G3:pvr:rvnHP:rn8079:rvrKBCVersion85.6F:cvnHP:ct10:cvr: dmi.product.family: 103C_5336AN G=N L=BUS B=HP S=ELI dmi.product.name: HP EliteBook 850 G3 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1767324/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
