[Bug 1888924] Re: Battery drain during sleep. System suspended before kernel suspends all tasks

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1888924

Title:
Battery drain during sleep. System suspended before kernel suspends
all tasks

Status in linux package in Ubuntu:
Expired

Bug description:
Description: Ubuntu 16.04.6 LTS
Release: 16.04

I think this is similar to: Bug #1825636
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1825636

Machine: Lenovo ThinkPad L390, fresh install

Suspend drains the battery in approx 1 day.

journalctl -b | grep -i "should not be sleeping" returns:
"cache: parent cpu1 should not be sleeping"

for all cpus

This is a real problem, as I rely on suspending frequently!
---
ApportVersion: 2.20.1-0ubuntu2.23
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: alice 2262 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=5cd85b64-9fb7-4363-bb1d-f25cdad960bd
InstallationDate: Installed on 2019-11-22 (245 days ago)
InstallationMedia: Ubuntu 16.04.6 LTS "Xenial Xerus" - Release amd64 (20190227)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 06cb:00a2 Synaptics, Inc.
Bus 001 Device 002: ID 5986:2113 Acer, Inc
Bus 001 Device 004: ID 8087:0aaa Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 20NR001LGE
NonfreeKernelModules: talpa_vfshook talpa_pedconnector talpa_pedevice talpa_vcdevice talpa_core talpa_linux talpa_syscallhook
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-112-generic root=UUID=f94d702f-ca9f-4f9a-a368-8defce0e5531 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.15.0-112.113~16.04.1-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-112-generic N/A
linux-backports-modules-4.15.0-112-generic N/A
linux-firmware 1.157.23
Tags: xenial
Uname: Linux 4.15.0-112-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 08/12/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: R10ET39W (1.24 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20NR001LGE
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrR10ET39W(1.24):bd08/12/2019:svnLENOVO:pn20NR001LGE:pvrThinkPadL390:rvnLENOVO:rn20NR001LGE:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad L390
dmi.product.name: 20NR001LGE
dmi.product.version: ThinkPad L390
dmi.sys.vendor: LENOVO

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