I ran one more test (twice) since my last comment. Following the resolution of a StackExchange answer I found [1], I can confirm that when I run Manjaro on Linux 4.14.248-1, even with sleep/suspend, I don't face any heavy overnight battery drain.
========== Test 4: 1. Boot (and wait a few seconds after signing in). 2. Open some applications and use them a bit (firefox, yakuake, konsole, nvim, node) - about 1 minute. 3. Close all applications. 4. Close the lid of my laptop to trigger sleep/suspend (I'm sure that closing the lid does indeed cause the OS to sleep - confirmed by double checking the corresponding setting from the system settings UI as well as from the journalctl logs). 5. Wait for around 10-20 seconds. 6. Open lid and sign back in. 7. Wait 10 seconds. 8. shutdown and wait for 5 seconds after all of the lights have gone out before closing the lid. Results: - 2% drain (58% -> 56%) in exactly 4 hours powered off. - 2% drain (100% -> 98%) in exactly 17 hours and 33 minutes powered off (yes, that's 17 (seventeen) hours - not a typo). Conclusion: - We now have a "last stable" version and a "known broken" version, it's possible for one to begin bisecting the kernel version that introduced this issue. - I understand that this bug report is for Linux/Ubuntu, but seeing as to how it's now clear that this is due to the Linux Kernel itself and not the distro, my data should still provide some degree of value here despite it being collected on a Linux/Manjaro. ========== [1] https://unix.stackexchange.com/questions/409774/manjaro-on-hp- laptop-battery-drain-while-powered-off -- 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/1912935 Title: battery drain while notebook off / shutdown Status in linux package in Ubuntu: Confirmed Bug description: Hello, my battery drains around 15 to 20 percent a day when shutdown on linux ubuntu. It is an HP notebook HP 15s-eq0355ng , Ryzen 5 3500U , Vega8 . Tested: - with ubuntu 20.04 - Kernel 5.4, 5.8 (hwe) and the current mainline kernel 5.11 (rc4) - no usb devices are plugged in - no wake ob lan available - no USB power when off (checked with optical mouse) - no visible LEDs are on when shutdown I reinstalled window 10, when shutdown from windows there is no (visible) battery drain (or significantly lower). Linux is unusable on this device, if the battery drains in a short time to 0% percent. This cause battery damage ... --- Tested TLP with default settings and activated DEVICES_TO_DISABLE_ON_SHUTDOWN (bluetooth wifi wwan), same power consumption after shutdown. Same power consumption on 20.10 (Groovy Gorilla). --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: test 953 F.... pulseaudio /dev/snd/controlC0: test 953 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: XFCE DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2021-01-24 (0 days ago) InstallationMedia: Xubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) MachineType: HP HP Laptop 15s-eq0xxx Package: linux (not installed) ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-64-generic root=UUID=17ad50f6-ec98-46b2-8c2e-c169f9baace8 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.4.0-64.72-generic 5.4.78 RelatedPackageVersions: linux-restricted-modules-5.4.0-64-generic N/A linux-backports-modules-5.4.0-64-generic N/A linux-firmware 1.187.8 Tags: focal Uname: Linux 5.4.0-64-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 11/18/2020 dmi.bios.vendor: AMI dmi.bios.version: F.30 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 86FD dmi.board.vendor: HP dmi.board.version: 99.40 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAMI:bvrF.30:bd11/18/2020:svnHP:pnHPLaptop15s-eq0xxx:pvr:rvnHP:rn86FD:rvr99.40:cvnHP:ct10:cvrChassisVersion: dmi.product.family: 103C_5335KV HP Notebook dmi.product.name: HP Laptop 15s-eq0xxx dmi.product.sku: 20T63EA#ABD dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1912935/+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