I've collected some more data and it seems to suggest that maybe suspend/sleep has something to do with this?
========= Test 1: 1. Boot (and wait a few seconds after signing in). 2. Suspend/Sleep (using the "sleep" button from Manjaro/KDE's GUI). 3. Wait 20 seconds. 4. Wake from sleep. 5. Wait 20 seconds again. 6. Poweroff (and not the time and percentage just before doing so). 7. Wait a few more seconds before closing the lid. Result: 12% drain (100% -> 88%) in exactly 2 hours powered off. Note: All of the data points from my previous comment were done with Sleep/Suspend being one of the steps of my test workflow. In this new version of the test, I test for a shorter period of time and have not opened any applications during the test workflow. ========= Test 2: 1. Boot (and wait a few seconds after signing in). 2. Open some applications and use them a bit (Firefox, VS Code, Yakuake, FZF) - about 1 or 2 minutes. 3. Close all applications. 4. Poweroff (and not the time and percentage just before doing so). This time I forgot to wait a few seconds after powering off before closing the lid (but I *did* at least wait till all the lights turned off) Results: 2% drain (88% -> 86%) in exactly 6 hours powered off. 1% drain (32% -> 31%) in exactly 9 hours powered off. Results when I don't open any applications: 1% drain (44% -> 43%) in exactly 2 hours powered off (run 1). So it seems like opening applications doesn't have anything to do with this (as expected). ========= Test 3: (no formally described steps this time) Results when I force powered off from my bootloader menu (currently, that's rEFInd): 1% drain (47% -> 46%) in exactly 2 hours powered off. Results when I shutdown from my BIOS/UEFI menu (interrupt the boot process and go straight to the UEFI menu): 0% drain (100% -> 100%) in exactly 6 hours and 20 minutes powered off. ========= Conclusion: I'm pretty sure that there's no BIOS v/s Bootloader issue here and that the difference in the rate of battery drain is negligible. I'm also pretty sure that as long as I don't let my laptop sleep/suspend on Manjaro (running Linux 5.10 or Linux 5.13) it's fine. Could this help in identifying the source of the bug? Could someone else please conduct similar experiments so that we can cross-validate the results? Perhaps someone on Ubuntu or some other operating system that's *not* Manjaro (just so that we can rule out the operating system as a variable in this) Once again, please let me know if I can help by collecting more data/logs/etc. -- 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
