$ cat /sys/power/mem_sleep s2idle [deep] ---
For testing /sys/power/pm_async set to 0, I did: $ cat /sys/class/power_supply/BAT1/energy_now 8380000 $ cat /sys/class/power_supply/BAT0/energy_now 20460000 $ date Sa 18. Jul 13:21:18 CEST 2020 $ echo 0 | sudo tee /sys/power/pm_async 0 $ # suspended here $ date Sa 18. Jul 16:07:03 CEST 2020 $ cat /sys/class/power_supply/BAT0/energy_now 20460000 $ cat /sys/class/power_supply/BAT1/energy_now 6730000 so it still drains 1,25% of the total battery capacity per hour, just as with pm_async set to 1. Also, /var/log/syslog looks just as described in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1825636: ``` systemd[1]: Reached target Sleep. systemd[1]: Starting Suspend... systemd-sleep[179378]: Suspending system... kernel: [107977.533865] PM: suspend entry (deep) // suspended here (in this test for about 40 minutes) kernel: [107977.556748] Filesystems sync: 0.022 seconds kernel: [107977.558222] Freezing user space processes ... (elapsed 0.003 seconds) done. kernel: [107977.561528] OOM killer disabled. kernel: [107977.561529] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. kernel: [107977.563110] printk: Suspending console(s) (use no_console_suspend to debug) kernel: [107977.600338] wlp4s0: deauthenticating from 24:65:11:8e:43:e5 by local choice (Reason: 3=DEAUTH_LEAVING) kernel: [107977.839517] sd 1:0:0:0: [sda] Synchronizing SCSI cache kernel: [107977.842556] sd 1:0:0:0: [sda] Stopping disk kernel: [107978.011721] e1000e: EEE TX LPI TIMER: 00000011 kernel: [107979.463353] ACPI: EC: interrupt blocked kernel: [107979.464153] ACPI: Preparing to enter system sleep state S3 kernel: [107979.470324] ACPI: EC: event blocked kernel: [107979.470326] ACPI: EC: EC stopped kernel: [107979.470327] PM: Saving platform NVS memory kernel: [107979.470333] Disabling non-boot CPUs ... kernel: [107979.471057] IRQ 128: no longer affine to CPU1 kernel: [107979.472083] smpboot: CPU 1 is now offline kernel: [107979.476463] smpboot: CPU 2 is now offline kernel: [107979.480230] IRQ 16: no longer affine to CPU3 kernel: [107979.480244] IRQ 130: no longer affine to CPU3 kernel: [107979.481273] smpboot: CPU 3 is now offline kernel: [107979.486687] ACPI: Low-level resume complete kernel: [107979.486918] ACPI: EC: EC started kernel: [107979.486921] PM: Restoring platform NVS memory kernel: [107979.497888] Enabling non-boot CPUs ... kernel: [107979.498062] x86: Booting SMP configuration: kernel: [107979.498067] smpboot: Booting Node 0 Processor 1 APIC 0x2 kernel: [107979.510701] CPU1 is up kernel: [107979.510831] smpboot: Booting Node 0 Processor 2 APIC 0x1 kernel: [107979.514667] CPU2 is up kernel: [107979.514807] smpboot: Booting Node 0 Processor 3 APIC 0x3 kernel: [107979.518519] CPU3 is up kernel: [107979.525254] ACPI: Waking up from system sleep state S3 kernel: [107979.554696] ACPI: EC: interrupt unblocked kernel: [107979.775701] ACPI: EC: event unblocked kernel: [107980.356933] sd 1:0:0:0: [sda] Starting disk ``` -- 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/1886920 Title: Battery drain during sleep. System suspended before kernel suspends all tasks. Lenovo ThinkPad T460 Status in linux package in Ubuntu: Confirmed Bug description: The same as https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1825636. kaihengfeng closed that one "Because there's no response from the original bug reporter." and asked to file a report for all devices affected, so here I am, duplicating the report. On Ubuntu MATE 18.04, as well as after the update to 20.04, the battery drains about 2% per hour of sleep (if I just close the lid). $ cat /sys/power/mem_sleep s2idle [deep] tlp was initially installed on my machine. However, this behaviour also occurs if I $ sudo apt purge tlp acpi-call-dkms && sudo reboot now also, it occurs when booting from a freshly made MATE 20.04 live usb stick, so TLP shouldn't be the culprit. All the log files look in all relevant aspects similar to what was reported in the old report. I'm happy to provide log files from my machine, if any are necessary. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: richard 1511 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: MATE DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2018-07-12 (735 days ago) InstallationMedia: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 04f2:b52c Chicony Electronics Co., Ltd Integrated Camera Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Lsusb-t: /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M |__ Port 10: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M |__ Port 10: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M MachineType: LENOVO 20FMS03600 Package: linux (not installed) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-40-generic root=/dev/mapper/ubuntu--mate--vg-root ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44 RelatedPackageVersions: linux-restricted-modules-5.4.0-40-generic N/A linux-backports-modules-5.4.0-40-generic N/A linux-firmware 1.187.1 Tags: focal Uname: Linux 5.4.0-40-generic x86_64 UpgradeStatus: Upgraded to focal on 2020-05-22 (55 days ago) UserGroups: adm cdrom dialout dip docker lpadmin plugdev sambashare sudo tty uucp _MarkForUpload: True dmi.bios.date: 09/21/2018 dmi.bios.vendor: LENOVO dmi.bios.version: R06ET64W (1.38 ) dmi.board.asset.tag: Not Available dmi.board.name: 20FMS03600 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrR06ET64W(1.38):bd09/21/2018:svnLENOVO:pn20FMS03600:pvrThinkPadT460:rvnLENOVO:rn20FMS03600:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad T460 dmi.product.name: 20FMS03600 dmi.product.sku: LENOVO_MT_20FM_BU_Think_FM_ThinkPad T460 dmi.product.version: ThinkPad T460 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886920/+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
