I was wrong, D0 is the correct state for the device, which doesn't have
PM capability.
Can you please install powertop and see the Package C-State count after S3?
In addition to that, would it be possible to see how Windows behaves?
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I just had the opportunity to measure a longer sleep with the rc1+
kernel. The battery drain is still as high as before.
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Title:
Alright, here is the dmesg output for the rc1+ kernel. It still says
power state D0 instead of D3 (Hope I didn't mess up anything this time):
[ 65.241409] i801_smbus :00:1f.4: PCI PM: Suspend power state: D0
I did a quick test (about 30 minutes) on battery consumption yesterday,
which also
Never mind, booted the wrong kernel (5.4.0). Will measure again.
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Title:
Battery drain during sleep. System suspended before kernel
1.28% battery drain per hour.
dmesg still says:
[ 5622.828022] i801_smbus :00:1f.4: PCI PM: Suspend power state: D0
** Attachment added: "5.9.0_rc1+_1_dmesg.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886920/+attachment/5406429/+files/5.9.0_rc1+_1_dmesg.txt
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Please test this kernel:
https://people.canonical.com/~khfeng/lp1886920/
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Title:
Battery drain during sleep. System suspended
output file of
$ sudo acpidump -o acpidump.txt
attached.
** Attachment added: "acpidump.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886920/+attachment/5403829/+files/acpidump.txt
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Note to myself to I don't need to re-read the source again: basically
acpi_pm_device_sleep_state() finds the i801 controller's power state for
S3 is D0. It should be D3 instead.
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[ 104.894933] i801_smbus :00:1f.4: PCI PM: Suspend power state: D0
Can you please attach acpidump?
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Title:
Battery drain
Since some time passed, I took the freedom to use the up-to-date
mainline kernel as of today (5.9-rc1) instead of 5.8-rc7
xhci_hcd printing "//Ding dong!" had me smiling.
** Attachment added: "dmesg.log"
Nothing suspicious, really. And the system seems to be too old to
support pmc_core, so we can't check the SoC state easily.
Please install latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.8-rc7/
Then boot with kernel parameter "dyndbg='file drivers/pci/* +p; file
I commented out the three lines in /etc/rc.local and did the following:
$ echo "blacklist btusb" | sudo tee /etc/modprobe.d/blacklist-btusb.conf
$ sudo update-initramfs -u
$ sudo reboot now
output of dmesg does not contain "Bluetooth" (case sensitive) anymore
and `lsmod | grep bt` gives no
[ 33.395006] Bluetooth: hci0: command 0x0c03 tx timeout
[ 34.316133] usb 1-7: USB disconnect, device number 2
[ 34.316302] Bluetooth: hci0: HCI reset during shutdown failed
Can you please try blacklisting "btusb" instead of the custom script?
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It is not possible to disable the Intel ME from the BIOS set up.
I attached the result of running
$ dmesg > dmesg.log
after booting
I rarely use bluetooth, so I keep it disabled. To automatically disable it
after boot, I use rfkill in the rc.local file:
```
$ cat /etc/rc.local
#!/bin/bash
Can you attach dmesg right after boot?
Apparently the USB Bluetooth isn't working right.
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Title:
Battery drain during sleep.
Is it possible to disable Management Engine from BIOS?
AFAIK Linux ME driver is fallible during system suspend.
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Title:
Battery
** Description changed:
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.
$ 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
838
$ cat /sys/class/power_supply/BAT0/energy_now
2046
$ date
Sa 18. Jul 13:21:18 CEST 2020
$ echo 0 | sudo tee /sys/power/pm_async
0
$ #
Please also run the following before sleep and see if it helps:
# echo 0 > /sys/power/pm_async
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Title:
Battery drain during sleep.
Does /sys/power/mem_sleep default to s2idle?
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Title:
Battery drain during sleep. System suspended before kernel suspends
all
apport information
** Tags added: apport-collected focal
** Description changed:
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
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