Public bug reported:
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.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1886920
Title:
Battery drain during sleep. System suspended before kernel suspends
all tasks. Lenovo ThinkPad T460
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