I was not able to achieve C7 (pc7) with your old kernel either (I just
tried a few days ago). The new kernel does not achieve C7 (pc7) either.
It gets down to C3 at best
** Attachment added: "dmesg.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1602888/+attachment/5016209/+files/dme
Installing r8168 gets me to C7 package state. Thanks for the help
kaihengfeng, hopefully a more proper solution is on its way!
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https://bugs.launchpad.net/bugs/1602888
Title:
A tentative success story:
Using the patched r8169 driver & powertop tunables set to "GOOD", my CPU
was able to reach the C7 package state. I noticed C7 is only reached
when the laptop is unplugged, otherwise only C3 is reached. I am not
sure if this behavior is expected, but may be leading to the
Minas,
Idle power consumption seems a little higher than Windows 10. After
idling for 5 minutes on a full charge, the laptop reports temperatures <
50 degrees celsius, and a projected battery life of 3 hours and 25
minutes w/screen brightness of about 70%. This seems a little low, but
not unreason
After some more experimentation it is clear that I cannot reach C7 power
states when plugged in (the lowest I reach is C3), even with tunables
set to good. I tried the acpi_osi="!Windows 2015" boot parameter with no
luck.
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