I've recently bought Xiaomi gaming laptop and installed Ubuntu 16.04 on it. After using it for some time I noticed that my laptop dies after 2-3 hours of using. I installed powertop and tlp so almost every thing in powertop's tunables tab is "good". Yet the discharge rate is still pretty high (14-17 watts while simply browsing or idle). I have my nvidia driver installed but have intel "GPU" selected in order to save power.
Laptop specs: GeForce 1060, i7-8750
Powertop output:
The battery reports a discharge rate of 16.6 W
The estimated remaining time is 2 hours, 56 minutes
Summary: 1304,5 wakeups/second, 0,0 GPU ops/seconds, 0,0 VFS ops/sec and 23,3% CPU use
Power est. Usage Events/s Category Description
21.5 W 0,0 pkts/s Device Network interface: enp7s0 (r8169)
2.73 W 100,0% Device USB device: ITE Device(8910) (ITE Tech. Inc.)
45.1 mW 75,6 ms/s 236,3 Process /opt/google/chrome/chrome --type=renderer --field-trial-handle=11984423123929607261,6370143250280949661,131072 --service-pipe-t
37.3 mW 35,7 ms/s 337,4 Process /opt/google/chrome/chrome
It's clear that somehow enp7s0 consumes 21w which is something that I don't understand