I have an xps 9570 running 18.04 Jackhack96 version. I have recently realized that my battery life was getting worse. Opening powertop I saw the following
Summary: 2274,6 wakeups/second, 0,0 GPU ops/seconds, 0,0 VFS ops/sec and 55,4% CPU use
Power est. Usage Events/s Category Description
7.40 W 15,2% Device Display backlight
6.93 W 100,0% Device USB device: Goodix Fingerprint Device (HTMicroelectronics)
4.05 W 214,4 ms/s 315,5 Process [PID 4302] /opt/google/chrome/chrome --type=renderer --field-trial-handle=10183710076499817192,527516098290
2.34 W 66,6 pkts/s Device Network interface: wlp59s0 (iwlwifi)
1.13 W 61,8 ms/s 71,6 Process [PID 6379] /opt/google/chrome/chrome --type=renderer --field-trial-handle=10183710076499817192,527516098290
962 mW 5,3 ms/s 443,7 Timer tick_sched_timer
956 mW 46,1 ms/s 92,4 Process [PID 2281] /usr/bin/gnome-shell
703 mW 24,7 ms/s 137,8 Process [PID 3808] /opt/google/chrome/chrome
638 mW 38,9 ms/s 9,6 kWork intel_atomic_commit_work
585 mW 23,2 ms/s 89,8 Process [PID 2131] /usr/lib/xorg/Xorg vt2 -displayfd 3 -auth /run/user/1000/gdm/Xauthority -background none -norese
The interesting part is that seemingly the fingerprint sensor (which doesn't have compatible drivers with Ubuntu afaik) is drawing a fair amount of power. Is there a way to disable it completely? Running lsusb I get the following:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 27c6:5395
Bus 001 Device 002: ID 8087:0025 Intel Corp.
Bus 001 Device 004: ID 0c45:671d Microdia
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Thank you!
