2

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!

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.