This looks morea driver issue than fprintd itself... Or well, libfprint
issue.
What sensors are you using?
** Also affects: libfprint (Ubuntu)
Importance: Undecided
Status: New
** Changed in: libfprint (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1619329
Title:
fingerprint device takes 80% of system power when idle
Status in fprintd package in Ubuntu:
Confirmed
Status in libfprint package in Ubuntu:
Incomplete
Bug description:
My laptop is devoting nearly 4 Watts out of a total of 5-6 Watts idle
power to the USB device that is my fingerprint reader on a T450s
Thinkpad, when the fingerprint reader is not lit up and not being
polled for any good reason.
It should be using zero power under these conditions.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: fprintd 0.6.0-1
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Sep 1 10:20:18 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-02-12 (201 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: fprintd
UpgradeStatus: Upgraded to xenial on 2016-05-24 (99 days ago)
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