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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Martin Pecka, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:
apport-collect 1547884

** Package changed: linux-lts-wily (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1547884

Title:
  Broadcom Corp. BCM5880 Secure Applications Processor eats too much
  power

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  $ lsusb
  Bus 004 Device 004: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications Processor

  $ sudo powertop
  Power est.              Usage       Events/s    Kategorie       Popis
    24.3 W    100,0%                      Device         USB device: 5880 (Broadcom Corp)

  On my Dell Latitude E6540 I constantly see this USB device eating
  about 20 W of power (and I don't see a reason for this kind of device
  to take that much power). And yes, the fan is always running, even
  when the computer is completely idle.

  The computer has no fingerprint reader (though it was an optional
  accessory, so the chip is IMHO built to support it). I use the
  integrated smartcard reader (also handled by this chip). I've set up
  PAM and LightDM to support smartcard login. However, the power usage
  is the same regardless of whether a smartcard is inserted or not. I do
  not intentionally use the integrated TPM chip in any way.

  I faced this problem also on Ubuntu 14.04.3 with 3.19 kernel.

  Eventually, this could also be a bug in powertop, but the fan almost
  never stops (even with display backlight to minimum), so I think
  powertop could be correct.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-4.2.0-27-generic 4.2.0-27.32~14.04.1
  ProcVersionSignature: Ubuntu 4.2.0-27.32~14.04.1-generic 4.2.8-ckt1
  Uname: Linux 4.2.0-27-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sat Feb 20 15:33:49 2016
  InstallationDate: Installed on 2013-11-05 (837 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  SourcePackage: linux-lts-wily
  UpgradeStatus: Upgraded to trusty on 2014-04-12 (678 days ago)

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