kernel-packages team mailing list archive

Thread
Date
[Bug 1547884] Re: Broadcom Corp. BCM5880 Secure Applications Processor eats too much power

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Martin Pecka <peci1@xxxxxxxxx>
Date: Tue, 08 Mar 2016 01:53:12 -0000
Reply-to: Bug 1547884 <1547884@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
apport information

** Tags added: apport-collected

** Description changed:

  $ 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)
+ --- 
+ ApportVersion: 2.14.1-0ubuntu3.19
+ Architecture: amd64
+ AudioDevicesInUse:
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  peci1      2919 F.... pulseaudio
+  /dev/snd/pcmC1D0p:   peci1      2919 F...m pulseaudio
+  /dev/snd/controlC1:  peci1      2919 F.... pulseaudio
+ CurrentDesktop: Unity
+ DistroRelease: Ubuntu 14.04
+ HibernationDevice: RESUME=UUID=05314bb8-8590-474c-8af1-1c90dd3bb89c
+ InstallationDate: Installed on 2013-11-05 (853 days ago)
+ InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
+ MachineType: Dell Inc. Latitude E6540
+ Package: linux (not installed)
+ ProcFB:
+  0 inteldrmfb
+  1 radeondrmfb
+ ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-30-generic root=UUID=501ffea4-2b36-441b-a8ca-34805170c396 ro i8042.nopnp quiet splash radeon.modeset=1 radeon.dpm=1 i915.modeset=1 radeon.runpm=0 vt.handoff=7
+ ProcVersionSignature: Ubuntu 4.2.0-30.36~14.04.1-generic 4.2.8-ckt3
+ RelatedPackageVersions:
+  linux-restricted-modules-4.2.0-30-generic N/A
+  linux-backports-modules-4.2.0-30-generic  N/A
+  linux-firmware                            1.127.20
+ Tags:  trusty
+ Uname: Linux 4.2.0-30-generic x86_64
+ UpgradeStatus: Upgraded to trusty on 2014-04-12 (695 days ago)
+ UserGroups: adm autosshfs cdrom dip lpadmin plugdev sambashare sudo video
+ _MarkForUpload: True
+ dmi.bios.date: 09/01/2015
+ dmi.bios.vendor: Dell Inc.
+ dmi.bios.version: A16
+ dmi.board.name: 0CYT5F
+ dmi.board.vendor: Dell Inc.
+ dmi.board.version: A00
+ dmi.chassis.type: 9
+ dmi.chassis.vendor: Dell Inc.
+ dmi.modalias: dmi:bvnDellInc.:bvrA16:bd09/01/2015:svnDellInc.:pnLatitudeE6540:pvr00:rvnDellInc.:rn0CYT5F:rvrA00:cvnDellInc.:ct9:cvr:
+ dmi.product.name: Latitude E6540
+ dmi.product.version: 00
+ dmi.sys.vendor: Dell Inc.

** Attachment added: "AlsaInfo.txt"
   https://bugs.launchpad.net/bugs/1547884/+attachment/4592098/+files/AlsaInfo.txt

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
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)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  peci1      2919 F.... pulseaudio
   /dev/snd/pcmC1D0p:   peci1      2919 F...m pulseaudio
   /dev/snd/controlC1:  peci1      2919 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=05314bb8-8590-474c-8af1-1c90dd3bb89c
  InstallationDate: Installed on 2013-11-05 (853 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: Dell Inc. Latitude E6540
  Package: linux (not installed)
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-30-generic root=UUID=501ffea4-2b36-441b-a8ca-34805170c396 ro i8042.nopnp quiet splash radeon.modeset=1 radeon.dpm=1 i915.modeset=1 radeon.runpm=0 vt.handoff=7
  ProcVersionSignature: Ubuntu 4.2.0-30.36~14.04.1-generic 4.2.8-ckt3
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-30-generic N/A
   linux-backports-modules-4.2.0-30-generic  N/A
   linux-firmware                            1.127.20
  Tags:  trusty
  Uname: Linux 4.2.0-30-generic x86_64
  UpgradeStatus: Upgraded to trusty on 2014-04-12 (695 days ago)
  UserGroups: adm autosshfs cdrom dip lpadmin plugdev sambashare sudo video
  _MarkForUpload: True
  dmi.bios.date: 09/01/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A16
  dmi.board.name: 0CYT5F
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA16:bd09/01/2015:svnDellInc.:pnLatitudeE6540:pvr00:rvnDellInc.:rn0CYT5F:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E6540
  dmi.product.version: 00
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1547884/+subscriptions