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Message #165574
[Bug 1547884] Re: Broadcom Corp. BCM5880 Secure Applications Processor eats too much power
Martin Pecka, in order to allow additional upstream developers to examine the issue, at your earliest convenience, could you please test the latest upstream kernel available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ? Please keep in mind the following:
1) The one to test is at the very top line at the top of the page (not the daily folder).
2) The release names are irrelevant.
3) The folder time stamps aren't indicative of when the kernel actually was released upstream.
4) Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds .
If testing on your main install would be inconvenient, one may:
1) Install Ubuntu to a different partition and then test this there.
2) Backup, or clone the primary install.
If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ
Where X, and Y are the first two numbers of the kernel version, and Z is
the release candidate number if it exists.
If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ
Please note, an error to install the kernel does not fit the criteria of
kernel-bug-exists-upstream.
Also, you don't need to apport-collect further unless specifically
requested to do so.
Once testing of the latest upstream kernel is complete, please mark this
report Status Confirmed. Please let us know your results.
Thank you for your understanding.
** Tags added: latest-bios-a16
** Changed in: linux (Ubuntu)
Importance: Low => Medium
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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)
---
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.
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