apport information ** Attachment added: "IwConfig.txt" https://bugs.launchpad.net/bugs/1547884/+attachment/4592102/+files/IwConfig.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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
