Public bug reported:
Hi,
I do not know which package/condition to attribute this behaviour to,
but MBA running Ubuntu 14.04 is using about 50% of power that needs to
be delivered for 16.04. (minumum 10W power draw vs minimum ~5W draw).
Otherwise 16.04 works well.
Any clue how to tackle this?
Best,
b.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-31-generic 4.4.0-31.50
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: bostjan 3629 F.... pulseaudio
/dev/snd/controlC1: bostjan 3629 F.... pulseaudio
Date: Fri Aug 5 02:29:33 2016
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=a1169bd1-3502-4168-a9f9-639255a224c0
InstallationDate: Installed on 2016-08-04 (0 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Apple Inc. MacBookAir6,2
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-31-generic.efi.signed
root=/dev/mapper/as--u--vg-root ro quiet splash vt.handoff=7
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not
accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-4.4.0-31-generic N/A
linux-backports-modules-4.4.0-31-generic N/A
linux-firmware 1.157.2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/07/2014
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBA61.88Z.0099.B09.1402071141
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-7DF21CB3ED6977E5
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookAir6,2
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-7DF21CB3ED6977E5
dmi.modalias:
dmi:bvnAppleInc.:bvrMBA61.88Z.0099.B09.1402071141:bd02/07/2014:svnAppleInc.:pnMacBookAir6,2:pvr1.0:rvnAppleInc.:rnMac-7DF21CB3ED6977E5:rvrMacBookAir6,2:cvnAppleInc.:ct10:cvrMac-7DF21CB3ED6977E5:
dmi.product.name: MacBookAir6,2
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1610028
Title:
Power usage 50% worse than 14.04 on MacBook Air 6,2
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