Public bug reported:
Hi, didn't notice this before but looks like my laptop is consuming a
lot more power than on saucy, and it's not caused by i915 locked on to
higher gpu frequency (checked
/sys/kernel/debug/dri/0/i915_cur_delayinfo).
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-11-generic 3.13.0-11.31
ProcVersionSignature: Ubuntu 3.13.0-11.31-generic 3.13.3
Uname: Linux 3.13.0-11-generic x86_64
ApportVersion: 2.13.2-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tjaalton 2952 F.... pulseaudio
CurrentDesktop: Unity
Date: Sat Feb 22 11:27:13 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2011-09-12 (893 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
MachineType: LENOVO 4170CTO
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-11-generic
root=UUID=d855f499-6e26-4f5c-89df-81bcf94082bd ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-11-generic N/A
linux-backports-modules-3.13.0-11-generic N/A
linux-firmware 1.125
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2013-12-11 (72 days ago)
dmi.bios.date: 09/13/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 8CET55WW (1.35 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4170CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr8CET55WW(1.35):bd09/13/2012:svnLENOVO:pn4170CTO:pvrThinkPadT420s:rvnLENOVO:rn4170CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4170CTO
dmi.product.version: ThinkPad T420s
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty
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https://bugs.launchpad.net/bugs/1283384
Title:
regression: Lenovo T420s idle power consumption 7W->12W
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