Even with no network cable plugged in, powertop reports about 1W of power used by the sky2 (eth0) device. When unloading the module, the overall power usage goes down significantly, so although powertop doesn't always report the most reliable data about what single devices use, this one seems to be in the right ballpark.
As this is netbook hardware, a Watt is a lot, especially for nothing. I can't get per-device power usage estimates for Windows but the overall power usage was easily a Watt less than what I am able to achieve on Linux and this might be part of the problem.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-generic 3.2.0.19.21
ProcVersionSignature: Ubuntu 3.2.0-19.30-generic 3.2.11
Uname: Linux 3.2.0-19-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: cmertes 2809 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf0d00000 irq 48'
Mixer name : 'Realtek ALC269'
Components : 'HDA:10ec0269,144dc070,00100004'
Controls : 19
Simple ctrls : 11
Date: Wed Mar 21 14:41:03 2012
HibernationDevice: RESUME=UUID=b72e1140-3b8c-4c0f-8d5d-2ca98f1fdd1b
InstallationMedia: Lubuntu 12.04 "Precise Pangolin" - Alpha amd64 (20120201.1)
MachineType: SAMSUNG ELECTRONICS CO., LTD. N220
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm
PATH=(custom, user)
LANG=en_GB.UTF-8
SHELL=/usr/bin/fizsh
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-19-generic root=/dev/mapper/hostname-root ro quiet splash i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 915.lvds_downclock=1 drm.vblankoffdelay=1 pcie_aspm=force elevator=deadline vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-19-generic N/A
linux-backports-modules-3.2.0-19-generic N/A
linux-firmware 1.71
SourcePackage: linux
StagingDrivers: r8192e_pci
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/18/2010
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 00GD.M031.20100618.RHU
dmi.board.asset.tag: SAMSUNG
dmi.board.name: N220
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr00GD.M031.20100618.RHU:bd06/18/2010:svnSAMSUNGELECTRONICSCO.,LTD.:pnN220:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnN220:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.name: N220
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
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