Hi nicolas, your workaround script works for me, but it takes about 60seconds to resume, even with the sleep 45 removed.
I changed it to this: #!/bin/sh echo ON > /sys/kernel/debug/vgaswitcheroo/switch sleep 2 echo OFF > /sys/kernel/debug/vgaswitcheroo/switch exit 0 Now I get 9.8watts usage vs. 18-21ish watts and double battery life. Works awesome like this, thanks for showing us the workaround :D -- 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/909337 Title: Power consumption significantly increased after resume from suspend Status in The Linux Kernel: Invalid Status in “linux” package in Ubuntu: Confirmed Bug description: I have a HP Envy 14 laptop with switchable graphics (not sure if this is related with the issue). After disabling the dedicated GPU (and turning it OFF) and and enabling PCIe power saving features, (pcie_aspm=force in grub) the idle power consumption hovers around 14w, a little over what Windows give, but still very good. However, after suspending and resuming, power consumption goes up, to around 20w reducing battery life significantly. Discrete GPU is still OFF, and there is no process using the CPU. I am not the only one having this problem. For reference, see: http://ubuntuforums.org/showthread.php?t=1502350 http://linuxenvy.blogspot.com/2011/01/battery-life-review.html The first one is a Acer TravelMate Timeline 8371 (without switchable graphics) running Ubuntu 10.04. The second one is another HP Envy, running Ubuntu 10.10. I am running Ubuntu 11.10 amd64 fully updated. I think this is a important problem and should be studied for the next LTS at least. If I can help with more info, I gladly will. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-14-generic 3.0.0-14.23 ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9 Uname: Linux 3.0.0-14-generic x86_64 NonfreeKernelModules: wl AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu4 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: nicolas 2591 F.... pulseaudio /dev/snd/controlC0: nicolas 2591 F.... pulseaudio CRDA: Error: [Errno 2] No existe el archivo o el directorio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xc4500000 irq 44' Mixer name : 'IDT 92HD81B1X5' Components : 'HDA:111d7605,103c1436,00100402' Controls : 14 Simple ctrls : 9 Card1.Amixer.info: Card hw:1 'Generic'/'HD-Audio Generic at 0xc4420000 irq 46' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100200' Controls : 4 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] Date: Wed Dec 28 08:41:46 2011 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=cad496f9-2265-42f3-9440-6badb0ccef97 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 003: ID 10f1:1a25 Importek MachineType: Hewlett-Packard HP ENVY 14 Notebook PC ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-14-generic root=UUID=936fe9a2-4f7d-4879-81ea-65810c2ac937 ro quiet splash pcie_aspm=force hybridopts=ON,IGD,OFF vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.0.0-14-generic N/A linux-backports-modules-3.0.0-14-generic N/A linux-firmware 1.60 SourcePackage: linux StagingDrivers: brcmutil mei brcmsmac UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/21/2010 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: F.06 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 1436 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 59.1F dmi.chassis.asset.tag: CNU03538DZ dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: N/A dmi.modalias: dmi:bvnHewlett-Packard:bvrF.06:bd07/21/2010:svnHewlett-Packard:pnHPENVY14NotebookPC:pvr0492100000241910000620000:rvnHewlett-Packard:rn1436:rvrKBCVersion59.1F:cvnHewlett-Packard:ct10:cvrN/A: dmi.product.name: HP ENVY 14 Notebook PC dmi.product.version: 0492100000241910000620000 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/909337/+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
