Alessandro Pignotti, as per http://www.sony.co.uk/support/en/product/VPCSB2C5E/updates an update is available for your BIOS (R2087H4). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and just provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Thank you for your understanding. ** Changed in: linux (Ubuntu) Status: Triaged => Incomplete ** Summary changed: - 1002:6760 Power consumption higher after resume, probably vgaswitcheroo/radeon related + 1002:6760 [Sony VAIO VPCSB2C5E] Power consumption higher after resume, probably vgaswitcheroo/radeon related -- 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/1027522 Title: 1002:6760 [Sony VAIO VPCSB2C5E] Power consumption higher after resume, probably vgaswitcheroo/radeon related Status in The Linux Kernel: Confirmed Status in “linux” package in Ubuntu: Incomplete Bug description: I noticed that the power consumption, as reported in /proc/acpi/battery/BAT1/state gets higher when I resume my laptop from suspend to RAM. I strongly suspect that this is related to a bug in vgaswitcheroo or the radeon driver, since the power used after resume is consistent with the power used when the discrete video card is not off. Before resume I made sure the discrete card was off by using sudo bash -c "echo OFF > /sys/kernel/debug/vgaswitcheroo/switch" At resume, with high power consumption, the state is reported as expected: sudo cat /sys/kernel/debug/vgaswitcheroo/switch 0:IGD:+:Pwr:0000:00:02.0 1:DIS: :Off:0000:01:00.0 Still, if I run: sudo bash -c "echo ON > /sys/kernel/debug/vgaswitcheroo/switch" sudo bash -c "echo OFF > /sys/kernel/debug/vgaswitcheroo/switch" Now the power consumption goes down to the expected level. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image (not installed) ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19 Uname: Linux 3.2.0-26-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu5 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC275 Analog [ALC275 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: alex 2005 F.... pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xc9400000 irq 51' Mixer name : 'Intel CougarPoint HDMI' Components : 'HDA:10ec0275,104d5000,00100005 HDA:80862805,104d5000,00100000' Controls : 26 Simple ctrls : 10 Date: Sun Jul 22 01:23:17 2012 HibernationDevice: RESUME=UUID=6b1034dd-b958-4939-88b4-829282357ed6 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110930) MachineType: Sony Corporation VPCSB2C5E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-26-generic root=UUID=d4bbd7c4-dc64-42f6-a165-073e9b828c86 ro pcie_aspm=force i915.i915_enable_rc6=1 RelatedPackageVersions: linux-restricted-modules-3.2.0-26-generic N/A linux-backports-modules-3.2.0-26-generic N/A linux-firmware 1.79 SourcePackage: linux StagingDrivers: rts_pstor mei UpgradeStatus: Upgraded to precise on 2012-04-27 (85 days ago) dmi.bios.date: 04/25/2011 dmi.bios.vendor: INSYDE dmi.bios.version: R1031H4 dmi.board.asset.tag: N/A dmi.board.name: VAIO dmi.board.vendor: Sony Corporation dmi.board.version: N/A dmi.chassis.asset.tag: N/A dmi.chassis.type: 10 dmi.chassis.vendor: Sony Corporation dmi.chassis.version: N/A dmi.modalias: dmi:bvnINSYDE:bvrR1031H4:bd04/25/2011:svnSonyCorporation:pnVPCSB2C5E:pvrC609LHCC:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A: dmi.product.name: VPCSB2C5E dmi.product.version: C609LHCC dmi.sys.vendor: Sony Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1027522/+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
