Thanks for the response. I believe this is a regression. The performance degradation happened after the last update. Am hesitant to do a BIOS upgrade right now.
Giving you my bios information as requested. $ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date G2ET92WW (2.52 ) 02/22/2013 -- 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/1194947 Title: Power management: Audio codec Status in “linux” package in Ubuntu: Incomplete Bug description: The battery backup drop significantly since upgrading to linux kernel 3.8.0-25 on Lenovo X230 laptop $ uname -a Linux arky-ThinkPad-X230 3.8.0-25-generic #37-Ubuntu SMP Thu Jun 6 20:47:07 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Some of stats from powertop: The battery reports a discharge rate of 9.93 W System baseline power is estimated at 3.98 W Power est. Usage Device name 5.66 W 2972 rpm Laptop fan 0.0 pkts/s Network interface: eth0 (e1000e) 931 mW 100.0% Audio codec hwC0D0: Realtek (pulseaudio ) 188 mW 13.4% CPU use 62.4 mW 40.0% Display backlight 62.4 mW 15.3% Display backlight 0 mW 50968 pkts/s Network interface: wlan0 (iwlwifi) 0 mW 100.0% USB device: Biometric Coprocessor (Auth) 0 mW 100.0% Radio device: iwlwifi 0 mW 100.0% USB device: EHCI Host Controller 0 mW 100.0% USB device: usb-device-8087-0024 0 mW 30.2 ops/s GPU 0 mW 0.0% Audio codec hwC0D3: Intel 0 mW 0.0% USB device: xHCI Host Controller 0 mW 0.0% USB device: Integrated Camera (Chicony Electroni 0 mW 0.0% Radio device: thinkpad_acpi 0 mW 0.0% USB device: xHCI Host Controller 0 mW 0.0% USB device: usb-device-8087-0024 0 mW 0.0% USB device: EHCI Host Controller 100.0% PCI Device: Ricoh Co Ltd PCIe SDXC/MMC Host Cont 100.0% PCI Device: Intel Corporation 7 Series/C210 Seri 100.0% PCI Device: Intel Corporation 7 Series/C210 Seri 100.0% PCI Device: Intel Corporation 7 Series/C210 Seri 100.0% PCI Device: Intel Corporation 7 Series/C210 Seri 100.0% PCI Device: Intel Corporation Centrino Advanced- 100.0% PCI Device: Intel Corporation QM77 Express Chips 100.0% PCI Device: Intel Corporation 7 Series Chipset F >> Bad NMI watchdog should be turned off Bad VM writeback timeout Bad Enable SATA link power management for /dev/sda Bad Autosuspend for USB device Biometric Coprocessor [Auth] Bad Runtime PM for PCI Device Intel Corporation 7 Series/C210 Bad Runtime PM for PCI Device Intel Corporation 7 Series/C210 Bad Runtime PM for PCI Device Intel Corporation 7 Series Chip Bad Runtime PM for PCI Device Intel Corporation QM77 Express Bad Runtime PM for PCI Device Intel Corporation 7 Series/C210 Bad Runtime PM for PCI Device Intel Corporation 7 Series/C210 Bad Runtime PM for PCI Device Intel Corporation 7 Series/C210 Bad Runtime PM for PCI Device Intel Corporation 3rd Gen Core Bad Runtime PM for PCI Device Intel Corporation 7 Series/C210 Bad Runtime PM for PCI Device Intel Corporation 7 Series/C210 Bad Runtime PM for PCI Device Intel Corporation 7 Series/C210 Bad Runtime PM for PCI Device Intel Corporation 7 Series/C210 Good Wireless Power Saving for interface wlan0 Good Enable Audio codec power management $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 13.04 Release: 13.04 Codename: raring ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image (not installed) ProcVersionSignature: Ubuntu 3.8.0-25.37-generic 3.8.13 Uname: Linux 3.8.0-25-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: arky 6776 F.... pulseaudio Date: Wed Jun 26 23:20:02 2013 HibernationDevice: RESUME=UUID=c5f56686-e811-4a8d-8f78-b24d09979e81 InstallationDate: Installed on 2013-03-22 (95 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MachineType: LENOVO 2306CTO MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-25-generic root=UUID=f5b20430-0889-4e78-9a8b-a444ea60eb74 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.8.0-25-generic N/A linux-backports-modules-3.8.0-25-generic N/A linux-firmware 1.106 SourcePackage: linux UpgradeStatus: Upgraded to raring on 2013-05-04 (53 days ago) dmi.bios.date: 02/22/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET92WW (2.52 ) dmi.board.asset.tag: Not Available dmi.board.name: 2306CTO dmi.board.vendor: LENOVO dmi.board.version: Win8 Pro DPK TPG dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET92WW(2.52):bd02/22/2013:svnLENOVO:pn2306CTO:pvrThinkPadX230:rvnLENOVO:rn2306CTO:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2306CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1194947/+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
