shuhao, as per http://download.lenovo.com/express/ddfm.html an update is available for your BIOS (1.46). 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 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. ** Tags added: bios-outdated-1.46 ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Summary changed: - Graphics performance reduced after playing games for a little bit + [Lenovo ThinkPad T420] Graphics performance reduced after playing games for a little bit -- 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/1236653 Title: [Lenovo ThinkPad T420] Graphics performance reduced after playing games for a little bit Status in The Linux Kernel: Fix Released Status in Mesa: Unknown Status in “linux” package in Ubuntu: Incomplete Bug description: I recently upgraded to Saucy. I noticed that everytime I play something like Counter Strike Source, my graphics performance drops down to something like 15fps while normally it is locked at a max FPS of 40fps.. This slowdown happens and also makes my computer generally pretty slow. Thermo maximum has not been tripped (I know, and I actually underclock while playing these games). I'm not sure why this is happening. It only happens on 13.10. I have bumblebee installed. I used both cards to play the game and the same thing happens ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-11-generic 3.11.0-11.17 ProcVersionSignature: Ubuntu 3.11.0-11.17-generic 3.11.3 Uname: Linux 3.11.0-11-generic x86_64 ApportVersion: 2.12.5-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: shuhao 2611 F.... pulseaudio shuhao 4063 F.... plugin-containe /dev/snd/pcmC0D0p: shuhao 4063 F...m plugin-containe /dev/snd/timer: shuhao 4063 f.... plugin-containe Date: Mon Oct 7 20:39:17 2013 HibernationDevice: RESUME=UUID=0c4e9477-6a74-48cb-a0e4-37bc3251580e InstallationDate: Installed on 2013-07-08 (91 days ago) InstallationMedia: Xubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1) MachineType: LENOVO 4180J4C MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-11-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash i915.modeset=1 i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Failed to create secure directory (/run/user/1000/pulse): Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.11.0-11-generic N/A linux-backports-modules-3.11.0-11-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-09-25 (12 days ago) dmi.bios.date: 05/17/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 83ET57WW (1.27 ) dmi.board.asset.tag: Not Available dmi.board.name: 4180J4C 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:bvr83ET57WW(1.27):bd05/17/2011:svnLENOVO:pn4180J4C:pvrThinkPadT420:rvnLENOVO:rn4180J4C:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4180J4C dmi.product.version: ThinkPad T420 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1236653/+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
