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[Bug 1236653] Re: [Lenovo ThinkPad T420] Graphics performance reduced after playing games for a little bit

 

I have the same problem. 
Notebook: Lenovo T420, Intel HD Graphics 3000

After starting Ubuntu everything works fine. If I use Google Maps in
Chromium/Firefox or working some time with LibreOffice the graphic
begins to stutter. Even if I only move a window for one end of the
screen to the other it jerky (anything but smoothly).

Yesterday I updated the BIOS to 2013-07-05 (latest version) but it did
not help.

The only thing that helps is a reboot.

Please let me know if you need more information.

Best 
 Tino

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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

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