kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.12 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-trusty/

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1250949

Title:
  Slow WiFi with Intel 5300 on N networks

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I use Ubuntu 13.10 on a Thinkpad X200 (Intel Ultimate N WiFi Link 5300
  WLAN).

  What I expect to happen (what happened before):
  - Connect to N network
  - Do a speedest.net
  - get ~32Mbps

  What actually happens:
  - With N network I get ~1Mbps
  - Disabled wifi / speedtest via ethernet ~32Mbps / restarted modem and router anyway, same results

  What I do instead:
  - I change my router settings to BG-mixed (for the same network)
  - then I get ~8Mbps

  Now, I was offered a few updates earlier today and didn't really look
  at what was updated. However, this behaviour is new, it didn't happen
  before and I think it might be due to some update regression.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-13-generic 3.11.0-13.20
  ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
  Uname: Linux 3.11.0-13-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  florian    4689 F.... pulseaudio
  Date: Wed Nov 13 17:59:53 2013
  InstallationDate: Installed on 2013-02-27 (259 days ago)
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
  MachineType: LENOVO 7454CTO
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-13-generic root=UUID=50e476cc-6677-4bed-967c-a76d5860f056 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-13-generic N/A
   linux-backports-modules-3.11.0-13-generic  N/A
   linux-firmware                             1.116
  SourcePackage: linux
  StagingDrivers: zram
  UpgradeStatus: Upgraded to saucy on 2013-10-19 (24 days ago)
  dmi.bios.date: 05/18/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6DET53WW (3.03 )
  dmi.board.name: 7454CTO
  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:bvr6DET53WW(3.03):bd05/18/2009:svnLENOVO:pn7454CTO:pvrThinkPadX200:rvnLENOVO:rn7454CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 7454CTO
  dmi.product.version: ThinkPad X200
  dmi.sys.vendor: LENOVO

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