kernel-packages team mailing list archive

[Seth Forshee <seth.forshee+lp@xxxxxxxxxxxxx>]

Thanks. The data is a little incomplete as some of the wireless frames
don't seem to be passed up from the driver, but what I do see (excessive
amounts of frame retransmissions) seems to indicate that your wireless
adapter has difficulty communicating with the APs. The problems
themselves are probably at the RF or firmware level, but they might be
caused by suboptimal configuration of the driver.

Unfortunately the Realtek wireless drivers are community supported, and
as far as I know there's no publicly available documentation. There's a
couple of things we can try though.

The easiest is to test the recent 3.14-rc1 kernel to see if any issues
have been fixed there. There's a build available at
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14-rc1-trusty/.

The other option is to try the out-of-tree driver from Realtek to see if
it performs any better. This driver is available at
http://www.realtek.com/downloads/downloadsView.aspx?Langid=1&PNid=48&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true
(you need the driver for RTL8188CE).

If either of these give you better results we can try to work out what
needs to be changed.

-- 
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/1276238

Title:
  Wifi Connection Dropping/Need to reconnect

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  While connected to wifi, my system will randomly drop the connection
  and ask me to reconnect.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-6-generic 3.13.0-6.23
  ProcVersionSignature: Ubuntu 3.13.0-6.23-generic 3.13.0
  Uname: Linux 3.13.0-6-generic x86_64
  ApportVersion: 2.13.2-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jason      2254 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Feb  4 16:25:02 2014
  HibernationDevice: RESUME=UUID=60d68a6f-e268-441d-a7b9-8626d1521267
  InstallationDate: Installed on 2012-11-06 (455 days ago)
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  MachineType: LENOVO 4286CTO
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-6-generic root=UUID=06af135e-53bd-4ecc-ba8a-471be159d14a ro quiet splash i915.semaphores=0 vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-6-generic N/A
   linux-backports-modules-3.13.0-6-generic  N/A
   linux-firmware                            1.123
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-01-07 (27 days ago)
  dmi.bios.date: 12/01/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8DET56WW (1.26 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4286CTO
  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:bvr8DET56WW(1.26):bd12/01/2011:svnLENOVO:pn4286CTO:pvrThinkPadX220:rvnLENOVO:rn4286CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4286CTO
  dmi.product.version: ThinkPad X220
  dmi.sys.vendor: LENOVO

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