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[Mike <802902@xxxxxxxxxxxxxxxxxx>]

Okay, I tested it on daily ubuntu Saucy build with v3.11-rc7 kernel, and
everything works fine. Thanks for fixing this bug!

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https://bugs.launchpad.net/bugs/802902

Title:
  Realtek rtl8187b wireless chipset slow speed

Status in The Linux Kernel:
  New
Status in “linux” package in Ubuntu:
  Fix Released

Bug description:
  Hi, I have ubuntu 11.04, all updates, wifi chipset rtl8187B, kernel 2.6.38-10, and 14mbit/s internet connection. 
  When I try to download something, for example from torrents, I see ping up (up to 500-800ms), slow speed (<1mbit/s) and packets lost.
  In windows its works fine, ping didnt up, download speed 14mbit/s. 
  So if I want to download something, I need to reboot from ubuntu to windows, or wait for download at low speed in ubuntu. And it's not good=(
  Thanks, and sorry my bad english.

  laptop:~$ uname -a
  Linux mike-laptop 2.6.38-10-generic #44-Ubuntu SMP Thu Jun 2 21:32:22 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

  laptop:~$ modprobe --show-depends rtl8187
  insmod /lib/modules/2.6.38-10-generic/updates/drivers/misc/eeprom/eeprom_93cx6.ko
  insmod /lib/modules/2.6.38-10-generic/updates/net/wireless/cfg80211.ko
  insmod /lib/modules/2.6.38-10-generic/updates/net/mac80211/mac80211.ko
  insmod /lib/modules/2.6.38-10-generic/updates/drivers/net/wireless/rtl818x/rtl8187/rtl8187.ko

  laptop:~$ sudo lsusb -d 0bda:8187
  Bus 001 Device 004: ID 0bda:8187 Realtek Semiconductor Corp. RTL8187 Wireless Adapter

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: linux-image-2.6.38-10-generic 2.6.38-10.44
  ProcVersionSignature: Ubuntu 2.6.38-10.44-generic 2.6.38.7
  Uname: Linux 2.6.38-10-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mike       2412 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfcb00000 irq 43'
     Mixer name	: 'Realtek ALC269'
     Components	: 'HDA:10ec0269,144dc06a,00100004'
     Controls      : 13
     Simple ctrls  : 8
  Card1.Amixer.info:
   Card hw:1 'NVidia'/'HDA NVidia at 0xddefc000 irq 16'
     Mixer name	: 'Nvidia GPU 0b HDMI/DP'
     Components	: 'HDA:10de000b,10de0101,00100100'
     Controls      : 16
     Simple ctrls  : 4
  Date: Tue Jun 28 13:24:48 2011
  HibernationDevice: RESUME=UUID=339679fe-6015-48a0-b9f5-9bdecde05562
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110405)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. R530/R730/P530
  ProcEnviron:
   LANGUAGE=ru_RU:en
   PATH=(custom, no user)
   LANG=ru_RU.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-10-generic root=UUID=eae27d1a-6cca-45bb-8c38-d8cdd238b079 ro quiet splash nomodeset video=uvesafb:mode_option=1377x768-24,mtrr=3,scroll=ywrap vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-2.6.38-10-generic N/A
   linux-backports-modules-2.6.38-10-generic  N/A
   linux-firmware                             1.52.1
  SourcePackage: linux
  UpgradeStatus: Upgraded to natty on 2011-05-04 (54 days ago)
  dmi.bios.date: 06/21/2010
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: 04KQ.M007.20100621.KSJ
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: R530/R730/P530
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr04KQ.M007.20100621.KSJ:bd06/21/2010:svnSAMSUNGELECTRONICSCO.,LTD.:pnR530/R730/P530:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnR530/R730/P530:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
  dmi.product.name: R530/R730/P530
  dmi.product.version: Not Applicable
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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