[Bug 1492180] Re: iwconfig reports wrong bitrate (6 Mb/s)

[fgimenez]

Same issue here.
iwconfig reports some number and it doesn't change no matter how the real rate varies depending on signal (I guess it's stuck on some initial rate).
while "iw dev wlan0 link" reports the rate properly and matches the rate I see on the router's end.

I've run this a few times and I can see "iw" reporting the rate changes
while "iwconfig" is stuck at the same number all the time.

$ iwconfig wlan0 | grep Rate
          Bit Rate=144.4 Mb/s   Tx-Power=15 dBm   
$ iw dev wlan0 link | grep rate
        tx bitrate: 300.0 MBit/s MCS 15 40Mhz short GI

$ iwconfig wlan0 | grep Rate ; iw dev wlan0 link | grep rate
          Bit Rate=144.4 Mb/s   Tx-Power=15 dBm   
        tx bitrate: 150.0 MBit/s MCS 7 40Mhz short GI

$ iwconfig wlan0 | grep Rate ; iw dev wlan0 link | grep rate
          Bit Rate=144.4 Mb/s   Tx-Power=15 dBm   
        tx bitrate: 300.0 MBit/s MCS 15 40Mhz short GI

OS: 64bit
Distro: Kubuntu 14.04.4 LTS  (using wily hardware enablement stack)
Desktop: KDE
uname -a: 4.2.0-27-generic #32~14.04.1-Ubuntu SMP Fri Jan 22 15:32:26 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

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https://bugs.launchpad.net/bugs/1492180

Title:
  iwconfig reports wrong bitrate (6 Mb/s)

Status in wireless-tools package in Ubuntu:
  New

Bug description:
  Upgraded to Wily. iwconfig now says the Bitrate is 6 Mb/s when 'iw dev
  wlan0 link' seems to report the correct bitrate.

  Firmware iwlwifi-7260-13.ucode

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: wireless-tools 30~pre9-8ubuntu1
  ProcVersionSignature: Ubuntu 4.1.0-3.3-generic 4.1.3
  Uname: Linux 4.1.0-3-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.18-0ubuntu9
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Fri Sep  4 12:43:52 2015
  Dependencies:
   gcc-5-base 5.2.1-15ubuntu5
   libc6 2.21-0ubuntu4
   libgcc1 1:5.2.1-15ubuntu5
   libiw30 30~pre9-8ubuntu1
   multiarch-support 2.21-0ubuntu4
  InstallationDate: Installed on 2011-11-11 (1393 days ago)
  InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  SourcePackage: wireless-tools
  UpgradeStatus: Upgraded to wily on 2015-09-04 (0 days ago)

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