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[Bug 1398585] Re: [Inter 7260] Very slow and unstable WIFI

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: "Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>
Date: Wed, 03 Dec 2014 04:50:10 -0000
Reply-to: Bug 1398585 <1398585@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

BruceWouaigne, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1398585

** Package changed: linux-lts-utopic (Ubuntu) => linux (Ubuntu)

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

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

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https://bugs.launchpad.net/bugs/1398585

Title:
  [Inter 7260] Very slow and unstable WIFI

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Using an Asus Zenbook UX303L, with the last kernel, wifi is almost
  unusable. The connection is VERY slow and keeps dropping.

  There was absolutely no problem with the linux-image-3.13.0-40-generic
  kernel.

  Tried turning off the power management of wlan0 without any changes.

  lspci -knn | grep Net -A2

  02:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 6b)
      Subsystem: Intel Corporation Dual Band Wireless-N 7260 [8086:c160]
      Kernel driver in use: iwlwifi

  Here is the speedtest output with the last kernel:

  ☺  ~⮀ speedtest
  Retrieving speedtest.net configuration...
  Retrieving speedtest.net server list...
  Testing from Orange (***)...
  Selecting best server based on latency...
  Hosted by iperf.fr (Rouen) [315.45 km]: 15.149 ms
  Testing download speed........................................
  Download: 19.17 Mbits/s
  Testing upload speed..................................................
  Upload: 30.53 Mbits/s

  And after a rollback on the 3.13

  ☺  ~⮀ speedtest
  Retrieving speedtest.net configuration...
  Retrieving speedtest.net server list...
  Testing from Orange (***)...
  Selecting best server based on latency...
  Hosted by TestDebit.info (Limoges) [264.48 km]: 13.848 ms
  Testing download speed........................................
  Download: 61.95 Mbits/s
  Testing upload speed..................................................
  Upload: 71.33 Mbits/s

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-25-generic 3.16.0-25.33~14.04.2
  ProcVersionSignature: Ubuntu 3.16.0-25.33~14.04.2-generic 3.16.7
  Uname: Linux 3.16.0-25-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Tue Dec  2 22:39:01 2014
  InstallationDate: Installed on 2014-11-20 (12 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)

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