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[ullix <1456585@xxxxxxxxxxxxxxxxxx>]

Daniel,

that part may well be what is tested at the other bug, however, this in
not the issue of this report. The issue here is that no 2.4GHz is
available with kernels, where the bcmwl module DOES build!

These kernels with working wl module at 5GHz, yet failing at 2.4 GHz are now:
3.13.0-52-generic
3.13.0.53-generic
3.16.0-37-generic
3.16.0.38-generic
3.19.0-18-generic

My problem is to get the bare necessities working on this f***ing
laptop, which came "factory pre-installed" with Ubuntu. How great; so
far the worst computer I ever tried Ubuntu on.

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https://bugs.launchpad.net/bugs/1456585

Title:
  14e4:43b1 DELL XPS 13 (9343) Only wireless 5GHz works, but not 2.4GHz

Status in bcmwl package in Ubuntu:
  Incomplete
Status in linux package in Ubuntu:
  Invalid

Bug description:
  This laptop came factory preinstalled with Ubuntu 14.04, but it had
  and still has way too many problems.

  I have now kernel 3.16.0-37-generic running. The wireless driver is
  wl, installed from bcmwl-kernel-source. I have wireless working at
  5GHz with good speed, everything well. However, I can't connect to
  wireless on 2.4GHz.

  Before I had kernel 3.13.0-52-generic, which had the same problem. I
  tried kernel 4.1.0-rc2 and rc3, but both failed on installing from
  bcmwl-kernel-source.

  Trying "iwlist wlan0 freq" I get a list of channels 1-14 at 2.4GHz,
  and 32-66 at 5GHz. Still, only the 5GHz works. Other devices in my
  house do connect well to the 2.4GHz (from a Fritzbox router).

  "iwlist wlan0 scan" has "no scan result" when 5GHz is disabled, and
  finds one network at 5.18GHz when enabled.

  Network controller [0280]: Broadcom Corporation BCM4352 802.11ac Wireless Network Adapter [14e4:43b1] (rev 03)
  	Subsystem: Dell Device [1028:0019]

  ---
  ApportVersion: 2.14.1-0ubuntu3.10
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ullix      1839 F.... pulseaudio
   /dev/snd/controlC0:  ullix      1839 F.... pulseaudio
  CurrentDesktop: MATE
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-trusty-amd64-20140620-0
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=7b6c248b-36d3-4dcf-9e9e-427d50206af6
  InstallationDate: Installed on 2015-04-24 (25 days ago)
  InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20140620-04:25
  MachineType: Dell Inc. XPS 13 9343
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-37-generic root=UUID=fda802ca-9257-4fed-bb0d-9f4756dca419 ro pcie_aspm=force radeon.modeset=0 plymouth:debug drm.debug=0xe nouveau.modeset=0 video.use_native_backlight=1 quiet splash pcie_aspm=force radeon.modeset=0 nouveau.modeset=0 video.use_native_backlight=1 "acpi_osi=Windows 2013"
  ProcVersionSignature: Ubuntu 3.16.0-37.51~14.04.1-generic 3.16.7-ckt9
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-37-generic N/A
   linux-backports-modules-3.16.0-37-generic  N/A
   linux-firmware                             1.127.11
  Tags:  trusty
  Uname: Linux 3.16.0-37-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare scanner sudo tape video
  _MarkForUpload: True
  dmi.bios.date: 03/25/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A03
  dmi.board.name: 0TM99H
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA03:bd03/25/2015:svnDellInc.:pnXPS139343:pvr01:rvnDellInc.:rn0TM99H:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9343
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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