This is most likely a problem with the wl driver, not the kernel. Adding
a bcmwl task and marking the kernel task invalid.
It's not uncommon for dkms modules to fail to build against newer
kernels. The one thing to check is that you installed the linux-headers
package in addition to the linux-image package. If it still fails maybe
try a 3.19 kernel. In my opinion a newer kernel is unlikely to help, but
it's probably worth trying, and if it does help we can reopen the linux
task.
The thing I'd suggest you check first though is what channel your AP is
on. If it's not on 1-14 then you'll probably have to move it to a
different channel. Otherwise if the bug is in the bcmwl driver there's
may be little we can do to help since the majority of the driver is
closed source.
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to bcmwl in Ubuntu.
https://bugs.launchpad.net/bugs/1456585
Title:
DELL XPS 13 (9343) Only wireless 5GHz works, but not 2.4GHz
Status in bcmwl package in Ubuntu:
New
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.
---
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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