The wireless on this machine (Dell XPS 13 9343) is constantly crashing

[Wren Turkal]

I've included a dmesg from after a point when the wireless is no longer working. Also, I experience frequent panics (caps lock blinking). I don't know if that is related since I haven't yet been able to get any information after such a crash. When it crashes that way, I generally have to power cycle the machine, let it boot to the dell logo, and then power cycle the machine again to get it to boot.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-22-generic 3.19.0-22.22
ProcVersionSignature: Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1
Uname: Linux 3.19.0-22-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: wt 1864 F.... pulseaudio
 /dev/snd/controlC0: wt 1864 F.... pulseaudio
CurrentDesktop: Unity
Date: Wed Jul 15 16:04:36 2015
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-trusty-amd64-20140620-0
HibernationDevice: RESUME=UUID=25d5c49f-dec3-4600-906b-5942cd316c4e
InstallationDate: Installed on 2015-04-29 (77 days ago)
InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20140620-04:25
MachineType: Dell Inc. XPS 13 9343
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-22-generic root=UUID=33afd237-d4ef-43f9-a375-d5693be6aaff ro quiet splash pcie_aspm=force radeon.modeset=0 nouveau.modeset=0 video.use_native_backlight=1 pcie_aspm=force radeon.modeset=0 nouveau.modeset=0 video.use_native_backlight=1 vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.19.0-22-generic N/A
 linux-backports-modules-3.19.0-22-generic N/A
 linux-firmware 1.143.1
SourcePackage: linux
UpgradeStatus: Upgraded to vivid on 2015-04-30 (76 days ago)
dmi.bios.date: 05/15/2015
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A04
dmi.board.name: 0310JH
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA04:bd05/15/2015:svnDellInc.:pnXPS139343:pvr01:rvnDellInc.:rn0310JH:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: XPS 13 9343
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.2 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-rc2-unstable/

[Seth Forshee (sforshee)]

The Broadcom wireless on this machine is supported via a proprietary driver from Broadcom and not from an in-kernel driver. Changing the affected package to bcmwl-kernel-source.

I didn't see anything in dmesg about the wireless problems, just a bunch of warnings about reading the EDID for your panel.

You should file a separate bug for the lockups.

[Wren Turkal (wt-penguintechs-org)]

Thanks for that info Seth. I guess I am suffering from multiple issues. Is there any work on the BCM4352 in the linux kernel right now? This proprietary driver is a black box.