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[Bug 1577113] Re: 50/50 chance for BCM43602 to come up correctly during boot


sudo modprobe -r brcmfmac && sudo modprobe brcmfmac also works for me on
my mac book pro running xenial mate edition.

Another note that if the laptop goes to sleep and wakes it may lose the
network interface. It appears as 'auto ethernet' when it's not
functioning properly.

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  50/50 chance for BCM43602 to come up correctly during boot

Status in linux package in Ubuntu:

Bug description:
  My BCM43602 has a 50/50 chance during boot of ever becoming "ready"
  and pulling an IP address. The problem seems to be this "link is not
  ready" and "already exists" loop. The log I sent was one of the cases
  where things eventually worked. If I get unlucky, it simply repeats
  the "already exists" / "not ready" loop indefinitely.

  I get a similar situation when suspending/resuming. I've already
  pulled the firmware and stuck it under /lib (see dmesg output for

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-21-generic 4.4.0-21.37 [modified: boot/vmlinuz-4.4.0-21-generic]
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
   /dev/snd/controlC0:  greg.taylor   2418 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun May  1 01:11:42 2016
  HibernationDevice: RESUME=UUID=efd205da-4a67-4d8a-9c0e-6f3036178157
  InstallationDate: Installed on 2016-04-28 (3 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 003: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-21-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
   linux-restricted-modules-4.4.0-21-generic N/A
   linux-backports-modules-4.4.0-21-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/07/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.02.00
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr01.02.00:bd04/07/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

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