brcmfmac: Direct firmware load failed

[Nico Hen]

This bug is a reference for https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1575321 as penalvch requested a new bug with created by ubuntu-bug linux. This bug may be assigned to penalvch due to the post from 2016-06-29 in bug 1575321.

"brcmfmac 0000:02:00.0: Direct firmware load for brcm/brcmfmac43602-pcie.txt failed with error -2

Usually rmmod brcmfmac && modprobe brcmfmac successfully load the driver, and wifi is functional once more"

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.8.0-52-generic 4.8.0-52.55~16.04.1
ProcVersionSignature: Ubuntu 4.8.0-52.55~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-52-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.6
Architecture: amd64
CurrentDesktop: Unity
Date: Thu May 25 16:15:42 2017
EcryptfsInUse: Yes
InstallationDate: Installed on 2017-05-23 (2 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
SourcePackage: linux-hwe
UpgradeStatus: No upgrade log present (probably fresh install)

[Nico Hen (nhen)]

I installed bcmwl-kernel-source and can now connect to wifi networks. But the error persists:

$ sudo modprobe brcmfmac
$ dmesg | less
[...]
[ 118.694817] usbcore: registered new interface driver brcmfmac
[ 118.801493] brcmfmac 0000:02:00.0: Direct firmware load for brcm/brcmfmac43602-pcie.txt failed with error -2
[ 119.307710] brcmf_c_preinit_dcmds: Firmware version = wl0: Nov 10 2015 06:38:10 version 7.35.177.61 (r598657) FWID 01-ea662a8c
[ 119.352019] brcmf_cfg80211_reg_notifier: not a ISO3166 code (0x30 0x30)
[...]

Best,
Nico

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Don W (donw)]

Not sure if it is a fix per se but it appears to just be looking for the presence of a .txt file by that name. I created brcmfmac43602-pcie.txt in the proper directory and just typed gibberish into it. I rebooted, re-ran 'dmesg | grep error', and found that the error is gone. Bluetooth seems to work just fine. Or at least my bluetooth mouse is connecting and working correctly.

[Noel McLoughlin (noelmcloughlin)]

Thanks, I used same workaround on Debian for similar problem.
# cp /lib/firmware/brcmfmac43430-sdio.txt /lib/firmware/brcmfmac43455-sdio.txt