Arch Linux

mlotze

Member

Registered: 2014-04-30

Posts: 6

[Solved] Broadcom BCM4350 Wireless with driver brcmfmac fails to load

Suddenly, the wireless on my Laptop stopped working.

The card is recognized in `lspci -vnn -d 14e4:` and says "Kernel modules: brcmfmac", but there is no line "Kernel Driver above or below, as you'd expect.

dmesg -w gives:

brcmfmac: brcmf_chip_recognition: chip backplane type 15 is not supported
brcmfmac: brcmf_pcie_probe: failed 14e4:43a3

The card was working without any issues before.

linux 4.7.1
linux-firmware 20160730.6bc2c60-1

Any ideas?

Last edited by mlotze (2016-09-07 09:11:55)

cryptodoomchicken

Member

Registered: 2016-09-05

Posts: 6

Re: [Solved] Broadcom BCM4350 Wireless with driver brcmfmac fails to load

I have a BCM4352, very similar to yours. I used to use the broadcom-wl package from the AUR for my driver. This driver is known to break from time to time on kernel upgrades. Which is why I recently switched to broadcom-wl-dkms from the AUR. The DKMS version automatically rebuilds itself with a new kernel.

Read the area highlighted in green:
https://wiki.archlinux.org/index.php/Br … roadcom-wl

See if the DKMS version fixes the problem and report back.

mlotze

Member

Registered: 2014-04-30

Posts: 6

Re: [Solved] Broadcom BCM4350 Wireless with driver brcmfmac fails to load

Thanks!

I installed the broadcom-wl-dkms package (the dkms install was run by the pacman hook, very nice!).

Rebooted, then saw that the wl kernel module was not loaded (lspci output). Ran modprobe wl, dmesg output below:

# dmesg output 
[    8.652698] wl: module license 'MIXED/Proprietary' taints kernel.
[    8.652702] Disabling lock debugging due to kernel taint
[    8.656133] wl 0000:3a:00.0: enabling device (0000 -> 0002)
[    8.667525] wl driver 6.30.223.271 (r587334) failed with code 13
[    8.667527] ERROR @wl_cfg80211_detach : NULL ndev->ieee80211ptr, unable to deref wl

I don't know much about kernel modules etc, but this naively looks to me as if there is some kind of dependency missing here.

mlotze

Member

Registered: 2014-04-30

Posts: 6

Re: [Solved] Broadcom BCM4350 Wireless with driver brcmfmac fails to load

Okay, I fixed the problem by installing the

bcm4350-firmware

package from the AUR. Solved.