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I've tried dozens of advices, mostly from askubuntu, about disabling secure boot, purging and reinstalling bcmwl-kernel-source, followed guide for signing bcmwl-kernel-source, tried changing bcmwl-kernel-source for fcutterb43, etc. Nothing is working. No wifi after yesterday's update.

Whenever I reboot, I see this in the consoles -- though it flashes by really fast. Whenever I install something or update/upgrade, I see this. Whenever I do anything about modprobe or install bcmwl-kernel-source, this is the culprit:

libkmod: ERROR ../libkmod/libkmod-config.c:635 kmod_config_parse: /etc/modprobe.d/local.conf line 2: ignoring bad line starting with 'drm_kms_helper'

When running $ sudo modprobe wl I get the above, plus:

 libkmod: ERROR ../libkmod/libkmod-config.c:635 kmod_config_parse: /etc/modprobe.d/local.conf line 2: ignoring bad line starting with 'drm_kms_helper' modprobe: FATAL: Module wl not found in directory /lib/modules/4.4.0-42-generic

Dell 13" 9350 BCM4350 broadcom wireless

More info per @Chili555 's request:

lspci -nnk | grep 0280 -A2

libkmod: ERROR ../libkmod/libkmod-config.c:635 kmod_config_parse: /etc/modprobe.d/local.conf line 2: ignoring bad line starting with 'drm_kms_helper'
3a:00.0 Network controller [0280]: Broadcom Limited BCM4350 802.11ac Wireless Network Adapter [14e4:43a3] (rev 08)
    Subsystem: Dell BCM4350 802.11ac Wireless Network Adapter [1028:0023]
    Kernel driver in use: brcmfmac

cat /etc/modprobe.d/local.conf

options drm_kms_helper poll=N
drm_kms_helper
options drm_kms_helper poll=N
Pilot6
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Tom Mercer
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  • It is unclear what wireless module you have and what you did. – Pilot6 Oct 11 '16 at 14:33
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    It is not w1 with a one; it is wl with an L. What is the result of: sudo modprobe wl? – chili555 Oct 11 '16 at 14:36
  • tom::~$ sudo modprobe wl

    libkmod: ERROR ../libkmod/libkmod-config.c:635 kmod_config_parse: /etc/modprobe.d/local.conf line 2: ignoring bad line starting with 'drm_kms_helper' modprobe: FATAL: Module wl not found in directory /lib/modules/4.4.0-42-generic

     – Tom Mercer Oct 11 '16 at 14:39
  • Please edit your question to add details of your device: lspci -nnk | grep 0280 -A2 Also: cat /etc/modprobe.d/local.conf – chili555 Oct 11 '16 at 15:46
  • chili555 Thank you for helping, added those details to the question. – Tom Mercer Oct 11 '16 at 16:57
  • Please [edit] your question and add output of rfkill list terminal command. – Pilot6 Oct 11 '16 at 17:10

1 Answers1

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Remove this local.conf by

sudo rm /etc/modprobe.d/local.conf

This file has a wrong format.

If you really need this setting (I have no idea why you added it), the correct format of that file is

options drm_kms_helper poll=N

You need to remove the first two lines.

Regarding the wireless adapter do not install bcmwl-kernel-source. This adapter is supported by brcmfmac in kernels 4.4+. It may be blocked by rfkill though.

Pilot6
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