LinuxQuestions.org - [SOLVED] Can't get wi-fi to work

- Ubuntu (https://www.linuxquestions.org/questions/ubuntu-63/)

- - Can't get wi-fi to work (https://www.linuxquestions.org/questions/ubuntu-63/cant-get-wi-fi-to-work-4175601948/)

Quote:

Originally Posted by ardvark71 (Post 5684558)

Hi...

While that's a possibility, I'm not inclined to think that's the cause at this point. Is the adapter enabled in your BIOS?

Also, can you also post the results of these commands...

Code:

lspci -nnk | grep -i net -A2

Code:

sudo lshw -C network

Disclaimer: Be careful with commands that are prefaced with "su" or "sudo." They will essentially allow root access to your system. Mistakes could possibly damage or even destroy your OS.

Regards...

I will try your suggestions tomorrow morning. It's bedtime where I'm at.

Quote:

I know it's not the wi-fi in the home because other devices, like an iPad, are working fine.

Is the driver for the BCM43142 installed?
lsmod will show all drivers:-

Looking at this output that our Moderator jefro mentions; suggest's that the BCM43X is blacklisted:-

Code:

/etc/modprobe.d/blacklist-ath_pci.conf]

blacklist ath_pci



[/etc/modprobe.d/blacklist-bcm43.conf]

blacklist b43

blacklist b43legacy

blacklist ssb

blacklist bcm43xx

-::-Also if the wrong driver is loading first it will cause the device not to work.-::-

Maybe try using a usb wifi dongle:-

http://www.wirelesshack.org/top-linu...-adapters.html

Curious to see if the kernel driver is in use.

Quote:

Did that early on, no dice.

Please do not take this the wrong way. Telling us what you have already tried helps get you better answers to your Linux Questions.

Quote:

Originally Posted by ardvark71 (Post 5684558)

Hi...

While that's a possibility, I'm not inclined to think that's the cause at this point. Is the adapter enabled in your BIOS?

Also, can you also post the results of these commands...

Code:

lspci -nnk | grep -i net -A2

Code:

sudo lshw -C network

Disclaimer: Be careful with commands that are prefaced with "su" or "sudo." They will essentially allow root access to your system. Mistakes could possibly damage or even destroy your OS.

Regards...

michael@michael-HP-Pavilion-Notebook:~$ lspci -nnk | grep -i net -A2
08:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
DeviceName: Broadcom BCM43142 802.11 b/g/n 1x1Wi-Fi + BT4.0 M.2 Combo Adapter
Subsystem: Hewlett-Packard Company BCM43142 802.11b/g/n [103c:804a]
--
09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 0a)
DeviceName: Realtek PCIe FE Family Controller
Subsystem: Hewlett-Packard Company RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [103c:8094]
Kernel driver in use: r8169
Kernel modules: r8169
michael@michael-HP-Pavilion-Notebook:~$ sudo lshw -C network
[sudo] password for michael:
*-network UNCLAIMED
description: Network controller
product: BCM43142 802.11b/g/n
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:08:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress cap_list
configuration: latency=0
resources: memory:c3100000-c3107fff
*-network
description: Ethernet interface
product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:09:00.0
logical name: eno1
version: 0a
serial: dc:4a:3e:e0:0e:61
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8107e-2_0.0.2 02/26/15 ip=192.168.0.104 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:48 ioport:3000(size=256) memory:c3004000-c3004fff memory:c3000000-c3003fff
michael@michael-HP-Pavilion-Notebook:~$

Quote:

Originally Posted by Ztcoracat (Post 5684562)

Is the driver for the BCM43142 installed?
lsmod will show all drivers:-

Looking at this output that our Moderator jefro mentions; suggest's that the BCM43X is blacklisted:-

Code:

/etc/modprobe.d/blacklist-ath_pci.conf]

blacklist ath_pci



[/etc/modprobe.d/blacklist-bcm43.conf]

blacklist b43

blacklist b43legacy

blacklist ssb

blacklist bcm43xx

-::-Also if the wrong driver is loading first it will cause the device not to work.-::-

Maybe try using a usb wifi dongle:-

http://www.wirelesshack.org/top-linu...-adapters.html

So what does blacklisted mean - that someone at Linux development blacklisted my wifi card?
Is this the end of the story and I have an $800 brick now?

Quote:

So what does blacklisted mean - that someone at Linux development blacklisted my wifi card?
Is this the end of the story and I have an $800 brick now?

I think what happened is somehow the Broadcom became blacklisted by default.
To solve that you should install the driver for your bcm43142 wifi card.

No, I don't think that you have a brick now.

The kernel driver for your wired PCI Realtek card is installed. Having said that your wired connection should be good. When you can use your wired connection to download the driver for your broadcom nic.

http://askubuntu.com/questions/76558...n-ubuntu-16-04

This article will give you knowledge and should help to get the broadcom firmware installed that you need.
https://help.ubuntu.com/community/Wi...Driver/bcm43xx

I didn't see the 4314 on that page so you may want to go directly to the Broadcom website.

I'm sorry I did see the bcm43142 here-
But it doesn't look like it's supported.

Quote:

14e4:4365 no BCM43142 b/g/n LCN40 (r3) wl

https://wireless.wiki.kernel.org/en/...ported_devices

Quote:

Originally Posted by Ztcoracat (Post 5684867)

I'm sorry I did see the bcm43142 here-
But it doesn't look like it's supported.

Hi all...

No, broadcom's proprietary "wl" driver supports it, just not the open source b43 driver.

Regards...

Hi Michael Piziak...

Take a look at the following two threads, perhaps they might be of help...

http://askubuntu.com/questions/40234...s-for-bcm43142

http://askubuntu.com/questions/45965...04-trusty-tahr

Regards...

Quote:

Originally Posted by ardvark71 (Post 5684877)

Hi all...

No, broadcom's proprietary "wl" driver supports it, just not the open source b43 driver.

Regards...

So how do I get the wl driver?

I reinstalled Windows on it from the factory and it works fine. So it's not the wifi card that is faulty in the laptop.

Quote:

Originally Posted by Michael Piziak (Post 5684891)

So how do I get the wl driver?

Look at post #25. ;)

Regards...

Post deleted by user.

Quote:

Originally Posted by ardvark71 (Post 5684882)

I finally learned how to get to the ok button and entered these 3 commands in Terminal. Here is the results

michael@michael-HP-Pavilion-Notebook:~$ sudo apt-get install --reinstall linux-headers-3.11.0-15-generic linux-headers-generic
[sudo] password for michael:
E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.
michael@michael-HP-Pavilion-Notebook:~$ sudo dpkg --configure -a
Setting up shim-signed (1.19~16.04.1+0.8-0ubuntu2) ...
Installing for x86_64-efi platform.
Installation finished. No error reported.
Processing triggers for initramfs-tools (0.122ubuntu8.8) ...
update-initramfs: Generating /boot/initrd.img-4.8.0-41-generic
W: Possible missing firmware /lib/firmware/i915/kbl_dmc_ver1_01.bin for module i915
michael@michael-HP-Pavilion-Notebook:~$ sudo apt-get install --reinstall bcmwl-kernel-source
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 81 not upgraded.
Need to get 0 B/1,544 kB of archives.
After this operation, 0 B of additional disk space will be used.
(Reading database ... 208948 files and directories currently installed.)
Preparing to unpack .../bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu1~1.1_amd64.deb ...
Removing all DKMS Modules
Done.
Unpacking bcmwl-kernel-source (6.30.223.271+bdcom-0ubuntu1~1.1) over (6.30.223.271+bdcom-0ubuntu1~1.1) ...
Setting up bcmwl-kernel-source (6.30.223.271+bdcom-0ubuntu1~1.1) ...
Loading new bcmwl-6.30.223.271+bdcom DKMS files...
Building only for 4.8.0-41-generic
Building for architecture x86_64
Building initial module for 4.8.0-41-generic
Done.

wl:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /lib/modules/4.8.0-41-generic/updates/dkms/

depmod....

DKMS: install completed.
modprobe: ERROR: could not insert 'wl': Required key not available
update-initramfs: deferring update (trigger activated)
Processing triggers for shim-signed (1.19~16.04.1+0.8-0ubuntu2) ...
Processing triggers for initramfs-tools (0.122ubuntu8.8) ...
update-initramfs: Generating /boot/initrd.img-4.8.0-41-generic
W: Possible missing firmware /lib/firmware/i915/kbl_dmc_ver1_01.bin for module i915
michael@michael-HP-Pavilion-Notebook:~$ sudo modprobe wl
modprobe: ERROR: could not insert 'wl': Required key not available
michael@michael-HP-Pavilion-Notebook:~$

Quote:

Originally Posted by jefro (Post 5684534)

https://www.reddit.com/r/linuxquesti...n_ubuntu_1604/

Although I kind of wonder about blacklisted blacklist bcm43xx

I ran the sudo commands in that link. Still doesn't work.