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

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Can't get wirless to work

Ubuntu 16.04

Wireless quit connecting on HP Laptop but can still be seen by iPhone.

I previously turned off "disable secure boot" which solved this for about a year. I don't see "disable secure boot" in the Bios now.

And how do I get my computer to scan for new wifi networks?

Code:

sudo ifconfig

look for your wifi card and look for the key word UP or DOWN
here is a how to wifi command line
https://www.linux.com/learn/how-conf...-linux-desktop

michael@michael-HP-Pavilion-Notebook:~$ sudo ifconfig
[sudo] password for michael:
eno1 Link encap:Ethernet HWaddr dc:4a:3e:e0:0e:61
inet addr:192.168.254.33 Bcast:192.168.254.255 Mask:255.255.255.0
inet6 addr: fe80::a6c0:eace:462e:d2e5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:84301 errors:0 dropped:0 overruns:0 frame:0
TX packets:64225 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:88808052 (88.8 MB) TX bytes:10624444 (10.6 MB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:2452 errors:0 dropped:0 overruns:0 frame:0
TX packets:2452 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:237915 (237.9 KB) TX bytes:237915 (237.9 KB)

michael@michael-HP-Pavilion-Notebook:~$

it is not showing a wifi nic
unless your system uses eno1 for wifi and not wlan0 ..read the links to get the commands to check and bring up your system.

Have you check to see if wireless is disabled? First thing to check is wireless switch, or more often via Fn key.

The rfkill utility can also be useful here...
http://manpages.ubuntu.com/manpages/.../rfkill.8.html
https://wiki.archlinux.org/index.php...#Rfkill_caveat

Network hardware and driver details could be useful...

Code:

lspci -nnk | grep -iA2 net

and oops their is 'rfkill list' to see if it is being blocked.

(nm someone else brought it up, just caught that, after post)

Quote:

Originally Posted by ferrari (Post 5811468)

Network hardware and driver details could be useful...

Code:

lspci -nnk | grep -iA2 net

michael@michael-HP-Pavilion-Notebook:~$ lspci -nnk | grep -iA2 net
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:~$

Check that there is a driver loaded for your Broadcom wireless device. The command I gave was designed to only spit out the first couple of lines.

To get first 3 lines do

Code:

lspci -nnk | grep -iA3 net

or just do this and look for the output block pertaining to your wireless device.

Code:

lspci -nnk

Quote:

Originally Posted by ferrari (Post 5811476)

Check that there is a driver loaded for your Broadcom wireless device. The command I gave was designed to only spit out the first couple of lines.

To get first 3 lines do

Code:

lspci -nnk | grep -iA3 net

or just do this and look for the output block pertaining to your wireless device.

Code:

lspci -nnk

michael@michael-HP-Pavilion-Notebook:~$ lspci -nnk
00:00.0 Host bridge [0600]: Intel Corporation Broadwell-U Host Bridge -OPI [8086:1604] (rev 09)
Subsystem: Hewlett-Packard Company Broadwell-U Host Bridge -OPI [103c:8094]
Kernel driver in use: bdw_uncore
00:02.0 VGA compatible controller [0300]: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09)
DeviceName: Intel(R) Graphics GT2
Subsystem: Hewlett-Packard Company Broadwell-U Integrated Graphics [103c:8094]
Kernel driver in use: i915
Kernel modules: i915
00:03.0 Audio device [0403]: Intel Corporation Broadwell-U Audio Controller [8086:160c] (rev 09)
Subsystem: Hewlett-Packard Company Broadwell-U Audio Controller [103c:8094]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:04.0 Signal processing controller [1180]: Intel Corporation Broadwell-U Camarillo Device [8086:1603] (rev 09)
Subsystem: Hewlett-Packard Company Broadwell-U Processor Thermal Subsystem [103c:8094]
Kernel driver in use: proc_thermal
Kernel modules: processor_thermal_device
00:14.0 USB controller [0c03]: Intel Corporation Wildcat Point-LP USB xHCI Controller [8086:9cb1] (rev 03)
Subsystem: Hewlett-Packard Company Wildcat Point-LP USB xHCI Controller [103c:8094]
Kernel driver in use: xhci_hcd
00:16.0 Communication controller [0780]: Intel Corporation Wildcat Point-LP MEI Controller #1 [8086:9cba] (rev 03)
Subsystem: Hewlett-Packard Company Wildcat Point-LP MEI Controller [103c:8094]
Kernel driver in use: mei_me
Kernel modules: mei_me
00:1b.0 Audio device [0403]: Intel Corporation Wildcat Point-LP High Definition Audio Controller [8086:9ca0] (rev 03)
Subsystem: Hewlett-Packard Company Wildcat Point-LP High Definition Audio Controller [103c:8094]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:1c.0 PCI bridge [0604]: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 [8086:9c90] (rev e3)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.1 PCI bridge [0604]: Intel Corporation Wildcat Point-LP PCI Express Root Port #2 [8086:9c92] (rev e3)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.2 PCI bridge [0604]: Intel Corporation Wildcat Point-LP PCI Express Root Port #3 [8086:9c94] (rev e3)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.3 PCI bridge [0604]: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 [8086:9c96] (rev e3)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1f.0 ISA bridge [0601]: Intel Corporation Wildcat Point-LP LPC Controller [8086:9cc3] (rev 03)
Subsystem: Hewlett-Packard Company Wildcat Point-LP LPC Controller [103c:8094]
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich
00:1f.2 SATA controller [0106]: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] [8086:9c83] (rev 03)
Subsystem: Hewlett-Packard Company Wildcat Point-LP SATA Controller [AHCI Mode] [103c:8094]
Kernel driver in use: ahci
Kernel modules: ahci
00:1f.3 SMBus [0c05]: Intel Corporation Wildcat Point-LP SMBus Controller [8086:9ca2] (rev 03)
Subsystem: Hewlett-Packard Company Wildcat Point-LP SMBus Controller [103c:8094]
Kernel modules: i2c_i801
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:~$

Ubuntutututututututu How to install broadcom drivers.
https://askubuntu.com/questions/5586...reless-drivers

Yep, no driver loaded. Refer to Ubuntu guide as BW-userx has linked to.

Actually, this guide may be better
https://help.ubuntu.com/community/Wi...Driver/bcm43xx

In particular, for the Broadcom STA Wireless driver (Proprietary)...
https://help.ubuntu.com/community/Wi...Proprietary.29
https://help.ubuntu.com/community/Wi...ng_STA_drivers

I'm not an Ubuntu user, but I note that the Broadcom readme file mentions that a pre-compiled driver exists...

Quote:

PRECOMPILED DRIVER
-------------------
Some distros (Ubuntu and Fedora at the least) already have a version of
this driver in their repositories precompiled, tested and ready to go.
You just use the package manager to install the proper package. If
its available for your distro, this is usually an easier solution. See
the end of this document for further discussion.

so perhaps all that is needed is to follow the instructions they give here

Quote:

Ubuntu:
------
Go to System->Administration->Hardware Drivers
Choose the Broadcom STA wireless driver
Activate

Sometimes the driver does not show up in the Hardware Drivers choices. In
this case, try reintalling the driver from the GUI or shell like this:

From the GUI:
Package Manager (System>Administration>Synaptic Package Manager). Click the
Reload button in the upper left corner of Synaptic to refresh your index then
search for and reinstall the package named bcmwl-kernel-source.

From the shell:
sudo apt-get update
sudo apt-get --reinstall install bcmwl-kernel-source

In either GUI or text case, after reinstalling, reboot your machine.

Now go back to System->Administration->Hardware Drivers
and you should see the driver enabled and working.

Quote:

Originally Posted by ferrari (Post 5811485)

Perhaps you guys can help me through this.

I did this to start it off. What do I type into terminal next?

michael@michael-HP-Pavilion-Notebook:~$ lspci -vvnn | grep -A 9 Network
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]
Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 255
Region 0: Memory at c3100000 (64-bit, non-prefetchable) [size=32K]
Capabilities: <access denied>

09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 0a)
michael@michael-HP-Pavilion-Notebook:~$