WLAN Card not detected (Linux Mint 20 XFCE and Noob user)

[Mathilda]

Hello,

I recently installed Linux mint 20 on my Asus transformer book T 200 TA. After a lot of struggling with the installation itself, I finally managed to make it work. Only one problem remains: the Wi-Fi doesn't work. I can only connect to the Internet by using USB tethering on my phone. It seems like Bluetooth isn't working either. I have installed all the drivers, updated my system multiple times, and researched my problem online and tried many solutions – all the solutions that I found – but it seems like the wireless card is not detected.
I know my wireless card is a Broadcom, but I don't know for sure which model, because as my system cannot detect it I cannot see the detailed information about this card. Maybe there's a command line that I don't know I should use to see the wireless card information. I installed the drivers that were recommended to people with similar problems and similar machines, such as the T100, as this problem seems to be a recurring one across Transformer Books, but no success.

Some additional info, in case that's relevant:
Results from the inxi command line:
CPU: Quad Core Intel Atom Z3775 (-MCP-) speed/min/max: 1517/533/2399 MHz Kernel: 5.4.0-48-generic x86_64 Up: 1h 35m Mem: 1235.4/1873.6 MiB (65.9%) Storage: 494.89 GiB (2.7% used) Procs: 231 Shell: bash 5.0.17 inxi: 3.0.38

Results from lspci:
00:00.0 Host bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register (rev 0d)
00:02.0 VGA compatible controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0d)
00:14.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI (rev 0d)
00:1a.0 Encryption controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine (rev 0d)
00:1f.0 ISA bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Power Control Unit (rev 0d)

I'm not super fluent in Linux but from what I understand my wireless card isn't even showing in those lists. When I click on the network manager icon, the only options I have are Ethernet network (Realtek RTL 8152) or Ethernet Network via my phone (which I am using right now). It looks like Wi-Fi doesn't even exist on this computer. I should add that the Wi-Fi worked fine when this laptop was still running Windows 8.

Thanks in advance for your help, and let me know if I should provide additional detail.

[dorsetUK]

Hello,

I recently installed Linux mint 20 on my Asus transformer book T 200 TA.

Hi Mathilda and welcome to the forums.

Thanks for trying to solve your problem, but a bit more info is needed. Larry78723 does it very well.

Please post the results for each of the following commands. Here is how:

Open a terminal window (Ctrl-Alt-t). Make it fullscreen to avoid unneeded linebreaks or chopped lines. Execute the following commands, one at a time.

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inxi -Fxxxz

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mokutil --sb-state	

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rfkill list all

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 iwconfig

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lsusb

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 lspci 

Mark the complete text output which each command will display with your mouse.
Press the keyboard shortcut <Shift><Ctrl>C to copy the marked text into the clipboard.
Enclose the results for each command between the code markers by selecting </> from the mini toolbar above the textbox where you type your reply then paste <Ctrl>V them in your reply between the code markers.

The results will help us to help you.

Larry

Cheers Larry.

If you can do that please.

[Mathilda]

Hi Mathilda and welcome to the forums.

Thanks for trying to solve your problem, but a bit more info is needed.

Thank you for your reply! Here is the additional info you needed:

inxi -Fxxxz

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mathilde@mathilde-T200TA:~$ inxi -Fxxxz
System:
  Kernel: 5.4.0-48-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 
  Desktop: Xfce 4.14.2 tk: Gtk 3.24.13 info: xfce4-panel wm: xfwm4 
  dm: LightDM 1.30.0 Distro: Linux Mint 20 Ulyana base: Ubuntu 20.04 focal 
Machine:
  Type: Laptop System: ASUSTeK product: T200TA v: 1.0 serial: <filter> 
  Mobo: ASUSTeK model: T200TA v: 1.0 serial: <filter> 
  UEFI: American Megatrends v: T200TA.205 date: 09/01/2014 
Battery:
  ID-1: BATC charge: 5.9 Wh condition: 7.7/19.0 Wh (40%) volts: 7.3/3.8 
  model: Intel SR 1 SR Real Battery type: Li-ion serial: <filter> 
  status: Discharging cycles: 580 
CPU:
  Topology: Quad Core model: Intel Atom Z3775 bits: 64 type: MCP 
  arch: Silvermont rev: 8 L2 cache: 1024 KiB 
  flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 11733 
  Speed: 1192 MHz min/max: 533/2399 MHz Core speeds (MHz): 1: 533 2: 533 
  3: 1217 4: 766 
Graphics:
  Device-1: Intel Atom Processor Z36xxx/Z37xxx Series Graphics & Display 
  vendor: ASUSTeK driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:0f31 
  Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: fbdev,vesa 
  resolution: 1366x768~60Hz 
  OpenGL: renderer: Mesa DRI Intel HD Graphics (BYT) v: 4.2 Mesa 20.0.8 
  compat-v: 3.0 direct render: Yes 
Audio:
  Device-1: Intel HDMI/DP LPE Audio driver: HdmiLpeAudio 
  message: bus/chip ids unavailable 
  Device-2: bytcr-rt5640 driver: bytcr-rt5640 
  message: bus/chip ids unavailable 
  Sound Server: ALSA v: k5.4.0-48-generic 
Network:
  Message: No Device data found. 
  Device-1: Samsung GT-I9070 (network tethering USB debugging enabled) 
  type: USB driver: rndis_host bus ID: 1-4.1:6 chip ID: 04e8:6864 
  serial: <filter> 
  IF: usb0 state: unknown speed: N/A duplex: N/A mac: <filter> 
  Device-2: Realtek RTL8152 Fast Ethernet Adapter type: USB driver: r8152 
  bus ID: 1-4.3:4 chip ID: 0bda:8152 serial: <filter> 
  IF: enx7824afc6bf8a state: down mac: <filter> 
Drives:
  Local Storage: total: 494.89 GiB used: 13.64 GiB (2.8%) 
  ID-1: /dev/mmcblk2 model: HBG4e size: 29.12 GiB serial: <filter> rev: 0x7 
  scheme: GPT 
  ID-2: /dev/sda type: USB vendor: HGST (Hitachi) model: HTS545050A7E680 
  size: 465.76 GiB rotation: 5400 rpm serial: <filter> scheme: GPT 
Partition:
  ID-1: / size: 28.05 GiB used: 13.63 GiB (48.6%) fs: ext4 
  dev: /dev/mmcblk2p2 
Sensors:
  System Temperatures: cpu: 45.0 C mobo: N/A 
  Fan Speeds (RPM): N/A 
Info:
  Processes: 218 Uptime: 12m Memory: 1.83 GiB used: 1.18 GiB (64.6%) 
  Init: systemd v: 245 runlevel: 5 Compilers: gcc: 9.3.0 alt: 9 Shell: bash 
  v: 5.0.17 running in: xfce4-terminal inxi: 3.0.38 
mathilde@mathilde-T200TA:~$ 

mokutil --sb-state

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mathilde@mathilde-T200TA:~$ mokutil --sb-state
bash: mokutil: command not found
mathilde@mathilde-T200TA:~$ 

rfkill list all

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mathilde@mathilde-T200TA:~$ rfkill list all
0: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
mathilde@mathilde-T200TA:~$ 

iwconfig

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mathilde@mathilde-T200TA:~$ iwconfig
usb0      no wireless extensions.

lo        no wireless extensions.

enx7824afc6bf8a  no wireless extensions.

mathilde@mathilde-T200TA:~$ 

lsusb

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mathilde@mathilde-T200TA:~$ lsusb
Bus 002 Device 003: ID 0b05:1800 ASUSTek Computer, Inc. 
Bus 002 Device 002: ID 0b05:1801 ASUSTek Computer, Inc. ASM1074
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0bda:8152 Realtek Semiconductor Corp. RTL8152 Fast Ethernet Adapter
Bus 001 Device 006: ID 04e8:6864 Samsung Electronics Co., Ltd GT-I9070 (network tethering, USB debugging enabled)
Bus 001 Device 003: ID 0b05:1802 ASUSTek Computer, Inc. ASM1074
Bus 001 Device 002: ID 0b05:17e0 ASUSTek Computer, Inc. ASUS Base Station.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
mathilde@mathilde-T200TA:~$ 

lspci

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mathilde@mathilde-T200TA:~$ lspci
00:00.0 Host bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register (rev 0d)
00:02.0 VGA compatible controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0d)
00:14.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI (rev 0d)
00:1a.0 Encryption controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine (rev 0d)
00:1f.0 ISA bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Power Control Unit (rev 0d)
mathilde@mathilde-T200TA:~$ 

[sleeper12]

Does that machine have an airplane key (Fn & F2?) to turn wifi on?

[Larry78723]

@mathilda - You are correct that your wifi card, which also handles bluetooth, is not being detected. I would suggest getting a wifi dongle that is linux compatible as it appears that your wifi card is dead.

[sleeper12]

Hi Larry,

That may be, but he did say wifi was working on Windows.

[Mathilda]

Thank you both for your replies.

by sleeper12 » Wed Oct 07, 2020 5:30 pm

Does that machine have an airplane key (Fn & F2?) to turn wifi on?

Yes, it does. All the FN commands work except for that one.

by Larry78723 » Wed Oct 07, 2020 5:36 pm

@mathilda - You are correct that your wifi card, which also handles bluetooth, is not being detected. I would suggest getting a wifi dongle that is linux compatible as it appears that your wifi card is dead.

As @sleeper12 said, it used to work fine with Win8.1. I have read that Broadcom wireless cards can give a lot of trouble with Linux. The problem is, I cannot even know which model of Broadcom card I have because it appears nowhere when I run commands. This may sound like a stupid question,, but is it possible that I killed my wireless card during the installation?
Before switching to Linux Mint, I had installed Fedora, and I was having the exact same problem. I thought it was because I did not know how to use Fedora, and I was unable to find solutions. So I got frustrated and switched to Linux Mint, because I'm more familiar with it, and thought that the Driver Manager would help me. No luck, unfortunately. And since I struggled a lot with this install, I'm wondering if my LM install went wrong somehow, and broke parts of my system.

[Larry78723]

OK Mathilda, let's try this. Boot from your install media (USB/DVD) and see if wifi is working and let us know.

[JeremyB]

Those have SDIO cards, post results for

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dmesg | grep brcm

[Larry78723]

@JeremyB - Thanks for jumping in, I was at wits end.

[sleeper12]

Me too, I thought it was either a dead card or dead airplane key.