No wifi adapter found usb

Ask Fedora
1

hi.

I’ve installed fedora and i have the very common error of “no wifi adapter found”.

here is my lsusb:
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 046d:c332 Logitech, Inc. G502 Proteus Spectrum Optical Mouse
Bus 003 Device 003: ID 0bda:b82c Realtek Semiconductor Corp. 802.11ac NIC
Bus 003 Device 002: ID 1532:0214 Razer USA, Ltd BlackWidow Ultimate 2016
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 2717:ff80 Xiaomi Inc. Mi/Redmi series (RNDIS)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

my card is detected. It is this one:
Bus 003 Device 003: ID 0bda:b82c Realtek Semiconductor Corp. 802.11ac NIC

so I installed fedy and downloaded “Broadcom 802.11 STA driver” from there but still no luck… After reboot i still have the error.

Anybody knows what i did wrong ?
Thank you.

2

Based on 0bda:b82c the device appears to be a combination bluetooth and wifi adapter.
It could be any of these:
https://www.realtek.com/en/products/communications-network-ics/category/802-11ac-abgn-combo
The actual RTL* name probably is written on the box it came in or on the device itself. It would help to reply with that name. It will be something like RTL8822BU or RTL8822BE

Switching the device between bluetooth and wifi modes might be necessary.

Background information:

Potential driver:

1 Like
3

One more thing. If you can’t handle all of that, put your device in storage and wait for a kernel that supports it to be released.
You can buy a nice compatible device. I’m using these

148f:7601 Ralink Technology, Corp. MT7601U Wireless Adapter
148f:5372 Ralink Technology, Corp. RT5372 Wireless Adapter
148f:3572 Ralink Technology, Corp. RT3572 Wireless Adapter
4

thanks.
I don’t have the box and the name is not written on the device unfortunatly. However i tried the command
sudo dkms status and it gives this:
8812au/5.6.4.2_35491.20191025, 5.10.92-200.fc36.x86_64, x86_64: installed
8812au/5.6.4.2_35491.20191025, 5.19.4-201.fsync.fc36.x86_64, x86_64: installed

so it is RTL8812AU right ?

5

I would prefer to make this one work of course but if i can’t i’ll look for those thanks!

6

also i found this GitHub - morrownr/88x2bu: Linux Driver for USB WiFi Adapters that are based on the RTL8812BU and RTL8822BU Chipsets
it looks like it is the good driver right ?

oh and i also found this : wifi_chipset_realtek_rtl8812au [Wiki ubuntu-fr]

7

It might be. I only listed some potential drivers.
To use an out-of-kernel driver see dkms and dracut

8

ok i found the solution. The driver is GitHub - morrownr/88x2bu: Linux Driver for USB WiFi Adapters that are based on the RTL8812BU and RTL8822BU Chipsets
just follow the instruction.
Thank you sir for your help!