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I have a brand new Ideapad 5 (model 15ABA7) with a fresh install of Debian. I am struggling to get wifi to work as it seems linux isn't recognizing the wlan adapter. The only networking device that shows up in lspci is the ethernet adapter.

$ lspci | grep Network
01:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device b852

No wlan adapter is detected by nmcli:

$ nmcli device show
GENERAL.DEVICE:                         lo
GENERAL.TYPE:                           loopback
GENERAL.HWADDR:                         00:00:00:00:00:00
GENERAL.MTU:                            65536
GENERAL.STATE:                          10 (unmanaged)
GENERAL.CONNECTION:                     --
GENERAL.CON-PATH:                       --
IP4.ADDRESS[1]:                         127.0.0.1/8
IP4.GATEWAY:                            --
IP6.ADDRESS[1]:                         ::1/128
IP6.GATEWAY:                            --
IP6.ROUTE[1]:                           dst = ::1/128, nh = ::, mt = 256

Output of lshw:

$ lshw -class network
  *-network UNCLAIMED
       description: Network controller
       product: Realtek Semiconductor Co., Ltd.
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: cap_list
       configuration: latency=0
       resources: ioport:2000(size=256) memory:fd600000-fd6fffff
  *-network
       description: Ethernet interface
       physical id: 1
       bus info: usb@2:1
       logical name: enx606d3cbc9fcf
       serial: 60:6d:3c:bc:9f:cf
       size: 1Gbit/s
       capacity: 1Gbit/s
       capabilities: ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8152 driverversion=v2.16.3 (2022/07/06) duplex=full ip=192.168.0.19 link=yes multicast=yes port=MII speed=1Gbit/s

The wireless adapter is supposedly a RTL8822BE. WiFi worked in windows so I don't think it is a hardware functionality problem.

Things I have tried:

  • installed firmware-realtek package
  • installed rtw89 driver from lwfinger
  • cmos reboot (hold power button down for 60 seconds)
  • secure boot is disabled (first thing I did before debian install)

To no avail. Anyone else get wifi working with this chipset?

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I just got mine working. It's not rtw89 but rtl8852be as found here: https://github.com/HRex39/rtl8852be

(seems the chip is a realtek 8852be, though it just says "b852").

I'd already installed the dependencies as listed on https://github.com/lwfinger/rtw89 so you may or may not need those first.

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  • I ended up buying and installing an intel AX200 and it worked with the iwlwifi firmware package out of the box. It's a shame that realtek devices require community drivers from non-name github pages to work.
    – Treeman
    Oct 17, 2022 at 16:57

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