Problems installing wifi driver on Debian 9

Question

I have Lenovo Legion y530 laptop. I try to turn on wifi this way:

type lspci -nn | grep Network, see this wireless adapter:

Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b822]

and by [10ec:b822] I find this driver on drivers.ru, that's

Realtek 8822BE Wireless LAN 802.11ac PCI-E NIC

but there is no wifi icon in system tray, dispite the fact that network-manager-gnome installed. Okay, I update kernel to 4.19.16 as says here. After reboot, icon appears, but it says wifi off & unawaitable. By loading, log says:

failed to load rtlwifi/rtl8822befw.bin (-2)

okay, I downloaded file rtl8822befw.bin & put it into folder /lib/firmware/rtlwifi, as says here, than reboot. sign about fail to load rtlwifi disappears, but wifi still not awaitable.

What will advice to do after?

UPD: when I typing

lspci -knn | grep Net -A3

terminal returns

07:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b822]
    Subsystem: Lenovo Device [17aa:b023]
08:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
    Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [17aa:38b4]

what is the output of `sudo modprobe -rv r8822be ; sudo modprobe -v r8822be` , it should print `insmod .. r8822be.ko` , no? — GAD3R, Jun 17 '19 at 20:32

score 0 · Answer 1 · answered Jan 12 '23 at 20:20

This is known kernel bug for that specific Wifi driver. The simple fix if your laptop is dual booted is to reboot into windows then into Linux again.
The kernel bug
There have been fixes that turn off the ability to put it into low power state but I have noot tried it myself (although I do in fact have the same problem). More info about them can be found here

Problems installing wifi driver on Debian 9

1 Answers1