I have Lenovo Legion y530 laptop. I try to turn on wifi this way:
lspci -nn | grep Network, see this wireless adapter:
Network controller : 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
07:00.0 Network controller : Realtek Semiconductor Co., Ltd. Device [10ec:b822] Subsystem: Lenovo Device [17aa:b023] 08:00.0 Ethernet controller : 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]