I've seen similar posts in this forum but none of them have worked for me. I recently adopted linux and the first couple of days my wifi was working fine but all of a sudden there is no way on earth to get it to work. I been reading a lot in the subject and found lots of similar issues on the internet. I don't think that many have been solved. Is there a way to actually get a driver for the rlt8822BE in ubuntu 20.04?
I have tried answers from the following posts:
https://github.com/lwfinger/rtw88
Still No wifi adapter for Realtek RTL8822BE found in 18.04
Wifi adapter not found Realtek R8822BE
Lenovo's Wifi RTL8822BE not working on Ubuntu 18.04
https://tutorialforlinux.com/2020/08/06/step-by-step-ubuntu-20-04-realtek-rtl8821ce-driver-installation/2/
I blacklisted conflicting drivers, tried installing a bunch of them, reinstalled linux from scratch several times, nothing seems to work.
Here is some useful information:
When running lshw -C network
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:08:00.0
logical name: enp8s0
version: 15
serial: e8:6a:64:bf:74:7b
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd
autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.13.0-27-generic duplex=full firmware=rtl8168h-2_0.0.2
02/26/15 ip=10.0.0.230 latency=0 link=yes multicast=yes port=twisted
pair speed=1Gbit/s
resources: irq:17 ioport:3000(size=256) memory:a4204000-a4204fff memory:a4200000-a4203fff
When running lsmod | grep rtw:
rtw_8822be 16384 0
rtw_8822b 225280 1 rtw_8822be
rtw_pci 24576 1 rtw_8822be
rtw_core 204800 2 rtw_8822b,rtw_pci
mac80211 1028096 2 rtw_core,rtw_pci
cfg80211 888832 2 rtw_core,mac80211
I think rtw_8822b should be blacklisted not sure if it is normal that is still appears in there.
Also, running lspci -nnk | grep 0280 -A3 results in the following (from where I found out I have the RLT8822BE network controller.
07:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter [10ec:b822] (rev ff)
Kernel modules: rtw_8822be
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]
Please let me know if you know something I can try.
Edit:
When running dmesg | grep -i rtw
[ 62.744521] rtw_core: loading out-of-tree module taints kernel.
[ 62.744605] rtw_core: module verification failed: signature and/or required key missing - tainting kernel
[ 62.760936] rtw_8822be 0000:07:00.0: Firmware version 27.2.0, H2C version 13
[ 62.821808] rtw_8822be 0000:07:00.0: failed to read hw feature report
[ 64.822026] rtw_8822be 0000:07:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[ 64.822030] rtw_8822be 0000:07:00.0: failed to setup chip efuse info
[ 64.822032] rtw_8822be 0000:07:00.0: failed to setup chip information
[ 64.852572] rtw_8822be: probe of 0000:07:00.0 failed with error -16
