Ask Ubuntu Asked by Diego Moreno on January 3, 2022
I have been working with Ubuntu 18.04 for several months now (with dual boot alongside Windows 10, which has no problems), and yesterday, out of nowhere, my Wi-Fi adapter stopped working (not listing anything) or stopped even showing.
There are A LOT of questions about this issue all over, but so far, nothing has worked for me. Here is what I have tried:
EDIT:
After a few reboots and using windows, I tried it again and now it shows the wireless adapter (as "DISABLED"):
lshw -C network
WARNING: you should run this program as super-user.
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:04:00.0
logical name: enp4s0
version: 10
serial: 64:1c:67:a9:cd:7c
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 firmware=rtl8168g-3_0.0.1 04/23/13 latency=0 link=no multicast=yes port=MII
resources: irq:16 ioport:3000(size=256) memory:a1304000-a1304fff memory:a1300000-a1303fff
*-generic DISABLED
description: Wireless interface
product: RTL8822BE 802.11a/b/g/n/ac WiFi adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:05:00.0
logical name: wlp5s0
version: ff
serial: c0:b5:d7:a2:1b:65
width: 32 bits
clock: 66MHz
capabilities: bus_master vga_palette cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtw_pci driverversion=5.4.0-42-generic firmware=N/A latency=255 link=no maxlatency=255 mingnt=255 multicast=yes wireless=IEEE 802.11
resources: irq:142 ioport:2000(size=256) memory:a1200000-a120ffff
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.
But I can actually see the Wi-Fi controller here:
sudo lspci
[...]
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
05:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter (rev ff)
07:00.0 Non-Volatile memory controller: SK hynix BC501 NVMe Solid State Drive 512GB
And the driver module for the RTL8822BE (rtw88) is visible too:
sudo lsmod
Module Size Used by
cpuid 16384 0
rfcomm 81920 16
cmac 16384 3
algif_hash 16384 1
algif_skcipher 16384 1
af_alg 24576 6 algif_hash,algif_skcipher
bnep 24576 2
nls_iso8859_1 16384 1
snd_sof_pci 20480 0
snd_sof_intel_hda_common 69632 1 snd_sof_pci
snd_soc_hdac_hda 24576 1 snd_sof_intel_hda_common
snd_sof_intel_hda 20480 1 snd_sof_intel_hda_common
snd_sof_intel_byt 20480 1 snd_sof_pci
snd_sof_intel_ipc 20480 1 snd_sof_intel_byt
snd_sof 106496 4 snd_sof_pci,snd_sof_intel_hda_common,snd_sof_intel_byt,snd_sof_intel_ipc
snd_sof_xtensa_dsp 16384 1 snd_sof_pci
snd_hda_codec_hdmi 61440 1
snd_hda_ext_core 28672 3 snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda
snd_soc_acpi_intel_match 32768 2 snd_sof_pci,snd_sof_intel_hda_common
snd_hda_codec_conexant 28672 1
snd_hda_codec_generic 81920 1 snd_hda_codec_conexant
snd_soc_acpi 16384 2 snd_sof_pci,snd_soc_acpi_intel_match
snd_soc_core 245760 3 snd_sof,snd_sof_intel_hda_common,snd_soc_hdac_hda
snd_compress 24576 1 snd_soc_core
ac97_bus 16384 1 snd_soc_core
snd_pcm_dmaengine 16384 1 snd_soc_core
x86_pkg_temp_thermal 20480 0
intel_powerclamp 20480 0
snd_hda_intel 53248 3
snd_intel_dspcfg 24576 3 snd_hda_intel,snd_sof_pci,snd_sof_intel_hda_common
coretemp 20480 0
snd_hda_codec 131072 5 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel,snd_soc_hdac_hda
uvcvideo 98304 0
kvm_intel 286720 0
kvm 663552 1 kvm_intel
videobuf2_vmalloc 20480 1 uvcvideo
videobuf2_memops 20480 1 videobuf2_vmalloc
snd_hda_core 90112 9 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_common 49152 2 videobuf2_v4l2,uvcvideo
thinkpad_acpi 110592 0
crct10dif_pclmul 16384 1
videodev 225280 3 videobuf2_v4l2,uvcvideo,videobuf2_common
ghash_clmulni_intel 16384 0
btusb 57344 0
mc 53248 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
aesni_intel 372736 4
nvram 16384 1 thinkpad_acpi
snd_hwdep 20480 1 snd_hda_codec
snd_pcm 106496 8 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_sof,snd_sof_intel_hda_common,snd_soc_core,snd_hda_core,snd_pcm_dmaengine
crypto_simd 16384 1 aesni_intel
cryptd 24576 3 crypto_simd,ghash_clmulni_intel
ledtrig_audio 16384 4 snd_hda_codec_generic,snd_hda_codec_conexant,snd_sof,thinkpad_acpi
snd_seq_midi 20480 0
rtwpci 24576 0
rtw88 610304 1 rtwpci
btrtl 24576 1 btusb
glue_helper 16384 1 aesni_intel
mei_hdcp 24576 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 36864 1 snd_seq_midi
snd_seq 69632 2 snd_seq_midi,snd_seq_midi_event
intel_rapl_msr 20480 0
btbcm 16384 1 btusb
input_leds 16384 0
joydev 24576 0
btintel 24576 1 btusb
mac80211 843776 2 rtwpci,rtw88
serio_raw 20480 0
intel_cstate 20480 0
intel_rapl_perf 20480 0
cfg80211 704512 2 mac80211,rtw88
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
snd_timer 36864 2 snd_seq,snd_pcm
bluetooth 581632 41 btrtl,btintel,btbcm,bnep,btusb,rfcomm
i915 1986560 14
libarc4 16384 1 mac80211
rtsx_pci_ms 24576 0
snd 90112 20 snd_hda_codec_generic,snd_seq,snd_hda_codec_conexant,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_timer,snd_compress,thinkpad_acpi,snd_soc_core,snd_pcm,snd_rawmidi
processor_thermal_device 24576 0
ecdh_generic 16384 2 bluetooth
intel_rapl_common 24576 2 intel_rapl_msr,processor_thermal_device
soundcore 16384 1 snd
int3403_thermal 16384 0
int340x_thermal_zone 16384 2 int3403_thermal,processor_thermal_device
intel_soc_dts_iosf 20480 1 processor_thermal_device
int3400_thermal 20480 0
acpi_thermal_rel 16384 1 int3400_thermal
ecc 28672 1 ecdh_generic
mei_me 40960 1
mei 106496 3 mei_hdcp,mei_me
drm_kms_helper 184320 1 i915
memstick 20480 1 rtsx_pci_ms
i2c_algo_bit 16384 1 i915
intel_pch_thermal 16384 0
fb_sys_fops 16384 1 drm_kms_helper
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
wmi_bmof 16384 0
intel_wmi_thunderbolt 20480 0
mac_hid 16384 0
ucsi_acpi 16384 0
typec_ucsi 40960 1 ucsi_acpi
typec 45056 1 typec_ucsi
acpi_pad 184320 0
sch_fq_codel 20480 2
parport_pc 40960 0
ppdev 24576 0
lp 20480 0
parport 53248 3 parport_pc,lp,ppdev
drm 491520 5 drm_kms_helper,i915
ip_tables 32768 0
x_tables 40960 1 ip_tables
autofs4 45056 2
hid_generic 16384 0
usbhid 57344 0
hid 131072 2 usbhid,hid_generic
rtsx_pci_sdmmc 28672 0
crc32_pclmul 16384 0
psmouse 155648 0
nvme 49152 1
r8169 90112 0
nvme_core 102400 3 nvme
i2c_i801 32768 0
ahci 40960 1
realtek 24576 1
rtsx_pci 69632 2 rtsx_pci_sdmmc,rtsx_pci_ms
libahci 32768 1 ahci
wmi 32768 2 intel_wmi_thunderbolt,wmi_bmof
video 49152 2 thinkpad_acpi,i915
pinctrl_cannonlake 36864 0
pinctrl_intel 28672 1 pinctrl_cannonlake
And even the driver is present:
ls /lib/firmware/rtlwifi/rtl8822befw.bin
/lib/firmware/rtlwifi/rtl8822befw.bin
and here:
ls /lib/firmware/rtw88/rtw8822b_fw.bin
/lib/firmware/rtw88/rtw8822b_fw.bin
I tried restarting the network service:
sudo service network-manager restart
I tried reinstalling Ubuntu 18.04 (3 times…) e and now Ubuntu 20.04. Nothing has worked…
And the weirdest thing is, when I am "trying Ubuntu 18.04" from a Bootable USB stick, Wi-Fi works just fine, I can even connect to my network during the installation process, but as soon as the installed version boots, it never works again.
Can anyone help me?
This is the result of ifconfig -a
enp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.86.215 netmask 255.255.255.0 broadcast 192.168.86.255
inet6 fe80::4454:48f6:fc28:db11 prefixlen 64 scopeid 0x20<link>
ether 64:1c:67:a9:cd:7c txqueuelen 1000 (Ethernet)
RX packets 13303 bytes 13329507 (13.3 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 11144 bytes 1302142 (1.3 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 2314 bytes 212337 (212.3 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2314 bytes 212337 (212.3 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp5s0: flags=4098<BROADCAST,MULTICAST> mtu 1500
ether c0:b5:d7:a2:1b:65 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Hi I tried following this:
https://help.ubuntu.com/stable/ubuntu-help/net-wireless-troubleshooting-hardware-check.html.en
Which was excellent but I couldn't get the RTL8822BE working. So this is my answer (first answer on the board if it's not allowed here please remove). I purchased another wifi/BT m.2 card for my laptop (Asus Vivobook).
I got this:
Intel Wireless-Ac 9260, 2230, 2X2 Ac+Bt, Gigabit, No Vpro. It says it was designed for 8th gen Intel processors which what my laptop has.
It was very straight forward. Remove and replace the card Connectors and Antennas all the same as the Realtek. Boot into either of my OS(s) W10 or Ubuntu and run updates, select my WiFi network and login in. It was $17usd
If you're really stuck I hope this helps.
Answered by Christine_Ubuntu on January 3, 2022
EDIT 2: I finally found a similar error described here (and a similar one here). After testing on my laptop, I could confirm that the problem happens only when I boot from the updated Linux ubuntu 5.4.0-42-generic kernel.
uname -a
Linux ubuntu 5.4.0-42-generic #46~18.04.1-Ubuntu SMP Fri Jul 10 07:21:24 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
dmesg | grep rtw
[ 10.321995] rtw_core: loading out-of-tree module taints kernel.
[ 10.322041] rtw_core: module verification failed: signature and/or required key missing - tainting kernel
[ 10.715315] rtw_8822be 0000:05:00.0: enabling device (0000 -> 0003)
[ 11.576504] rtw_8822be 0000:05:00.0: Firmware version 27.2.0, H2C version 13
[ 12.362399] rtw_8822be 0000:05:00.0 wlp5s0: renamed from wlan0
[ 154.000006] rtw_8822be 0000:05:00.0: failed to read ASPM, ret=-5
[ 154.003024] rtw_8822be 0000:05:00.0: failed to send h2c command
[ 154.147617] rtw_8822be 0000:05:00.0: firmware failed to restore hardware setting
[ 154.150646] rtw_8822be 0000:05:00.0: failed to send h2c command
To test out that this was the problem, I had to boot from a previous kernel (in my case the Linux ubuntu 5.3.0-28-generic). You can do that by rebooting the laptop, go into the Grub screen, choose Advanced options from Ubuntu and choosing a previous version to boot from. And after doing that, my Wi-Fi was working normally:
uname -a
Linux ubuntu 5.3.0-28-generic #30~18.04.1-Ubuntu SMP Fri Jan 17 06:14:09 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
dmesg | grep rtw
[ 12.777529] rtw_pci 0000:05:00.0: enabling device (0000 -> 0003)
[ 12.848050] rtw_pci 0000:05:00.0: pci msi enabled
[ 13.032126] rtw_pci 0000:05:00.0 wlp5s0: renamed from wlan0
lshw -C network
WARNING: you should run this program as super-user.
[...]
*-network
description: Wireless interface
product: RTL8822BE 802.11a/b/g/n/ac WiFi adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:05:00.0
logical name: wlp5s0
version: 00
serial: c0:b5:d7:a2:1b:65
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtw_pci driverversion=5.3.0-28-generic firmware=N/A ip=192.168.86.186 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:142 ioport:2000(size=256) memory:a1200000-a120ffff
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.
EDIT 1: this was just temporary. The problem is back.
Now it shows as:
lshw -C network
WARNING: you should run this program as super-user.
[...]
*-generic
description: Wireless interface
product: Illegal Vendor ID
vendor: Illegal Vendor ID
physical id: 0
bus info: pci@0000:05:00.0
logical name: wlp5s0
version: ff
serial: c0:b5:d7:a2:1b:65
width: 32 bits
clock: 66MHz
capabilities: bus_master vga_palette cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtw_8822be driverversion=5.4.0-42-generic firmware=N/A latency=255 link=no maxlatency=255 mingnt=255 multicast=yes wireless=IEEE 802.11
resources: irq:142 ioport:2000(size=256) memory:a1200000-a120ffff
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.
I am trying everything again, like this:
sudo make install
make -C /lib/modules/5.4.0-42-generic/build M=/home/diego/Downloads/rtw88 modules
make[1]: Entering directory '/usr/src/linux-headers-5.4.0-42-generic'
Building modules, stage 2.
MODPOST 10 modules
make[1]: Leaving directory '/usr/src/linux-headers-5.4.0-42-generic'
Install rtw88 SUCCESS
But it is still not working.
FIRST ANSWER:
I don't why or how this problem appeared, but here is how I fixed it:
After reinstalling Ubuntu 18.04 3 times and Ubuntu 20.04 1 time (all alongside Windows 10 as dual boot), I deleted the Ubuntu partition (from Windows disk manager), reincorporated the unused space to the Windows partition and rebooted. After that I noticed the GNU GRUB was still active at every boot. So I followed these steps to removed everything from Ubuntu until my laptop was just like it was before I installed Ubuntu for the first time. With just Windows 10.
So I just installed Ubuntu 18.04 (again alongside Windows 10 as dual boot) and now everything works just fine. That's it.
Answered by Diego Moreno on January 3, 2022
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