#1 Le 23/12/2020, à 12:39
- atomos
[Résolu] Ubuntu 20.04.1 LTS RTL8821CE adaptateur de wi-fi trouvé ??
bonjour,
j ai installé Ubuntu et cela fait déjà un certain temps que
je cherche à régler le fait que Ubuntu ne trouve pas la carte wifi de mon ordinateur (je pense).
Merci de bien vouloir éclairer ma lanterne 
.
Voici mon wificheck.log
[code]
>> lsb_release -a
Distributor ID: Ubuntu
Description: Ubuntu 20.04.1 LTS
Release: 20.04
Codename: focal
>> lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 13d3:56dd IMC Networks USB2.0 HD UVC WebCam
Bus 001 Device 004: ID 13d3:3530 IMC Networks Bluetooth Radio
Bus 001 Device 007: ID 0846:9041 NetGear, Inc. WNA1000M 802.11bgn [Realtek RTL8188CUS]
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]
DeviceName: WLAN
Subsystem: AzureWave RTL8821CE 802.11ac PCIe Wireless Network Adapter [1a3b:3041]
Kernel modules: rtl8821ce
02:00.0 Non-Volatile memory controller [0108]: Intel Corporation SSD 660P Series [8086:f1a8] (rev 03)
Subsystem: Intel Corporation SSD 660P Series [8086:390d]
>> sudo lshw -C network
*-network NON-RÉCLAMÉ
description: Network controller
produit: RTL8821CE 802.11ac PCIe Wireless Network Adapter
fabricant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:01:00.0
version: 00
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress cap_list
configuration : latency=0
ressources : portE/S:3000(taille=256) mémoire:b1200000-b120ffff
*-network
description: Interface réseau sans fil
identifiant matériel: 1
information bus: usb@1:1
nom logique: wlx4c60de5d8297
numéro de série: 4c:60:de:5d:82:97
fonctionnalités: ethernet physical wireless
configuration : broadcast=yes driver=rtl8192cu driverversion=5.4.0-58-generic firmware=N/A ip=192.168.1.22 link=yes multicast=yes wireless=IEEE 802.11
>> lsmod | sort
8250_dw 16384 0
ac97_bus 16384 1 snd_soc_core
acpi_pad 184320 0
acpi_tad 16384 0
acpi_thermal_rel 16384 1 int3400_thermal
aesni_intel 372736 20
af_alg 24576 22 algif_hash,algif_skcipher
ahci 40960 0
algif_hash 16384 5
algif_skcipher 16384 5
asus_nb_wmi 32768 0
asus_wmi 32768 1 asus_nb_wmi
autofs4 45056 2
bluetooth 548864 41 btrtl,btintel,btbcm,bnep,btusb,rfcomm
bnep 24576 2
btbcm 16384 1 btusb
btintel 24576 1 btusb
btrfs 1257472 0
btrtl 24576 1 btusb
btusb 57344 0
ccm 20480 6
cfg80211 704512 2 rtlwifi,mac80211
cmac 16384 11
coretemp 20480 0
cqhci 28672 1 sdhci_pci
crc32_pclmul 16384 0
crct10dif_pclmul 16384 1
cryptd 24576 7 crypto_simd,ghash_clmulni_intel
crypto_simd 16384 1 aesni_intel
drm 491520 10 drm_kms_helper,i915
drm_kms_helper 184320 1 i915
dw_dmac 16384 0
dw_dmac_core 28672 1 dw_dmac
ecc 28672 1 ecdh_generic
ecdh_generic 16384 2 bluetooth
fb_sys_fops 16384 1 drm_kms_helper
ghash_clmulni_intel 16384 0
glue_helper 16384 1 aesni_intel
hfs 61440 0
hfsplus 110592 0
hid 131072 3 i2c_hid,hid_multitouch,hid_generic
hid_generic 16384 0
hid_multitouch 28672 0
i2c_algo_bit 16384 1 i915
i2c_hid 28672 0
i2c_i801 32768 0
i915 1986560 29
idma64 20480 0
input_leds 16384 0
int3400_thermal 20480 0
int3403_thermal 20480 0
int340x_thermal_zone 16384 2 int3403_thermal,processor_thermal_device
intel_cstate 20480 0
intel_lpss 16384 1 intel_lpss_pci
intel_lpss_pci 20480 2
intel_powerclamp 20480 0
intel_rapl_common 24576 2 intel_rapl_msr,processor_thermal_device
intel_rapl_msr 20480 0
intel_soc_dts_iosf 20480 1 processor_thermal_device
ip_tables 32768 0
jfs 188416 0
joydev 24576 0
kvm 663552 1 kvm_intel
kvm_intel 282624 0
ledtrig_audio 16384 3 snd_hda_codec_generic,snd_hda_codec_realtek,snd_sof
libahci 32768 1 ahci
libarc4 16384 1 mac80211
libcrc32c 16384 2 btrfs,xfs
lp 20480 0
mac80211 843776 4 rtl_usb,rtl8192cu,rtlwifi,rtl8xxxu
mac_hid 16384 0
mc 53248 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
mei 106496 3 mei_hdcp,mei_me
mei_hdcp 24576 0
mei_me 40960 1
minix 36864 0
Module Size Used by
msdos 20480 0
nls_iso8859_1 16384 1
ntfs 106496 0
nvme 49152 2
nvme_core 102400 4 nvme
parport 53248 3 parport_pc,lp,ppdev
parport_pc 40960 0
pinctrl_cannonlake 36864 2
pinctrl_intel 28672 2 pinctrl_cannonlake
ppdev 24576 0
processor_thermal_device 24576 0
qnx4 16384 0
raid6_pq 114688 1 btrfs
rapl 20480 0
rfcomm 81920 16
rtl8192c_common 53248 1 rtl8192cu
rtl8192cu 73728 0
rtl8xxxu 131072 0
rtl_usb 20480 1 rtl8192cu
rtlwifi 90112 3 rtl8192c_common,rtl_usb,rtl8192cu
sch_fq_codel 20480 5
sdhci 65536 1 sdhci_pci
sdhci_pci 53248 0
serio_raw 20480 0
snd 90112 25 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi
snd_compress 24576 1 snd_soc_core
snd_hda_codec 135168 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek,snd_soc_hdac_hda
snd_hda_codec_generic 81920 1 snd_hda_codec_realtek
snd_hda_codec_hdmi 61440 1
snd_hda_codec_realtek 126976 1
snd_hda_core 90112 9 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda
snd_hda_ext_core 28672 3 snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda
snd_hda_intel 53248 6
snd_hwdep 20480 1 snd_hda_codec
snd_intel_dspcfg 24576 3 snd_hda_intel,snd_sof_pci,snd_sof_intel_hda_common
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
snd_pcm_dmaengine 16384 1 snd_soc_core
snd_rawmidi 36864 1 snd_seq_midi
snd_seq 69632 2 snd_seq_midi,snd_seq_midi_event
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
snd_seq_midi 20480 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_soc_acpi 16384 2 snd_sof_pci,snd_soc_acpi_intel_match
snd_soc_acpi_intel_match 32768 2 snd_sof_pci,snd_sof_intel_hda_common
snd_soc_core 245760 3 snd_sof,snd_sof_intel_hda_common,snd_soc_hdac_hda
snd_soc_hdac_hda 24576 1 snd_sof_intel_hda_common
snd_sof 106496 4 snd_sof_pci,snd_sof_intel_hda_common,snd_sof_intel_byt,snd_sof_intel_ipc
snd_sof_intel_byt 20480 1 snd_sof_pci
snd_sof_intel_hda 20480 1 snd_sof_intel_hda_common
snd_sof_intel_hda_common 69632 1 snd_sof_pci
snd_sof_intel_ipc 20480 1 snd_sof_intel_byt
snd_sof_pci 20480 0
snd_sof_xtensa_dsp 16384 1 snd_sof_pci
snd_timer 36864 2 snd_seq,snd_pcm
soundcore 16384 1 snd
sparse_keymap 16384 1 asus_wmi
spi_pxa2xx_platform 28672 0
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
ufs 81920 0
uvcvideo 98304 0
video 49152 2 asus_wmi,i915
videobuf2_common 49152 2 videobuf2_v4l2,uvcvideo
videobuf2_memops 20480 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_vmalloc 20480 1 uvcvideo
videodev 225280 3 videobuf2_v4l2,uvcvideo,videobuf2_common
virt_dma 20480 1 idma64
wmi 32768 2 asus_wmi,wmi_bmof
wmi_bmof 16384 0
x86_pkg_temp_thermal 20480 0
xfs 1282048 0
xor 24576 1 btrfs
x_tables 40960 1 ip_tables
zstd_compress 167936 1 btrfs
[/code]
[code]
>> iwconfig
wlx4c60de5d8297 IEEE 802.11 ESSID:"WiFi-2.4-BCB0"
Mode:Managed Frequency:2.412 GHz Access Point: 90:4D:4A:CC:BC:B6
Bit Rate=72.2 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=48/70 Signal level=-62 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:3 Missed beacon:0
>> ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
4: wlx4c60de5d8297: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 4c:60:de:5d:82:97 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.22/24 brd 192.168.1.255 scope global dynamic noprefixroute wlx4c60de5d8297
valid_lft 3530sec preferred_lft 3530sec
inet6 fe80::2893:8e07:8adb:11dc/64 scope link noprefixroute
valid_lft forever preferred_lft forever
>> sudo iwlist scan
wlx4c60de5d8297 Scan completed :
Cell 01 - Address: 90:4D:4A:CC:BC:B6
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=48/70 Signal level=-62 dBm
Encryption key:on
ESSID:"WiFi-2.4-BCB0"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=00000002398e78dd
Extra: Last beacon: 68ms ago
IE: Unknown: 000D576946692D322E342D42434230
IE: Unknown: 010882848B962430486C
IE: Unknown: 030101
IE: Unknown: 2A0104
IE: Unknown: 32040C121860
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 0B050300060000
IE: Unknown: 42020000
IE: Unknown: 46053000000000
IE: Unknown: 2D1A3C081BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601080400000000000000000000000000000000000000
IE: Unknown: 7F080400080000000040
IE: Unknown: DDAF0050F204104A0001101044000102103B0001031047001041F16F496A4874AC49B47980817645B810210008536167656D436F6D10230017536167656D636F6D4661737435333336765F42424F583310240009532E312E302D312E301042000F4C4B313632353544503334303335351054000800060050F20400011011001C536167656D636F6D4661737435333336765F42424F58332D4C4B3136100800022000103C0001011049000600372A000120
IE: Unknown: DD090010180203001C0000
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
>> uname -r -m
5.4.0-58-generic x86_64
>> cat /etc/network/interfaces
>> nm-tool
>> nmcli dev wifi
IN-USE BSSID SSID MODE CHAN RATE SIGNAL BARS SECURITY
* 90:4D:4A:CC:BC:B6 WiFi-2.4-BCB0 Infra 1 130 Mbit/s 70 ▂▄▆_ WPA2
>> nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04)
NAME UUID TYPE DEVICE
WiFi-2.4-BCB0 ad0e7629-56f3-4437-91cc-458612355ebd wifi wlx4c60de5d8297
Réseau Galaxy J3 2c89e970-8bfd-4486-9258-d10355e94cac bluetooth --
>> sudo rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: asus-wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
2: asus-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
5: phy2: Wireless LAN
Soft blocked: no
Hard blocked: no
[/code]Dernière modification par atomos (Le 23/12/2020, à 14:24)
Hors ligne
#2 Le 23/12/2020, à 12:42
- xubu1957
Re : [Résolu] Ubuntu 20.04.1 LTS RTL8821CE adaptateur de wi-fi trouvé ??
Bonjour,
Montre aussi :
bootctlConseils pour les nouveaux demandeurs et pas qu'eux
Important : Pensez à passer vos sujets en [Réso|u] lorsque ceux-ci le sont, au début du titre en cliquant sur Modifier sous le premier message, et un bref récapitulatif de la solution à la fin de celui-ci. Merci. Membre de Linux-Azur
Hors ligne
#3 Le 23/12/2020, à 13:08
- atomos
Re : [Résolu] Ubuntu 20.04.1 LTS RTL8821CE adaptateur de wi-fi trouvé ??
voici 
Failed to read "/boot/efi/EFI/systemd": Permission non accordée
Failed to open "/boot/efi/loader/loader.conf": Permission non accordée
System:
Firmware: n/a (n/a)
Secure Boot: enabled
Setup Mode: user
Current Boot Loader:
Product: n/a
Features: ✗ Boot counting
✗ Menu timeout control
✗ One-shot menu timeout control
✗ Default entry control
✗ One-shot entry control
✗ Support for XBOOTLDR partition
✗ Support for passing random seed to OS
✗ Boot loader sets ESP partition information
ESP: n/a
File: └─n/a
Random Seed:
Passed to OS: no
System Token: not set
lignes 1 - 23
Hors ligne
#4 Le 23/12/2020, à 13:12
- xubu1957
Re : [Résolu] Ubuntu 20.04.1 LTS RTL8821CE adaptateur de wi-fi trouvé ??
Failed to read "/boot/efi/EFI/systemd": Permission non accordée
Failed to open "/boot/efi/loader/loader.conf": Permission non accordée
System:
Firmware: n/a (n/a)
Secure Boot: enabled
Setup Mode: user
Current Boot Loader:
Product: n/a
Features: ✗ Boot counting
✗ Menu timeout control
✗ One-shot menu timeout control
✗ Default entry control
✗ One-shot entry control
✗ Support for XBOOTLDR partition
✗ Support for passing random seed to OS
✗ Boot loader sets ESP partition information
ESP: n/a
File: └─n/a
Random Seed:
Passed to OS: no
System Token: not set
lignes 1 - 23Comme indiqué dans le premier message du tutoriel Retour utilisable de commande.
Pour ajouter toi-même les balises code à ton précédent message #1 :
Cliquer sur le lien « Modifier » en bas à droite du message
Sélectionner le texte
Cliquer sur le <> de l'éditeur de message
_ _ _
Voir le § 2 et le début du § 3 > [Tuto] Pas de Wi-fi ? Eléments importants à vérifier, pour désactiver le secure-boot.
Conseils pour les nouveaux demandeurs et pas qu'eux
Important : Pensez à passer vos sujets en [Réso|u] lorsque ceux-ci le sont, au début du titre en cliquant sur Modifier sous le premier message, et un bref récapitulatif de la solution à la fin de celui-ci. Merci. Membre de Linux-Azur
Hors ligne
#5 Le 23/12/2020, à 14:29
- atomos
Re : [Résolu] Ubuntu 20.04.1 LTS RTL8821CE adaptateur de wi-fi trouvé ??
Merci merci merci.
Ça fonctionne !!
Hors ligne