Bonjour,
je viens d'installer xubuntu 20.04 sur un ordinateur qui supportait xubuntu 18.04 avant et je m'aperçois qu'il n'y a pas de connexion wifi. Bizarrement, il m'a semblé que pendant la première installation, il a correctement téléchargé les mises à jour mais après, plus rien. Il ne détecte aucun wifi. J'ai refais une installation et là, même plus possible de se connecter pendant l'installation.
Voici les commandes demandées :
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ lsusb
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 003: ID 0781:5581 SanDisk Corp. Ultra
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 13d3:3394 IMC Networks Bluetooth
Bus 003 Device 002: ID 0bda:0138 Realtek Semiconductor Corp. RTS5138 Card Reader Controller
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation Haswell Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5)
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d5)
00:1c.5 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #6 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05)
03:00.0 Ethernet controller: Qualcomm Atheros AR8161 Gigabit Ethernet (rev 10)
04:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723AE PCIe Wireless Network Adapter
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ lspci -k -nn | grep -A 3 -i net
03:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8161 Gigabit Ethernet [1969:1091] (rev 10)
Subsystem: Micro-Star International Co., Ltd. [MSI] AR8161 Gigabit Ethernet [1462:10e9]
Kernel driver in use: alx
Kernel modules: alx
04:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723AE PCIe Wireless Network Adapter [10ec:8723]
Subsystem: AzureWave RTL8723AE PCIe Wireless Network Adapter [1a3b:2114]
Kernel driver in use: rtl8723ae
Kernel modules: rtl8723ae
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ lspci -k
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller (rev 06)
Subsystem: Micro-Star International Co., Ltd. [MSI] Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller
Kernel modules: ie31200_edac
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
Kernel driver in use: pcieport
00:02.0 VGA compatible controller: Intel Corporation Haswell Integrated Graphics Controller (rev 06)
DeviceName: Onboard IGD
Subsystem: Micro-Star International Co., Ltd. [MSI] Haswell Integrated Graphics Controller
Kernel driver in use: i915
Kernel modules: i915
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
Subsystem: Micro-Star International Co., Ltd. [MSI] Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05)
Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset Family USB xHCI
Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset Family MEI Controller
Kernel driver in use: mei_me
Kernel modules: mei_me
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05)
Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset Family USB EHCI
Kernel driver in use: ehci-pci
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset High Definition Audio Controller
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5)
Kernel driver in use: pcieport
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d5)
Kernel driver in use: pcieport
00:1c.5 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #6 (rev d5)
Kernel driver in use: pcieport
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)
Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset Family USB EHCI
Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
Subsystem: Micro-Star International Co., Ltd. [MSI] HM86 Express LPC Controller
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode]
Kernel driver in use: ahci
Kernel modules: ahci
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05)
Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset Family SMBus Controller
Kernel driver in use: i801_smbus
Kernel modules: i2c_i801
03:00.0 Ethernet controller: Qualcomm Atheros AR8161 Gigabit Ethernet (rev 10)
Subsystem: Micro-Star International Co., Ltd. [MSI] AR8161 Gigabit Ethernet
Kernel driver in use: alx
Kernel modules: alx
04:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723AE PCIe Wireless Network Adapter
Subsystem: AzureWave RTL8723AE PCIe Wireless Network Adapter
Kernel driver in use: rtl8723ae
Kernel modules: rtl8723ae
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ sudo lshw -C network
[sudo] Mot de passe de ch :
*-network
description: Ethernet interface
produit: AR8161 Gigabit Ethernet
fabricant: Qualcomm Atheros
identifiant matériel: 0
information bus: pci@0000:03:00.0
nom logique: enp3s0
version: 10
numéro de série: 44:8a:5b:ef:f2:57
capacité: 1Gbit/s
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm pciexpress msi msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration : autonegotiation=on broadcast=yes driver=alx latency=0 link=no multicast=yes port=twisted pair
ressources : irq:19 mémoire:f7d00000-f7d3ffff portE/S:e000(taille=128)
*-network
description: Interface réseau sans fil
produit: RTL8723AE PCIe Wireless Network Adapter
fabricant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:04:00.0
nom logique: wlp4s0
version: 00
numéro de série: 40:e2:30:a4:2d:9c
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration : broadcast=yes driver=rtl8723ae driverversion=5.4.0-26-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
ressources : irq:17 portE/S:d000(taille=256) mémoire:f7c00000-f7c03fff
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ lsmod | sort
ac97_bus 16384 1 snd_soc_core
af_alg 24576 6 algif_hash,algif_skcipher
ahci 40960 2
algif_hash 16384 1
algif_skcipher 16384 1
alx 49152 0
autofs4 45056 2
bluetooth 581632 41 btrtl,btintel,btbcm,bnep,btusb,rfcomm
bnep 24576 2
btbcm 16384 1 btusb
btcoexist 155648 1 rtl8723ae
btintel 24576 1 btusb
btrtl 24576 1 btusb
btusb 57344 0
cfg80211 704512 2 rtlwifi,mac80211
cmac 16384 3
coretemp 20480 0
crc32_pclmul 16384 0
crct10dif_pclmul 16384 1
cryptd 24576 1 ghash_clmulni_intel
drm 491520 5 drm_kms_helper,i915
drm_kms_helper 184320 1 i915
ecc 28672 1 ecdh_generic
ecdh_generic 16384 2 bluetooth
fb_sys_fops 16384 1 drm_kms_helper
ghash_clmulni_intel 16384 0
i2c_algo_bit 16384 1 i915
i2c_i801 32768 0
i915 1986560 5
ie31200_edac 16384 0
input_leds 16384 0
intel_cstate 20480 0
intel_powerclamp 20480 0
intel_rapl_common 24576 1 intel_rapl_msr
intel_rapl_msr 20480 0
intel_rapl_perf 20480 0
ip_tables 32768 0
joydev 24576 0
kvm 663552 1 kvm_intel
kvm_intel 286720 0
ledtrig_audio 16384 2 snd_hda_codec_generic,snd_hda_codec_realtek
libahci 32768 1 ahci
libarc4 16384 1 mac80211
lp 20480 0
lpc_ich 24576 0
mac80211 843776 3 rtl_pci,rtl8723ae,rtlwifi
mac_hid 16384 0
mdio 16384 1 alx
mei 106496 3 mei_hdcp,mei_me
mei_hdcp 24576 0
mei_me 40960 1
Module Size Used by
msi_wmi 20480 0
nls_iso8859_1 16384 2
parport 53248 3 parport_pc,lp,ppdev
parport_pc 40960 0
ppdev 24576 0
psmouse 155648 0
rfcomm 81920 16
rtl8723ae 90112 0
rtl8723_common 24576 1 rtl8723ae
rtl_pci 28672 1 rtl8723ae
rtlwifi 90112 4 rtl_pci,btcoexist,rtl8723ae,rtl8723_common
sch_fq_codel 20480 7
serio_raw 20480 0
snd 90112 21 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 131072 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_codec_generic 81920 1 snd_hda_codec_realtek
snd_hda_codec_hdmi 61440 1
snd_hda_codec_realtek 118784 1
snd_hda_core 90112 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hda_intel 53248 4
snd_hwdep 20480 1 snd_hda_codec
snd_intel_dspcfg 24576 1 snd_hda_intel
snd_pcm 106496 7 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_soc_rt5640,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_core 245760 1 snd_soc_rt5640
snd_soc_rl6231 20480 1 snd_soc_rt5640
snd_soc_rt5640 143360 0
snd_timer 36864 2 snd_seq,snd_pcm
soundcore 16384 1 snd
sparse_keymap 16384 1 msi_wmi
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
uas 28672 0
ums_realtek 24576 0
usb_storage 77824 3 uas,ums_realtek
video 49152 2 msi_wmi,i915
wmi 32768 1 msi_wmi
x86_pkg_temp_thermal 20480 0
x_tables 40960 1 ip_tables
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ iwconfig
wlp4s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:on
enp3s0 no wireless extensions.
lo no wireless extensions.
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ 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
2: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 44:8a:5b:ef:f2:57 brd ff:ff:ff:ff:ff:ff
3: wlp4s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 40:e2:30:a4:2d:9c brd ff:ff:ff:ff:ff:ff
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ sudo iwlist scan
wlp4s0 No scan results
enp3s0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ uname -r -m
5.4.0-26-generic x86_64
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ cat /etc/network/interfaces
La commande « cat » n'a pas été trouvée, voulez-vous dire :
commande « cat » du deb coreutils (8.30-3ubuntu2)
Essayez : sudo apt install <nom du deb>
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ cat /etc/network/interfaces
cat: /etc/network/interfaces: Aucun fichier ou dossier de ce type
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ cat/etc/network/interfaces
bash: cat/etc/network/interfaces: Aucun fichier ou dossier de ce type
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ nm-tool
La commande « nm-tool » n'a pas été trouvée, voulez-vous dire :
commande « dm-tool » du deb lightdm (1.30.0-0ubuntu3.1)
Essayez : sudo apt install <nom du deb>
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ sudo rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$ nmcli connection show
NAME UUID TYPE DEVICE
Connexion filaire 1 57d54b36-852f-3f14-bf45-737e3dc767c7 ethernet --
ch@ch-CR61-2M-CX61-2OC-CX61-2OD:~$
En vous remerciant par avance!
