Bonjour,
Suite aux conseils, je donne le log trouvé :
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04.3 LTS"
>> lsusb
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 04f2:b374 Chicony Electronics Co., Ltd
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 058f:6387 Alcor Micro Corp. Flash Drive
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 045e:0745 Microsoft Corp. Nano Transceiver v1.0 for Bluetooth
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 006 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
03:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 105 [8086:0894] (rev c4)
Subsystem: Intel Corporation Centrino Wireless-N 105 BGN [8086:0022]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
04:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet [1969:1083] (rev c0)
Subsystem: Acer Incorporated [ALI] AR8151 v2.0 Gigabit Ethernet [1025:073d]
Kernel driver in use: atl1c
Kernel modules: atl1c
>> sudo lshw -C network
*-network
description: Interface réseau sans fil
produit: Centrino Wireless-N 105
fabriquant: Intel Corporation
identifiant matériel: 0
information bus: pci@0000:03:00.0
nom logique: wlp3s0
version: c4
numéro de série: 80:9b:20:4c:0d:84
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=5.0.0-23-generic firmware=18.168.6.1 latency=0 link=no multicast=yes wireless=IEEE 802.11
ressources: irq:35 mémoire:f0200000-f0201fff
*-network
description: Ethernet interface
produit: AR8151 v2.0 Gigabit Ethernet
fabriquant: Qualcomm Atheros
identifiant matériel: 0
information bus: pci@0000:04:00.0
nom logique: enp4s0
version: c0
numéro de série: 70:54:d2:3f:a7:08
taille: 100Mbit/s
capacité: 1Gbit/s
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.1-NAPI duplex=full ip=192.168.1.11 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
ressources: irq:36 mémoire:f0100000-f013ffff portE/S:2000(taille=128)
>> lsmod | sort
acer_wmi 24576 0
ahci 40960 2
arc4 16384 2
atl1c 53248 0
autofs4 45056 2
ccp 86016 0
cfg80211 675840 3 iwldvm,iwlwifi,mac80211
drm 479232 6 drm_kms_helper,radeon,ttm
drm_kms_helper 180224 1 radeon
fb_sys_fops 16384 1 drm_kms_helper
hid 126976 2 usbhid,hid_generic
hid_generic 16384 0
i2c_algo_bit 16384 1 radeon
i2c_piix4 28672 0
input_leds 16384 0
ip_tables 32768 0
irqbypass 16384 1 kvm
iwldvm 233472 0
iwlwifi 311296 1 iwldvm
joydev 28672 0
k10temp 16384 0
kvm 626688 0
ledtrig_audio 16384 2 snd_hda_codec_generic,snd_hda_codec_conexant
libahci 32768 1 ahci
lp 20480 0
mac80211 815104 1 iwldvm
mac_hid 16384 0
media 53248 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
Module Size Used by
nls_iso8859_1 16384 2
parport 53248 3 parport_pc,lp,ppdev
parport_pc 36864 0
ppdev 24576 0
psmouse 151552 0
radeon 1449984 4
sch_fq_codel 20480 6
serio_raw 20480 0
snd 86016 19 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_pcm,snd_rawmidi
snd_hda_codec 131072 4 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel
snd_hda_codec_conexant 24576 1
snd_hda_codec_generic 77824 1 snd_hda_codec_conexant
snd_hda_codec_hdmi 53248 1
snd_hda_core 86016 5 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_hda_intel 40960 4
snd_hwdep 20480 1 snd_hda_codec
snd_pcm 102400 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_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_timer 36864 2 snd_seq,snd_pcm
soundcore 16384 1 snd
sparse_keymap 16384 1 acer_wmi
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
ttm 102400 1 radeon
uas 24576 0
usbhid 53248 0
usb_storage 69632 2 uas
uvcvideo 94208 0
video 49152 1 acer_wmi
videobuf2_common 45056 2 videobuf2_v4l2,uvcvideo
videobuf2_memops 20480 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_vmalloc 20480 1 uvcvideo
videodev 200704 3 videobuf2_v4l2,uvcvideo,videobuf2_common
wmi 28672 2 acer_wmi,wmi_bmof
wmi_bmof 16384 0
x_tables 40960 1 ip_tables
>> iwconfig
wlp3s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=15 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
>> ifconfig -a
enp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.11 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::1cb1:630d:7cc:c974 prefixlen 64 scopeid 0x20<link>
ether 70:54:d2:3f:a7:08 txqueuelen 1000 (Ethernet)
RX packets 77 bytes 13793 (13.7 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 98 bytes 11098 (11.0 KB)
TX errors 0 dropped 0 overruns 0 carrier 1 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 (Boucle locale)
RX packets 2227 bytes 159764 (159.7 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2227 bytes 159764 (159.7 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp3s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 80:9b:20:4c:0d:84 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
>> sudo iwlist scan
wlp3s0 Scan completed :
Cell 01 - Address: D0:AE:EC:17:C6:7E
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=70/70 Signal level=-37 dBm
Encryption key:on
ESSID:"Livebox-a945"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000000002e91b042
Extra: Last beacon: 296ms ago
IE: Unknown: 000C4C697665626F782D61393435
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101860003A4000027A4000042435E0062322F00
IE: Unknown: 2D1A0C101BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606080800000000000000000000000000000000000000
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0A00037F04010000000000
IE: Unknown: 0706465220010D14
>> uname -r -m
5.0.0-23-generic x86_64
>> cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
>> nm-tool
>> nmcli dev wifi
IN-USE SSID MODE CHAN RATE SIGNAL BARS SECURITY
Livebox-a945 Infra 6 130 Mbit/s 100 ▂▄▆█ WPA1 WPA2
>> nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04)
NAME UUID TYPE DEVICE
Connexion filaire 1 2b2f5034-0981-338d-a2e1-76d740506000 ethernet enp4s0
FreeWifi c83e0847-6494-443b-8e44-ed84ae921604 wifi --
Livebox-a945 17d37de0-e83e-4bd3-9bb3-a7fa4ea8ccc5 wifi --
>> nmcli connection status
>> sudo rfkill list
0: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
La connection filaire fonctionne, la wifi fonctionne normalement avec un portable Acer, mais sur celui-là, ça coince.
J'ai essayé de voir dans le BIOS, j'ai rentré un code pour pouvoir accéder aux autres fonctions (demandé sur un tuto du site), ça n'a rien changé, je dois donc faire appel aux spécialistes !
Merci à vous !