Bonjour,
Voici les données du wificheck.
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04.3 LTS"
>> lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 04f2:b61e Chicony Electronics Co., Ltd
Bus 001 Device 006: ID 2717:ff80
Bus 001 Device 004: ID 8087:0aaa Intel Corp.
Bus 001 Device 002: ID 062a:4101 Creative Labs Wireless Keyboard/Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
00:14.3 Network controller [0280]: Intel Corporation Device [8086:02f0]
Subsystem: Intel Corporation Device [8086:02a4]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
>> sudo lshw -C network
*-network
description: Network controller
produit: Intel Corporation
fabriquant: Intel Corporation
identifiant matériel: 14.3
information bus: pci@0000:00:14.3
version: 00
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress msix bus_master cap_list
configuration: driver=iwlwifi latency=0
ressources: irq:16 mémoire:b1318000-b131bfff
*-network
description: Ethernet interface
identifiant matériel: 3
nom logique: enp0s20f0u2
numéro de série: 42:11:a8:31:1b:4b
fonctionnalités: ethernet physical
configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.168 link=yes multicast=yes
>> lsmod | sort
acpi_pad 184320 0
acpi_thermal_rel 16384 1 int3400_thermal
aesni_intel 372736 0
aes_x86_64 20480 1 aesni_intel
ahci 40960 0
autofs4 45056 2
bluetooth 557056 33 btrtl,btintel,btbcm,bnep,btusb,rfcomm
bnep 24576 2
btbcm 16384 1 btusb
btintel 24576 1 btusb
btrtl 20480 1 btusb
btusb 49152 0
cdc_ether 20480 1 rndis_host
cfg80211 679936 3 iwlmvm,iwlwifi,mac80211
coretemp 20480 0
cqhci 28672 1 sdhci_pci
crc32_pclmul 16384 0
crct10dif_pclmul 16384 1
cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel
crypto_simd 16384 1 aesni_intel
drm 483328 15 drm_kms_helper,i915
drm_kms_helper 180224 1 i915
ecdh_generic 28672 1 bluetooth
fb_sys_fops 16384 1 drm_kms_helper
ghash_clmulni_intel 16384 0
glue_helper 16384 1 aesni_intel
hid 126976 6 i2c_hid,wacom,usbhid,hid_multitouch,hid_sensor_hub,hid_generic
hid_generic 16384 0
hid_multitouch 28672 0
hid_sensor_accel_3d 20480 1
hid_sensor_custom 24576 0
hid_sensor_hub 24576 4 hid_sensor_trigger,hid_sensor_iio_common,hid_sensor_accel_3d,hid_sensor_custom
hid_sensor_iio_common 20480 2 hid_sensor_trigger,hid_sensor_accel_3d
hid_sensor_trigger 20480 2 hid_sensor_accel_3d
i2c_algo_bit 16384 1 i915
i2c_hid 28672 0
i915 1826816 22
ideapad_laptop 20480 0
idma64 20480 0
industrialio 73728 5 industrialio_triggered_buffer,hid_sensor_trigger,kfifo_buf,hid_sensor_accel_3d
industrialio_triggered_buffer 16384 1 hid_sensor_accel_3d
input_leds 16384 0
int3400_thermal 20480 0
int3403_thermal 16384 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 0
intel_powerclamp 20480 0
intel_rapl 24576 0
intel_rapl_perf 16384 0
intel_soc_dts_iosf 20480 1 processor_thermal_device
intel_wmi_thunderbolt 20480 0
ip_tables 32768 0
irqbypass 16384 1 kvm
iwlmvm 389120 0
iwlwifi 315392 1 iwlmvm
joydev 28672 0
kfifo_buf 16384 1 industrialio_triggered_buffer
kvm 647168 2 kvmgt,kvm_intel
kvmgt 28672 0
kvm_intel 241664 0
ledtrig_audio 16384 2 snd_hda_codec_generic,snd_hda_codec_conexant
libahci 32768 1 ahci
lp 20480 0
mac80211 819200 1 iwlmvm
mac_hid 16384 0
mdev 24576 2 kvmgt,vfio_mdev
media 53248 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
mei 106496 1 mei_me
mei_me 40960 0
mii 16384 1 usbnet
Module Size Used by
nls_iso8859_1 16384 1
nvme 45056 2
nvme_core 94208 4 nvme
parport 53248 3 parport_pc,lp,ppdev
parport_pc 36864 0
pinctrl_cannonlake 36864 0
pinctrl_intel 28672 1 pinctrl_cannonlake
ppdev 24576 0
processor_thermal_device 20480 0
rfcomm 77824 4
rndis_host 20480 0
sch_fq_codel 20480 2
sdhci 57344 1 sdhci_pci
sdhci_pci 45056 0
serio_raw 20480 0
snd 86016 23 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 135168 4 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel
snd_hda_codec_conexant 28672 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 49152 6
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 ideapad_laptop
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
usbhid 53248 1 wacom
usbnet 45056 2 rndis_host,cdc_ether
uvcvideo 94208 0
vfio 32768 3 kvmgt,vfio_mdev,vfio_iommu_type1
vfio_iommu_type1 28672 0
vfio_mdev 16384 0
video 49152 2 ideapad_laptop,i915
videobuf2_common 45056 2 videobuf2_v4l2,uvcvideo
videobuf2_memops 20480 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_vmalloc 20480 1 uvcvideo
videodev 204800 3 videobuf2_v4l2,uvcvideo,videobuf2_common
virt_dma 20480 1 idma64
wacom 110592 0
wmi 28672 3 intel_wmi_thunderbolt,wmi_bmof,ideapad_laptop
wmi_bmof 16384 0
x86_pkg_temp_thermal 20480 0
x_tables 40960 1 ip_tables
>> iwconfig
>> ifconfig -a
>> sudo iwlist scan
>> uname -r -m
5.0.0-37-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
>> nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04)
NAME UUID TYPE DEVICE
Connexion filaire 1 1139b059-64ed-35bc-b075-026dcaded5fe ethernet enp0s20f0u2
>> nmcli connection status
>> sudo rfkill list
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
1: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no