Ah, excuse moi!
J'avais recopié le wificheck.log en plein processus :
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.3 LTS"
>> lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0a5c:216d Broadcom Corp.
Bus 001 Device 002: ID 04f2:b50d Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
08:00.0 Network controller [0280]: Broadcom Limited BCM43142 802.11b/g/n [14e4:4365] (rev 01)
DeviceName: Broadcom BCM43142 802.11 b/g/n 1x1Wi-Fi + BT4.0 M.2 Combo Adapter
Subsystem: Hewlett-Packard Company BCM43142 802.11b/g/n [103c:804a]
Kernel modules: wl
09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 0a)
DeviceName: Realtek PCIe FE Family Controller
Subsystem: Hewlett-Packard Company RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [103c:80a1]
Kernel driver in use: r8169
Kernel modules: r8169
>> sudo lshw -C network
*-network NON-RÉCLAMÉ
description: Network controller
produit: BCM43142 802.11b/g/n
fabriquant: Broadcom Limited
identifiant matériel: 0
information bus: pci@0000:08:00.0
version: 01
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress cap_list
configuration: latency=0
ressources: mémoire:94100000-94107fff
*-network
description: Ethernet interface
produit: RTL810xE PCI Express Fast Ethernet controller
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:09:00.0
nom logique: eno1
version: 0a
numéro de série: dc:4a:3e:e6:b3:01
taille: 100Mbit/s
capacité: 100Mbit/s
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8107e-2_0.0.2 02/26/15 ip=192.168.1.28 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
ressources: irq:129 portE/S:3000(taille=256) mémoire:94004000-94004fff mémoire:94000000-94003fff
>> lsmod
Module Size Used by
rfcomm 77824 2
nvram 16384 0
msr 16384 0
bnep 20480 2
intel_rapl 20480 0
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
coretemp 16384 0
nls_iso8859_1 16384 1
snd_hda_codec_hdmi 49152 1
snd_hda_codec_realtek 94208 1
snd_hda_codec_generic 73728 1 snd_hda_codec_realtek
snd_hda_intel 40960 3
snd_hda_codec 126976 4 snd_hda_intel,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
kvm 585728 0
snd_hda_core 81920 5 snd_hda_intel,snd_hda_codec,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
irqbypass 16384 1 kvm
snd_hwdep 20480 1 snd_hda_codec
crct10dif_pclmul 16384 0
snd_pcm 98304 4 snd_hda_intel,snd_hda_codec,snd_hda_core,snd_hda_codec_hdmi
snd_seq_midi 16384 0
input_leds 16384 0
serio_raw 16384 0
processor_thermal_device 16384 0
intel_pch_thermal 16384 0
intel_soc_dts_iosf 16384 1 processor_thermal_device
joydev 20480 0
hp_wmi 16384 0
wmi_bmof 16384 0
sparse_keymap 16384 1 hp_wmi
btusb 45056 0
btrtl 16384 1 btusb
btbcm 16384 1 btusb
btintel 16384 1 btusb
hp_accel 28672 0
lis3lv02d 20480 1 hp_accel
bluetooth 544768 31 btrtl,btintel,bnep,btbcm,rfcomm,btusb
ecdh_generic 24576 1 bluetooth
uvcvideo 90112 0
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_core 40960 2 uvcvideo,videobuf2_v4l2
videodev 172032 3 uvcvideo,videobuf2_core,videobuf2_v4l2
media 40960 2 uvcvideo,videodev
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 1 snd_seq_midi
snd_seq 65536 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
snd_timer 32768 2 snd_seq,snd_pcm
pcbc 16384 0
aesni_intel 188416 0
aes_x86_64 20480 1 aesni_intel
crypto_simd 16384 1 aesni_intel
glue_helper 16384 1 aesni_intel
snd 81920 17 snd_hda_intel,snd_hwdep,snd_seq,snd_hda_codec,snd_timer,snd_rawmidi,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_seq_device,snd_hda_codec_realtek,snd_pcm
soundcore 16384 1 snd
input_polldev 16384 1 lis3lv02d
int3400_thermal 16384 0
acpi_thermal_rel 16384 1 int3400_thermal
cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel
intel_cstate 20480 0
cfg80211 614400 0
intel_rapl_perf 16384 0
rtsx_pci_ms 20480 0
int3403_thermal 16384 0
int340x_thermal_zone 16384 2 int3403_thermal,processor_thermal_device
memstick 16384 1 rtsx_pci_ms
shpchp 36864 0
mei_me 40960 0
mei 98304 1 mei_me
mac_hid 16384 0
tpm_crb 16384 0
hp_wireless 16384 0
wmi 24576 2 wmi_bmof,hp_wmi
acpi_pad 180224 0
iptable_filter 16384 0
ip_tables 24576 1 iptable_filter
ip6table_filter 16384 0
ip6_tables 28672 1 ip6table_filter
br_netfilter 24576 0
bridge 143360 1 br_netfilter
stp 16384 1 bridge
llc 16384 2 bridge,stp
arp_tables 24576 0
x_tables 40960 5 arp_tables,ip_tables,iptable_filter,ip6table_filter,ip6_tables
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,parport_pc,ppdev
autofs4 40960 2
i915 1806336 110
i2c_algo_bit 16384 1 i915
drm_kms_helper 167936 1 i915
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
rtsx_pci_sdmmc 24576 0
psmouse 143360 0
r8169 81920 0
ahci 36864 3
drm 356352 11 i915,drm_kms_helper
mii 16384 1 r8169
rtsx_pci 57344 2 rtsx_pci_sdmmc,rtsx_pci_ms
libahci 32768 1 ahci
video 40960 1 i915
>> iwconfig
>> ifconfig -a
eno1 Link encap:Ethernet HWaddr dc:4a:3e:e6:b3:01
inet adr:192.168.1.28 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: 2a01:cb04:8d:8d00:4767:825e:c069:5215/64 Scope:Global
adr inet6: fe80::8ce5:4f43:6990:c05f/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:183986 erreurs:0 :0 overruns:0 frame:0
TX packets:96918 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:249037891 (249.0 MB) Octets transmis:10776252 (10.7 MB)
lo Link encap:Boucle locale
inet adr:127.0.0.1 Masque:255.0.0.0
adr inet6: ::1/128 Scope:Hôte
UP LOOPBACK RUNNING MTU:65536 Metric:1
Packets reçus:1722 erreurs:0 :0 overruns:0 frame:0
TX packets:1722 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:151733 (151.7 KB) Octets transmis:151733 (151.7 KB)
>> sudo iwlist scan
>> uname -r -m
4.13.0-26-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)
NOM UUID TYPE PÉRIPHÉRIQUE
Connexion filaire 1 e2232af4-e936-3788-bcb7-f91a41f857f8 802-3-ethernet eno1
Connexion Wi-Fi 1 27f133e5-bfbc-4e9b-ac1a-6eac9a7dbc6d 802-11-wireless --
>> nmcli connection status
>> sudo rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no