Bonjour, je reprends le problème de la wi-fi qui ne fonctionne pas sous ubuntu 16 mais fonctionne sous windows 10 sur le même ordi avec les retour de commandes :
mitch@mitch-HP-250-G4-Notebook-PC:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.1 LTS"
mitch@mitch-HP-250-G4-Notebook-PC:~$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0bda:b006 Realtek Semiconductor Corp.
Bus 001 Device 004: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 001 Device 003: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 002: ID 05c8:022a Cheng Uei Precision Industry Co., Ltd (Foxlink)
mitch@mitch-HP-250-G4-Notebook-PC:~$ lspci
00:00.0 Host bridge: Intel Corporation Device 2280 (rev 21)
00:02.0 VGA compatible controller: Intel Corporation Device 22b1 (rev 21)
00:0b.0 Signal processing controller: Intel Corporation Device 22dc (rev 21)
00:13.0 SATA controller: Intel Corporation Device 22a3 (rev 21)
00:14.0 USB controller: Intel Corporation Device 22b5 (rev 21)
00:1a.0 Encryption controller: Intel Corporation Device 2298 (rev 21)
00:1b.0 Audio device: Intel Corporation Device 2284 (rev 21)
00:1c.0 PCI bridge: Intel Corporation Device 22c8 (rev 21)
00:1c.2 PCI bridge: Intel Corporation Device 22cc (rev 21)
00:1c.3 PCI bridge: Intel Corporation Device 22ce (rev 21)
00:1f.0 ISA bridge: Intel Corporation Device 229c (rev 21)
00:1f.3 SMBus: Intel Corporation Device 2292 (rev 21)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07)
mitch@mitch-HP-250-G4-Notebook-PC:~$ lspci -nn | grep -i net
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 07)
mitch@mitch-HP-250-G4-Notebook-PC:~$ lspci -k
00:00.0 Host bridge: Intel Corporation Device 2280 (rev 21)
Subsystem: Hewlett-Packard Company Device 80c5
Kernel driver in use: iosf_mbi_pci
00:02.0 VGA compatible controller: Intel Corporation Device 22b1 (rev 21)
Subsystem: Hewlett-Packard Company Device 80c5
Kernel driver in use: i915
Kernel modules: i915
00:0b.0 Signal processing controller: Intel Corporation Device 22dc (rev 21)
Subsystem: Hewlett-Packard Company Device 80c5
Kernel driver in use: proc_thermal
Kernel modules: processor_thermal_device
00:13.0 SATA controller: Intel Corporation Device 22a3 (rev 21)
Subsystem: Hewlett-Packard Company Device 80c5
Kernel driver in use: ahci
Kernel modules: ahci
00:14.0 USB controller: Intel Corporation Device 22b5 (rev 21)
Subsystem: Hewlett-Packard Company Device 80c5
Kernel driver in use: xhci_hcd
00:1a.0 Encryption controller: Intel Corporation Device 2298 (rev 21)
Subsystem: Hewlett-Packard Company Device 80c5
Kernel driver in use: mei_txe
Kernel modules: mei_txe
00:1b.0 Audio device: Intel Corporation Device 2284 (rev 21)
Subsystem: Hewlett-Packard Company Device 80c5
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation Device 22c8 (rev 21)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation Device 22cc (rev 21)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.3 PCI bridge: Intel Corporation Device 22ce (rev 21)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1f.0 ISA bridge: Intel Corporation Device 229c (rev 21)
Subsystem: Hewlett-Packard Company Device 80c5
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich
00:1f.3 SMBus: Intel Corporation Device 2292 (rev 21)
Subsystem: Hewlett-Packard Company Device 80c5
Kernel modules: i2c_i801
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter
Kernel driver in use: rtl8723be
Kernel modules: rtl8723be
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07)
Subsystem: Hewlett-Packard Company RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
Kernel driver in use: r8169
Kernel modules: r8169
mitch@mitch-HP-250-G4-Notebook-PC:~$ sudo lshw -C network
[sudo] Mot de passe de mitch :
*-network DÉSACTIVÉ
description: Interface réseau sans fil
produit: RTL8723BE PCIe Wireless Network Adapter
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:02:00.0
nom logique: wlp2s0
version: 00
numéro de série: 18:4f:32:91:9d:97
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8723be driverversion=4.4.0-31-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
ressources: irq:18 portE/S:2000(taille=256) mémoire:91200000-91203fff
*-network
description: Ethernet interface
produit: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:03:00.0
nom logique: enp3s0
version: 07
numéro de série: b0:5a:da:cb:d8:8f
taille: 100Mbit/s
capacité: 100Mbit/s
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress msix vpd 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=rtl8106e-1_0.0.1 06/29/12 ip=192.168.1.79 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
ressources: irq:116 portE/S:1000(taille=256) mémoire:91100000-91100fff mémoire:91000000-91003fff
mitch@mitch-HP-250-G4-Notebook-PC:~$ lsmod
Module Size Used by
uas 24576 0
usb_storage 69632 1 uas
rfcomm 69632 2
bnep 20480 2
nls_iso8859_1 16384 1
intel_rapl 20480 0
intel_powerclamp 16384 0
coretemp 16384 0
kvm 536576 0
arc4 16384 2
irqbypass 16384 1 kvm
rtl8723be 90112 0
btcoexist 53248 1 rtl8723be
rtl8723_common 24576 1 rtl8723be
rtl_pci 28672 1 rtl8723be
punit_atom_debug 16384 0
rtlwifi 77824 2 rtl_pci,rtl8723be
crct10dif_pclmul 16384 0
hp_wmi 16384 0
crc32_pclmul 16384 0
sparse_keymap 16384 1 hp_wmi
mac80211 737280 3 rtl_pci,rtlwifi,rtl8723be
aesni_intel 167936 0
uvcvideo 90112 0
aes_x86_64 20480 1 aesni_intel
lrw 16384 1 aesni_intel
videobuf2_vmalloc 16384 1 uvcvideo
btusb 45056 0
gf128mul 16384 1 lrw
videobuf2_memops 16384 1 videobuf2_vmalloc
btrtl 16384 1 btusb
videobuf2_v4l2 28672 1 uvcvideo
btbcm 16384 1 btusb
videobuf2_core 36864 2 uvcvideo,videobuf2_v4l2
glue_helper 16384 1 aesni_intel
v4l2_common 16384 1 videobuf2_v4l2
ablk_helper 16384 1 aesni_intel
btintel 16384 1 btusb
cfg80211 565248 2 mac80211,rtlwifi
snd_hda_codec_hdmi 53248 1
videodev 176128 4 uvcvideo,v4l2_common,videobuf2_core,videobuf2_v4l2
snd_hda_codec_realtek 86016 1
snd_hda_codec_generic 77824 1 snd_hda_codec_realtek
bluetooth 520192 29 bnep,btbcm,btrtl,btusb,rfcomm,btintel
cryptd 20480 2 aesni_intel,ablk_helper
media 24576 2 uvcvideo,videodev
snd_intel_sst_acpi 16384 0
snd_intel_sst_core 73728 1 snd_intel_sst_acpi
input_leds 16384 0
joydev 20480 0
serio_raw 16384 0
snd_hda_intel 36864 6
snd_soc_sst_mfld_platform 90112 1 snd_intel_sst_core
snd_hda_codec 135168 4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
snd_soc_core 212992 1 snd_soc_sst_mfld_platform
mei_txe 20480 0
lpc_ich 24576 0
mei 98304 1 mei_txe
dwc3 90112 0
snd_hda_core 73728 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
snd_hwdep 16384 1 snd_hda_codec
shpchp 36864 0
snd_compress 20480 1 snd_soc_core
ac97_bus 16384 1 snd_soc_core
snd_pcm_dmaengine 16384 1 snd_soc_core
snd_pcm 106496 7 snd_soc_core,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_soc_sst_mfld_platform,snd_pcm_dmaengine,snd_hda_core
udc_core 24576 1 dwc3
snd_seq_midi 16384 0
ulpi 16384 1 dwc3
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 1 snd_seq_midi
8250_fintek 16384 0
snd_seq 69632 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
i2c_designware_platform 16384 0
i2c_designware_core 20480 1 i2c_designware_platform
snd_timer 32768 2 snd_pcm,snd_seq
dw_dmac 16384 0
dw_dmac_core 24576 1 dw_dmac
snd 81920 26 snd_hda_codec_realtek,snd_soc_core,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_soc_sst_mfld_platform,snd_seq_device,snd_compress
pwm_lpss_platform 16384 0
soundcore 16384 1 snd
pwm_lpss 16384 1 pwm_lpss_platform
8250_dw 16384 0
soc_button_array 16384 0
hp_wireless 16384 0
spi_pxa2xx_platform 24576 0
tpm_crb 16384 0
processor_thermal_device 16384 0
intel_soc_dts_iosf 16384 1 processor_thermal_device
mac_hid 16384 0
int3400_thermal 16384 0
int3403_thermal 16384 0
acpi_thermal_rel 16384 1 int3400_thermal
int340x_thermal_zone 16384 2 processor_thermal_device,int3403_thermal
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,ppdev,parport_pc
autofs4 40960 2
hid_generic 16384 0
usbhid 49152 0
hid 118784 2 hid_generic,usbhid
i915 1208320 8
i2c_algo_bit 16384 1 i915
drm_kms_helper 147456 1 i915
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
psmouse 126976 0
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
drm 360448 9 i915,drm_kms_helper
ahci 36864 3
r8169 81920 0
libahci 32768 1 ahci
mii 16384 1 r8169
wmi 20480 1 hp_wmi
fjes 28672 0
video 40960 1 i915
sdhci_acpi 16384 0
pinctrl_cherryview 32768 0
sdhci 45056 1 sdhci_acpi
mitch@mitch-HP-250-G4-Notebook-PC:~$ iwconfig
lo no wireless extensions.
enp3s0 no wireless extensions.
wlp2s0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:on
mitch@mitch-HP-250-G4-Notebook-PC:~$ ifconfig
enp3s0 Link encap:Ethernet HWaddr b0:5a:da:cb:d8:8f
inet adr:192.168.1.79 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: fe80::8f4:201a:70e0:386a/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:429438 erreurs:0 :0 overruns:0 frame:0
TX packets:259787 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:573216840 (573.2 MB) Octets transmis:25611587 (25.6 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:15879 erreurs:0 :0 overruns:0 frame:0
TX packets:15879 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1
Octets reçus:1567034 (1.5 MB) Octets transmis:1567034 (1.5 MB)
mitch@mitch-HP-250-G4-Notebook-PC:~$ nmcli connection show
Erreur : les versions de nmcli (1.2.0) et de NetworkManager (1.1.93) ne correspondent pas. L'exécution peut être forcée avec --nocheck, mais les résultats sont imprévisibles.
Bien entendu la connection wi-fi a aussi été testée sur d'autres appareils.