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probleme avec mon wifi

tony84

bonjours a tous je vien d'installer ubuntu 15.10
mais quand j arrète mon pc, au redemarage on me dit wifi déconnecter par un commutateur matériel
et au bout de une heure d'utilisation tous réaparé
merci de me donner une solution a ce problème

xubu1957

Bonjour,

Donnes les informations : wifi

en te servant du : retour utilisable de commande

tony84

Bus 004 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 004 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 005: ID 04f2:b47f Chicony Electronics Co., Ltd
Bus 003 Device 004: ID 04ca:2009 Lite-On Technology Corp.
Bus 003 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 003 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

xubu1957

????

Il faut l'ensemble des informations avec le retour normalisé du forum, relis mon post # 2

Lorsque vous avez un souci avec le wi-fi, postez, dans votre premier message, les résultats de ces commandes, en les insérant entre les balises [ Code ]:

cat /etc/lsb-release
lsusb
lspci
lspci -nn | grep -i net
lspci -k
sudo lshw -C network
lsmod
iwconfig
ifconfig
sudo iwlist scan
uname -r -m
cat /etc/network/interfaces
nm-tool
sudo rfkill list
nmcli connection show

tony84

cat /etc/lsb-release

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=15.10
DISTRIB_CODENAME=wily
DISTRIB_DESCRIPTION="Ubuntu 15.10"

lsusb
Bus 004 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 004 Device 002: ID 0438:7900 Advanced Micro Devices, Inc. 
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 005: ID 04f2:b47f Chicony Electronics Co., Ltd 
Bus 003 Device 004: ID 04ca:2009 Lite-On Technology Corp. 
Bus 003 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 003 Device 002: ID 0438:7900 Advanced Micro Devices, Inc. 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 0e79:3224 Archos, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1566
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Mullins [Radeon R2 Graphics]
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Kabini HDMI/DP Audio
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 156b
00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Functions 5:1
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Functions 5:1
00:08.0 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 1537
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 11)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 40)
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 39)
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 39)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 42)
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller (rev 02)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
00:14.7 SD Host controller: Advanced Micro Devices, Inc. [AMD] FCH SD Flash Controller (rev 01)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1580
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1581
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1582
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1583
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1584
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1585
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
02:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)

lspci -nn | grep -i net
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)
02:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)

lspci -k
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1566
	Subsystem: Advanced Micro Devices, Inc. [AMD] Device 1566
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Mullins [Radeon R2 Graphics]
	Subsystem: Acer Incorporated [ALI] Device 104b
	Kernel driver in use: radeon
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Kabini HDMI/DP Audio
	Subsystem: Acer Incorporated [ALI] Device 104b
	Kernel driver in use: snd_hda_intel
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 156b
00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Functions 5:1
	Kernel driver in use: pcieport
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Functions 5:1
	DeviceName: CX20752 HD AUDIO CODEC
	Kernel driver in use: pcieport
00:08.0 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 1537
	Subsystem: Acer Incorporated [ALI] Device 104b
	Kernel driver in use: AMD Cryptographic Coprocessor
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 11)
	Subsystem: Acer Incorporated [ALI] Device 104b
	Kernel driver in use: xhci_hcd
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 40)
	Subsystem: Acer Incorporated [ALI] Device 104b
	Kernel driver in use: ahci
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 39)
	Subsystem: Acer Incorporated [ALI] Device 104b
	Kernel driver in use: ehci-pci
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 39)
	Subsystem: Acer Incorporated [ALI] Device 104b
	Kernel driver in use: ehci-pci
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 42)
	Subsystem: Acer Incorporated [ALI] Device 104b
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller (rev 02)
	Subsystem: Acer Incorporated [ALI] Device 104b
	Kernel driver in use: snd_hda_intel
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
	Subsystem: Acer Incorporated [ALI] Device 104b
00:14.7 SD Host controller: Advanced Micro Devices, Inc. [AMD] FCH SD Flash Controller (rev 01)
	Subsystem: Acer Incorporated [ALI] Device 104b
	Kernel driver in use: sdhci-pci
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1580
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1581
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1582
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1583
	Kernel driver in use: k10temp
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1584
	Kernel driver in use: fam15h_power
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1585
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
	Subsystem: Acer Incorporated [ALI] Device 104b
	Kernel driver in use: r8169
02:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
	Subsystem: Lite-On Communications Inc Device 6645
	Kernel driver in use: wl

sudo lshw -C network
Mot de passe [sudo] pour tony : 
  *-network               
       description: Ethernet interface
       produit: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       fabriquant: Realtek Semiconductor Co., Ltd.
       identifiant matériel: 0
       information bus: pci@0000:01:00.0
       nom logique: enp1s0
       version: 10
       numéro de série: 1c:39:47:94:b5:ce
       taille: 10Mbit/s
       capacité: 1Gbit/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 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168g-3_0.0.1 04/23/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       ressources: irq:33 portE/S:2000(taille=256) mémoire:90b04000-90b04fff mémoire:90b00000-90b03fff
  *-network DÉSACTIVÉ
       description: Interface réseau sans fil
       produit: BCM43142 802.11b/g/n
       fabriquant: Broadcom Corporation
       identifiant matériel: 0
       information bus: pci@0000:02:00.0
       nom logique: wlp2s0
       version: 01
       numéro de série: b8:86:87:c4:ca:a1
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=wl0 driverversion=6.30.223.248 (r487574) latency=0 multicast=yes wireless=IEEE 802.11abg
       ressources: irq:38 mémoire:90a00000-90a07fff
  *-network
       description: Ethernet interface
       identifiant matériel: 1
       nom logique: enxce751ef53d17
       numéro de série: ce:75:1e:f5:3d:17
       fonctionnalités: ethernet physical
       configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.13 link=yes multicast=yes

lsmod
Module                  Size  Used by
wl                   6152192  0
cfg80211              491520  1 wl
rfcomm                 65536  0
bnep                   20480  2
binfmt_misc            20480  1
pci_stub               16384  1
vboxpci                24576  0
vboxnetadp             28672  0
vboxnetflt             28672  0
vboxdrv               352256  3 vboxnetadp,vboxnetflt,vboxpci
rtsx_usb_ms            20480  0
memstick               16384  1 rtsx_usb_ms
uvcvideo               77824  0
btusb                  36864  0
btrtl                  16384  1 btusb
videobuf2_vmalloc      16384  1 uvcvideo
btbcm                  16384  1 btusb
btintel                16384  1 btusb
videobuf2_memops       16384  1 videobuf2_vmalloc
videobuf2_core         49152  1 uvcvideo
bluetooth             466944  29 bnep,btbcm,btrtl,btusb,rfcomm,btintel
v4l2_common            16384  1 videobuf2_core
videodev              143360  3 uvcvideo,v4l2_common,videobuf2_core
media                  24576  2 uvcvideo,videodev
rndis_host             16384  0
joydev                 20480  0
cdc_ether              16384  1 rndis_host
kvm_amd                57344  0
usbnet                 40960  2 rndis_host,cdc_ether
acer_wmi               20480  0
sparse_keymap          16384  1 acer_wmi
kvm                   454656  1 kvm_amd
snd_hda_codec_hdmi     49152  1
snd_hda_codec_realtek    77824  1
snd_hda_codec_generic    69632  1 snd_hda_codec_realtek
snd_hda_intel          32768  7
snd_hda_codec         118784  4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
crc32_pclmul           16384  0
snd_hda_core           57344  5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
aesni_intel            20480  0
aes_i586               20480  1 aesni_intel
snd_hwdep              16384  1 snd_hda_codec
xts                    16384  1 aesni_intel
lrw                    16384  1 aesni_intel
gf128mul               16384  2 lrw,xts
ablk_helper            16384  1 aesni_intel
snd_pcm                90112  5 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
cryptd                 20480  1 ablk_helper
snd_seq_midi           16384  0
snd_seq_midi_event     16384  1 snd_seq_midi
snd_rawmidi            28672  1 snd_seq_midi
input_leds             16384  0
snd_seq                57344  2 snd_seq_midi_event,snd_seq_midi
edac_core              49152  0
edac_mce_amd           24576  0
serio_raw              16384  0
snd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midi
fam15h_power           16384  0
i2c_piix4              20480  0
k10temp                16384  0
snd_timer              32768  2 snd_pcm,snd_seq
snd                    69632  24 snd_hda_codec_realtek,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_seq_device
soundcore              16384  1 snd
shpchp                 32768  0
mac_hid                16384  0
ccp                    32768  0
parport_pc             32768  0
ppdev                  20480  0
lp                     20480  0
parport                45056  3 lp,ppdev,parport_pc
autofs4                40960  2
hid_generic            16384  0
usbhid                 49152  0
rtsx_usb_sdmmc         28672  0
rtsx_usb               20480  2 rtsx_usb_sdmmc,rtsx_usb_ms
radeon               1466368  4
r8169                  77824  0
sdhci_pci              20480  0
i2c_algo_bit           16384  1 radeon
ttm                    86016  1 radeon
sdhci                  45056  1 sdhci_pci
ahci                   32768  2
drm_kms_helper        118784  1 radeon
mii                    16384  2 r8169,usbnet
libahci                32768  1 ahci
drm                   303104  51 ttm,drm_kms_helper,radeon
wmi                    20480  1 acer_wmi
i2c_hid                20480  0
hid                    98304  4 i2c_hid,hid_generic,usbhid
video                  24576  1 acer_wmi

iwconfig
enxce751ef53d17  no wireless extensions.

lo        no wireless extensions.

enp1s0    no wireless extensions.

wlp2s0    IEEE 802.11abg  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

ifconfig
enp1s0    Link encap:Ethernet  HWaddr 1c:39:47:94:b5:ce  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)

enxce751ef53d17 Link encap:Ethernet  HWaddr ce:75:1e:f5:3d:17  
          inet adr:192.168.42.13  Bcast:192.168.42.255  Masque:255.255.255.0
          adr inet6: fe80::cc75:1eff:fef5:3d17/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:89057 erreurs:3 :0 overruns:0 frame:3
          TX packets:49287 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:115622847 (115.6 MB) Octets transmis:7431947 (7.4 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:908 erreurs:0 :0 overruns:0 frame:0
          TX packets:908 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:83926 (83.9 KB) Octets transmis:83926 (83.9 KB)

sudo iwlist scan
enxce751ef53d17  Interface doesn't support scanning.

lo        Interface doesn't support scanning.

enp1s0    Interface doesn't support scanning.

wlp2s0    Interface doesn't support scanning : Network is down

uname -r -m 
4.2.0-35-generic i686

cat  /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

nm-tool
La commande « nm-tool » est introuvable, vouliez-vous dire :
 La commande « dm-tool » du paquet « lightdm » (main)
nm-tool : commande introuvable

sudo rfkill list
0: acer-bluetooth: Bluetooth
	Soft blocked: no
	Hard blocked: no
1: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
2: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
3: brcmwl-0: Wireless LAN
	Soft blocked: no
	Hard blocked: yes

nmcli connection show
NOM                   UUID                                  TYPE             PÉRIPHÉRIQUE    
Ethernet automatique  50323bdf-85f1-42bd-ae20-85669967eae9  802-3-ethernet   enxce751ef53d17 
tony-Aspire-ES1-521   7e65c731-ef7a-47d8-aaa9-15916b30d4d7  802-11-wireless  --              
Hotspot               2daade16-7f68-4073-83b6-ade57587218b  802-11-wireless  --              
SFR-15c8              543b19be-98f4-42de-8b57-9bb84518b20a  802-11-wireless  --

xubu1957

Les retours sont lisibles !

La carte wifi:

02:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)

Dans ce lien :configurer-une-carte-wifi-bluetooth-bcm43142-sur-ubuntu

Problèmes connus
WiFi inactif en sortie de veille
Sur certains modèles de PC portables (à priori ceux disposant de l'USB 3 et utilisant le pilote xhci_hcd), le WiFi n'est pas disponible en sortie de veille. Une hypothèse sur le sujet est que cela est du à la disparition de la carte USB Bluetooth présente sur la carte Wifi.

Une solution de contournement de ce problème est de configurer l'ordinateur pour hiberner lorsque le capot est fermé au lieu de se mettre en veille, comme décrit par activer-l'hibernation-sur-ubuntu.