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#1 Le 26/12/2015, à 19:48
- bMarwene
[Resolu] Wifi instable
Bonjour à tous,
J'ai un probeleme avec mon wifi, au debut juste apres l'installation de Ubuntu 14.04 il y a une semaine, le wifi n etait pas activé alors en regardant dans le forum d Ubuntu j ai reussi a l activer mais le probeleme c est qu il n est pas stable, lorque je demarre l ordi ça fonctionne pendant 15 minutes a peu pres et ensuite il s arrete malgre que Ubuntu me dit que je suis bien connecté à mon resaeau wifi
Quelqu un sait comment je peux faire ?
Dernière modification par bMarwene (Le 28/12/2015, à 12:33)
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#2 Le 27/12/2015, à 09:00
- moko138
Re : [Resolu] Wifi instable
Lis l'encadré dans le sous-forum "wifi". Car nos boules de cristal...
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#3 Le 27/12/2015, à 18:56
- bMarwene
Re : [Resolu] Wifi instable
ah Oui, Excuse-moi je l'ai pas lu avant de poster
Voila les résultats
cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS"lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0bda:b728 Realtek Semiconductor Corp.
Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 003: ID 5986:0652 Acer, Inc
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hublspci
00:00.0 Host bridge: Intel Corporation ValleyView SSA-CUnit (rev 0e)
00:02.0 VGA compatible controller: Intel Corporation ValleyView Gen7 (rev 0e)
00:13.0 SATA controller: Intel Corporation ValleyView 6-Port SATA AHCI Controller (rev 0e)
00:14.0 USB controller: Intel Corporation ValleyView USB xHCI Host Controller (rev 0e)
00:1a.0 Encryption controller: Intel Corporation ValleyView SEC (rev 0e)
00:1b.0 Audio device: Intel Corporation ValleyView High Definition Audio Controller (rev 0e)
00:1c.0 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e)
00:1c.2 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e)
00:1c.3 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e)
00:1f.0 ISA bridge: Intel Corporation ValleyView Power Control Unit (rev 0e)
00:1f.3 SMBus: Intel Corporation ValleyView SMBus Controller (rev 0e)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
lspci -nn | grep -i ne
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. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)lspci -k
00:00.0 Host bridge: Intel Corporation ValleyView SSA-CUnit (rev 0e)
Subsystem: Lenovo Device 3905
Kernel driver in use: iosf_mbi_pci
00:02.0 VGA compatible controller: Intel Corporation ValleyView Gen7 (rev 0e)
Subsystem: Lenovo Device 3905
Kernel driver in use: i915
00:13.0 SATA controller: Intel Corporation ValleyView 6-Port SATA AHCI Controller (rev 0e)
Subsystem: Lenovo Device 3905
Kernel driver in use: ahci
00:14.0 USB controller: Intel Corporation ValleyView USB xHCI Host Controller (rev 0e)
Subsystem: Lenovo Device 3905
Kernel driver in use: xhci_hcd
00:1a.0 Encryption controller: Intel Corporation ValleyView SEC (rev 0e)
Subsystem: Lenovo Device 3905
Kernel driver in use: mei_txe
00:1b.0 Audio device: Intel Corporation ValleyView High Definition Audio Controller (rev 0e)
Subsystem: Lenovo Device 3905
Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e)
Kernel driver in use: pcieport
00:1c.2 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e)
Kernel driver in use: pcieport
00:1c.3 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e)
Kernel driver in use: pcieport
00:1f.0 ISA bridge: Intel Corporation ValleyView Power Control Unit (rev 0e)
Subsystem: Lenovo Device 3905
Kernel driver in use: lpc_ich
00:1f.3 SMBus: Intel Corporation ValleyView SMBus Controller (rev 0e)
Subsystem: Lenovo Device 3905
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
Subsystem: Lenovo Device b736
Kernel driver in use: rtl8723be
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
Subsystem: Lenovo Device 3816
Kernel driver in use: r8169sudo lshw -C network
[sudo] password for marwene:
*-network
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: wlan0
version: 00
numéro de série: c0:38:96:46:68:b7
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8723be driverversion=3.19.0-42-generic firmware=N/A ip=192.168.1.16 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
ressources: irq:18 portE/S:2000(taille=256) mémoire:90500000-90503fff
*-network
description: Ethernet interface
produit: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:03:00.0
nom logique: eth0
version: 10
numéro de série: 28:d2:44:f8:ff:1a
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:89 portE/S:1000(taille=256) mémoire:90404000-90404fff mémoire:90400000-90403ffflsmod
Module Size Used by
ctr 16384 2
ccm 20480 2
bnep 20480 2
rfcomm 69632 8
nls_iso8859_1 16384 1
arc4 16384 2
uvcvideo 90112 0
videobuf2_vmalloc 16384 1 uvcvideo
rtl8723be 94208 0
videobuf2_memops 16384 1 videobuf2_vmalloc
btcoexist 53248 1 rtl8723be
videobuf2_core 53248 1 uvcvideo
rtl8723_common 24576 1 rtl8723be
v4l2_common 16384 1 videobuf2_core
rtl_pci 28672 1 rtl8723be
rtsx_usb_ms 20480 0
rtlwifi 73728 2 rtl_pci,rtl8723be
memstick 20480 1 rtsx_usb_ms
videodev 159744 3 uvcvideo,v4l2_common,videobuf2_core
media 24576 2 uvcvideo,videodev
mac80211 708608 3 rtl_pci,rtlwifi,rtl8723be
snd_hda_codec_hdmi 53248 1
cfg80211 524288 2 mac80211,rtlwifi
snd_hda_codec_conexant 24576 1
snd_hda_codec_generic 69632 1 snd_hda_codec_conexant
intel_rapl 20480 0
intel_powerclamp 20480 0
coretemp 16384 0
kvm 479232 0
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
cryptd 20480 0
joydev 20480 0
serio_raw 16384 0
snd_hda_intel 36864 4 snd_hda_codec_hdmi
snd_hda_controller 32768 1 snd_hda_intel
btusb 40960 0
snd_hda_codec 143360 5 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
bluetooth 491520 22 bnep,btusb,rfcomm
lpc_ich 24576 0
snd_hwdep 20480 1 snd_hda_codec
shpchp 40960 0
snd_soc_rt5640 94208 0
mei_txe 20480 0
snd_intel_sst_acpi 16384 0
mei 90112 1 mei_txe
snd_intel_sst_core 73728 1 snd_intel_sst_acpi
snd_soc_rl6231 16384 1 snd_soc_rt5640
snd_soc_sst_mfld_platform 77824 1 snd_intel_sst_core
snd_soc_core 196608 2 snd_soc_rt5640,snd_soc_sst_mfld_platform
snd_compress 20480 1 snd_soc_core
snd_pcm_dmaengine 16384 1 snd_soc_core
snd_pcm 106496 8 snd_soc_rt5640,snd_soc_core,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_soc_sst_mfld_platform,snd_hda_controller,snd_pcm_dmaengine
ideapad_laptop 24576 0
sparse_keymap 16384 1 ideapad_laptop
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
8250_fintek 16384 0
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
snd_timer 32768 2 snd_pcm,snd_seq
snd 86016 20 snd_soc_core,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,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
dw_dmac 16384 0
i915 1048576 3
dw_dmac_core 24576 1 dw_dmac
intel_smartconnect 16384 0
i2c_hid 20480 0
video 20480 1 i915
hid 110592 1 i2c_hid
drm_kms_helper 126976 1 i915
snd_soc_sst_acpi 16384 0
soundcore 16384 2 snd,snd_hda_codec
i2c_designware_platform 16384 0
i2c_designware_core 16384 1 i2c_designware_platform
rfkill_gpio 16384 0
drm 344064 5 i915,drm_kms_helper
pwm_lpss_platform 16384 0
spi_pxa2xx_platform 24576 0
pwm_lpss 16384 1 pwm_lpss_platform
8250_dw 16384 0
i2c_algo_bit 16384 1 i915
iosf_mbi 16384 1 intel_rapl
mac_hid 16384 0
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 45056 3 lp,ppdev,parport_pc
rtsx_usb_sdmmc 28672 0
rtsx_usb 24576 2 rtsx_usb_sdmmc,rtsx_usb_ms
psmouse 114688 0
r8169 81920 0
ahci 36864 3
mii 16384 1 r8169iwconfig
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"Bbox-51D22A0A"
Mode:Managed Frequency:2.412 GHz Access Point: 64:7C:34:E1:EF:2C
Bit Rate=72.2 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=62/70 Signal level=-48 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:5 Missed beacon:0
lo no wireless extensions.
libahci 32768 1 ahci
sdhci_acpi 16384 0
sdhci 45056 1 sdhci_acpiifconfig
eth0 Link encap:Ethernet HWaddr 28:d2:44:f8:ff:1a
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)
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:314 erreurs:0 :0 overruns:0 frame:0
TX packets:314 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:26445 (26.4 KB) Octets transmis:26445 (26.4 KB)
wlan0 Link encap:Ethernet HWaddr c0:38:96:46:68:b7
inet adr:192.168.1.16 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: fe80::c238:96ff:fe46:68b7/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:1636 erreurs:0 :0 overruns:0 frame:0
TX packets:1232 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:689675 (689.6 KB) Octets transmis:202404 (202.4 KB) sudo iwlist scan
eth0 Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 64:7C:34:E1:EF:2C
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=60/70 Signal level=-50 dBm
Encryption key:on
ESSID:"Bbox-51D22A0A"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000114c26c60d
Extra: Last beacon: 60ms ago
IE: Unknown: 000D42626F782D3531443232413041
IE: Unknown: 010882848B961224486C
IE: Unknown: 030101
IE: Unknown: 2A0104
IE: Unknown: 32040C183060
IE: Unknown: 2D1AEC0103FFFFFF00000000000000000000000000000C1846471100
IE: Unknown: 3D1601000700000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
IE: Unknown: 0B05050017127A
IE: Unknown: 7F0101
IE: Unknown: DD07000C4307000000
IE: Unknown: 0706465220010D10
Cell 02 - Address: 64:7C:34:E1:EF:2D
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=60/70 Signal level=-50 dBm
Encryption key:off
ESSID:"Bouygues Telecom Wi-Fi"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000114c26e241
Extra: Last beacon: 60ms ago
IE: Unknown: 0016426F7579677565732054656C65636F6D2057692D4669
IE: Unknown: 010882848B961224486C
IE: Unknown: 030101
IE: Unknown: 2A0104
IE: Unknown: 32040C183060
IE: Unknown: 2D1AEC0103FFFFFF00000000000000000000000000000C1846471100
IE: Unknown: 3D1601000700000000000000000000000000000000000000
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
IE: Unknown: 0B05050017127A
IE: Unknown: 7F0101
IE: Unknown: DD07000C4307000000
IE: Unknown: 0706465220010D10
lo Interface doesn't support scanninguname -r -m
3.19.0-42-generic x86_64 cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopbacknm-tool
NetworkManager Tool
State: connected (global)
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unavailable
Default: no
HW Address: 28:D2:44:F8:FF:1A
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
- Device: wlan0 [Bbox-51D22A0A] -----------------------------------------------
Type: 802.11 WiFi
Driver: rtl8723be
State: connected
Default: yes
HW Address: C0:38:96:46:68:B7
Capabilities:
Speed: 72 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
SFR_C590: Infra, 24:95:04:B5:C5:94, Freq 2437 MHz, Rate 54 Mb/s, Strength 50 WPA
SFR WiFi Mobile: Infra, 8A:95:04:8A:6B:8F, Freq 2412 MHz, Rate 54 Mb/s, Strength 44 WPA2 Enterprise
FREEBOX_SILVANA_8A: Infra, AA:23:61:45:4B:2C, Freq 2437 MHz, Rate 54 Mb/s, Strength 47 WPA
SFR_6B88: Infra, 24:95:04:8A:6B:8C, Freq 2412 MHz, Rate 54 Mb/s, Strength 44 WPA
SFR WiFi Mobile: Infra, CA:95:04:B5:C5:97, Freq 2437 MHz, Rate 54 Mb/s, Strength 47 WPA2 Enterprise
Bouygues Telecom Wi-Fi: Infra, 64:7C:34:E1:EF:2D, Freq 2412 MHz, Rate 54 Mb/s, Strength 74
SFR WiFi FON: Infra, 8A:95:04:8A:6B:8D, Freq 2412 MHz, Rate 54 Mb/s, Strength 50
SFR WiFi FON: Infra, CA:95:04:B5:C5:95, Freq 2437 MHz, Rate 54 Mb/s, Strength 50
*Bbox-51D22A0A: Infra, 64:7C:34:E1:EF:2C, Freq 2412 MHz, Rate 54 Mb/s, Strength 72 WPA WPA2
FreeWifi: Infra, AA:23:61:45:4B:2E, Freq 2437 MHz, Rate 54 Mb/s, Strength 47
IPv4 Settings:
Address: 192.168.1.16
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.254
DNS: 192.168.1.254sudo rfkill list
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: noHors ligne
#4 Le 27/12/2015, à 21:53
- moko138
Re : [Resolu] Wifi instable
Ah ! Colle ceci
"RTL8723BE" b723 résolu
dans le champ de recherche "forum" en haut à droite...
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Un utilitaire précieux : ncdu
Photo, mini-tutoriel : À la découverte de dcraw
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#5 Le 28/12/2015, à 12:33
- bMarwene
Re : [Resolu] Wifi instable
Oui ça marche, la connexion fonctionne normalement depuis plus de deux heures c bn et c grâce à la commande
echo "options rtl8723be fwlps=0" | sudo tee /etc/modprobe.d/rtl8723be.confMerci beaucoup 
Hors ligne
#6 Le 28/12/2015, à 13:47
- moko138
Re : [Resolu] Wifi instable
Il n'y a plus qu'à marquer "[Résolu]" dans le titre de ton fil, en modifiant ton premier message.
De cette façon, ton fil servira aux suivants merci pour eux !
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Photo, mini-tutoriel : À la découverte de dcraw
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