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#1 Le 23/02/2014, à 01:00

taimpus

LUBUNTU :débit wifi très faible avec box à proximité

Bonsoir la communauté,

J'avais posé il y a longtemps un topic qui ressemblait très fortement à mon problème sauf que j'avais installé ubuntu et non lubuntu(mon os actuel).

Je pensais que faire:

gksudo gedit /etc/modprobe.d/blacklist.conf
blacklist bcma 
blacklist brcmsmac 

marcherait car ça avait résolu mon problème à l'époque, mais avec Lubuntu ça me désactive carrément le wifi.

Quelqu'un aurait une solution car j'aimerai bien resté sur cette os qui est extrêmement léger et rapide hmm

Voici mes informations réseaux :

cat /etc/lsb-release

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=13.10
DISTRIB_CODENAME=saucy
DISTRIB_DESCRIPTION="Ubuntu 13.10"

lsusb

Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 002: ID 0a5c:21e3 Broadcom Corp. HP Portable Valentine
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 04e8:6863 Samsung Electronics Co., Ltd 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 05c8:032b Cheng Uei Precision Industry Co., Ltd (Foxlink) 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

lspci

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Complex
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler [Radeon HD 6320]
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler HDMI Audio
00:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Port
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode]
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller (rev 42)
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) (rev 40)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 LPC host controller (rev 40)
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge (rev 40)
00:15.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB700/SB800/SB900 PCI to PCI bridge (PCIE port 0)
00:15.1 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB700/SB800/SB900 PCI to PCI bridge (PCIE port 1)
00:16.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
00:16.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 0 (rev 43)
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 6
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 5
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 7
03:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)

lspci -nn | grep -i net

03:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01)
07:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)

lspci -k

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Complex
	Subsystem: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Complex
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler [Radeon HD 6320]
	Subsystem: Hewlett-Packard Company Device 3387
	Kernel driver in use: radeon
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler HDMI Audio
	Subsystem: Hewlett-Packard Company Device 3387
	Kernel driver in use: snd_hda_intel
00:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Port
	Kernel driver in use: pcieport
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode]
	Subsystem: Hewlett-Packard Company Device 3387
	Kernel driver in use: ahci
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
	Subsystem: Hewlett-Packard Company Device 3387
	Kernel driver in use: ohci-pci
00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller
	Subsystem: Hewlett-Packard Company Device 3387
	Kernel driver in use: ehci-pci
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
	Subsystem: Hewlett-Packard Company Device 3387
	Kernel driver in use: ohci-pci
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller
	Subsystem: Hewlett-Packard Company Device 3387
	Kernel driver in use: ehci-pci
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller (rev 42)
	Subsystem: Hewlett-Packard Company Device 3387
	Kernel driver in use: piix4_smbus
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) (rev 40)
	Subsystem: Hewlett-Packard Company Device 3387
	Kernel driver in use: snd_hda_intel
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 LPC host controller (rev 40)
	Subsystem: Hewlett-Packard Company Device 3387
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge (rev 40)
00:15.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB700/SB800/SB900 PCI to PCI bridge (PCIE port 0)
	Kernel driver in use: pcieport
00:15.1 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB700/SB800/SB900 PCI to PCI bridge (PCIE port 1)
	Kernel driver in use: pcieport
00:16.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
	Subsystem: Hewlett-Packard Company Device 3387
	Kernel driver in use: ohci-pci
00:16.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller
	Subsystem: Hewlett-Packard Company Device 3387
	Kernel driver in use: ehci-pci
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 0 (rev 43)
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 3
	Kernel driver in use: k10temp
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 6
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 5
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 7
03:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)
	Subsystem: Hewlett-Packard Company Device 1795
	Kernel driver in use: bcma-pci-bridge
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
	Subsystem: Hewlett-Packard Company Device 3387
	Kernel driver in use: r8169

sudo lshw -C network

  *-network               
       description: Network controller
       produit: BCM4313 802.11bgn Wireless Network Adapter
       fabriquant: Broadcom Corporation
       identifiant matériel: 0
       information bus: pci@0000:03:00.0
       version: 01
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress bus_master cap_list
       configuration: driver=bcma-pci-bridge latency=0
       ressources: irq:16 mémoire:f0200000-f0203fff
  *-network
       description: Ethernet interface
       produit: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       fabriquant: Realtek Semiconductor Co., Ltd.
       identifiant matériel: 0
       information bus: pci@0000:07:00.0
       nom logique: eth0
       version: 06
       numéro de série: ec:9a:74:40:91:9d
       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=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       ressources: irq:41 portE/S:2000(taille=256) mémoire:f0104000-f0104fff mémoire:f0100000-f0103fff
  *-network:0
       description: Ethernet interface
       identifiant matériel: 2
       nom logique: usb0
       numéro de série: 02:34:3d:68:6e:04
       fonctionnalités: ethernet physical
       configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.30 link=yes multicast=yes
  *-network:1
       description: Interface réseau sans fil
       identifiant matériel: 3
       nom logique: wlan0
       numéro de série: e4:d5:3d:68:e6:7d
       fonctionnalités: ethernet physical wireless
       configuration: broadcast=yes driver=brcmsmac driverversion=3.11.0-12-generic firmware=610.812 ip=192.168.1.16 link=yes multicast=yes wireless=IEEE 802.11bgn

lsmod

Module                  Size  Used by
arc4                   12608  2 
zram                   18525  2 
btusb                  28267  0 
snd_hda_codec_idt      50341  1 
snd_hda_codec_hdmi     41276  1 
brcmsmac              562767  0 
cordic                 12574  1 brcmsmac
brcmutil               15618  1 brcmsmac
b43                   387185  0 
joydev                 17377  0 
mac80211              596969  2 b43,brcmsmac
parport_pc             32701  0 
ppdev                  17671  0 
cfg80211              479757  3 b43,brcmsmac,mac80211
ssb                    57932  1 b43
hp_wmi                 14062  0 
sparse_keymap          13948  1 hp_wmi
rfcomm                 69070  12 
bnep                   19564  2 
bluetooth             371874  22 bnep,btusb,rfcomm
uvcvideo               80885  0 
videobuf2_vmalloc      13216  1 uvcvideo
kvm                   431315  0 
videobuf2_memops       13362  1 videobuf2_vmalloc
videobuf2_core         40469  1 uvcvideo
videodev              133390  2 uvcvideo,videobuf2_core
microcode              23518  0 
rndis_host             14503  0 
cdc_ether              14351  1 rndis_host
usbnet                 39495  2 rndis_host,cdc_ether
psmouse                97626  0 
serio_raw              13413  0 
k10temp                13126  0 
sp5100_tco             13979  0 
bcma                   46670  3 b43,brcmsmac
snd_hda_intel          48171  1 
snd_hda_codec         188738  3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel
snd_hwdep              13602  1 snd_hda_codec
snd_pcm               102033  3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
snd_page_alloc         18710  2 snd_pcm,snd_hda_intel
snd_seq_midi           13324  0 
snd_seq_midi_event     14899  1 snd_seq_midi
snd_rawmidi            30095  1 snd_seq_midi
snd_seq                61560  2 snd_seq_midi_event,snd_seq_midi
snd_seq_device         14497  3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer              29433  2 snd_pcm,snd_seq
radeon               1402449  2 
i2c_piix4              22106  0 
snd                    69141  13 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_idt,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
ttm                    83995  1 radeon
drm_kms_helper         52651  1 radeon
ohci_pci               13561  0 
drm                   296739  4 ttm,drm_kms_helper,radeon
soundcore              12680  1 snd
wmi                    19070  1 hp_wmi
i2c_algo_bit           13413  1 radeon
hp_accel               26012  0 
lis3lv02d              20156  1 hp_accel
video                  19318  0 
input_polldev          13896  1 lis3lv02d
lp                     17759  0 
parport                42299  3 lp,ppdev,parport_pc
mac_hid                13205  0 
r8169                  67341  0 
mii                    13934  2 r8169,usbnet
ahci                   25819  2 
libahci                31898  1 ahci

iwconfig

usb0      no wireless extensions.

eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"Livebox-XXXX"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 68:15:90:1E:CD:E6   
          Bit Rate=1 Mb/s   Tx-Power=19 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=34/70  Signal level=-76 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:3  Invalid misc:11   Missed beacon:0

ifconfig

eth0      Link encap:Ethernet  HWaddr ec:9a:74:40:91:9d  
          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:687 erreurs:0 :0 overruns:0 frame:0
          TX packets:687 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:61056 (61.0 KB) Octets transmis:61056 (61.0 KB)

usb0      Link encap:Ethernet  HWaddr 02:34:3d:68:6e:04  
          inet adr:192.168.42.30  Bcast:192.168.42.255  Masque:255.255.255.0
          adr inet6: fe80::34:3dff:fe68:6e04/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:14382 erreurs:1 :0 overruns:0 frame:1
          TX packets:9435 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:16659175 (16.6 MB) Octets transmis:1593651 (1.5 MB)

wlan0     Link encap:Ethernet  HWaddr e4:d5:3d:68:e6:7d  
          inet adr:192.168.1.16  Bcast:192.168.1.255  Masque:255.255.255.0
          adr inet6: fe80::e6d5:3dff:fe68:e67d/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:168 erreurs:0 :0 overruns:0 frame:0
          TX packets:182 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:20458 (20.4 KB) Octets transmis:22081 (22.0 KB)

sudo iwlist scan

usb0      Interface doesn't support scanning.

eth0      Interface doesn't support scanning.

lo        Interface doesn't support scanning.

wlan0     Scan completed :
          Cell 01 - Address: 68:15:90:1E:CD:E6
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=33/70  Signal level=-77 dBm  
                    Encryption key:on
                    ESSID:"Livebox-XXXX"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=000000fc62505614
                    Extra: Last beacon: 20ms ago
                    IE: Unknown: 000C4C697665626F782D43444536
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 030101
                    IE: Unknown: 0706465220010D14
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: 2D1AAD011BFFFF0000000000000000000000000000000406E4A70C00
                    IE: Unknown: 331AAD011BFFFF0000000000000000000000000000000406E4A70C00
                    IE: Unknown: 3D1601080000000000000000000000000000000000000000
                    IE: Unknown: 341601080000000000000000000000000000000000000000
                    IE: Unknown: DD180050F2020101820003A4000027A4000042435E0062322F00
                    IE: Unknown: DD0900037F01010000FF7F
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD9E0050F204104A0001101044000102103B000103104700103638313539304145834445360038313510210008536167656D636F6D10230016536167656D636F6D46617374333936355F4C42322E381024000C53475F4C42335F312E322E311042000F4C4B313333313144503434303632381054000800060050F2040001101100094C697665626F782033100800020006103C0001011049000600372A000120

uname -r -m

3.11.0-12-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

NetworkManager Tool

State: connected (global)

- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             unavailable
  Default:           no
  HW Address:        EC:9A:74:40:91:9D

  Capabilities:
    Carrier Detect:  yes

  Wired Properties
    Carrier:         off


- Device: wlan0  [Livebox-XXXX] ------------------------------------------------
  Type:              802.11 WiFi
  Driver:            brcmsmac
  State:             connected
  Default:           no
  HW Address:        E4:D5:3D:68:E6:7D

  Capabilities:
    Speed:           1 Mb/s

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points (* = current AP)
    *Livebox-XXXX:   Infra, 68:15:90:1E:CD:E6, Freq 2412 MHz, Rate 54 Mb/s, Strength 49 WPA WPA2

  IPv4 Settings:
    Address:         192.168.1.16
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.1.1

    DNS:             192.168.1.1


- Device: usb0  [Connexion filaire 1] ------------------------------------------
  Type:              Wired
  Driver:            rndis_host
  State:             connected
  Default:           yes
  HW Address:        02:34:3D:68:6E:04

  Capabilities:
    Carrier Detect:  yes

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         192.168.42.30
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.42.129

    DNS:             192.168.42.129

sudo rfkill list

0: hp-wifi: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: hp-bluetooth: Bluetooth
	Soft blocked: no
	Hard blocked: no
2: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
3: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no

Hors ligne

#2 Le 23/02/2014, à 02:06

f.x0

Re : LUBUNTU :débit wifi très faible avec box à proximité

Bonjour taimpus,
essaies :

sudo iwconfig wlan0 rate 54M

puis postes le résultat de

sudo iwlist scan

ensuite redémarres le PC
et re-postes le résultat de

sudo iwlist scan

Le débit est-il meilleur ?


SOPI

Hors ligne