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#1 Le 19/06/2015, à 02:16
- Ink
Perte de capacité d'affichage de réseaux wifi
Bonjour,
J'ai installé un Lubuntu sur le pc d'un pote qui me signale qu'il voit moins de réseaux wifi que sous windows (depuis le meme endroit).
J ai d abord pensé qu il s agissait d un problème de driver et ai donc suivi ce tutoriel: http://www.upubuntu.com/2012/02/how-to- … alink.html et me suis retrouvée avec un wifi qui ne fonctionnait plus du tout.
Ce dernier problème est réglé mais on revient au premier. Il y a bien ces deux possibilités:
- https://atinfinity.wordpress.com/2011/0 … ntu-11-04/ (en vrai, j y comprends pas grand chose)
- https://doc.ubuntu-fr.org/ndiswrapper (mais je voudrais éviter de mettre du windows sur la machine)
Mais vu la réaction à la première tentative, je me demande si le problème est celui-ci et j ai peur de tout casser.
Auriez-vous une idée, s il vous plaît?
Merci.
Les infos demandées:
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=15.04
DISTRIB_CODENAME=vivid
DISTRIB_DESCRIPTION="Ubuntu 15.04"
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ lsusb
Bus 002 Device 003: ID 05c8:021e Cheng Uei Precision Industry Co., Ltd (Foxlink)
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
01:00.0 Network controller: Ralink corp. RT5390 Wireless 802.11n 1T/1R PCIe
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01)
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ lspci -nn | grep -i net
01:00.0 Network controller [0280]: Ralink corp. RT5390 Wireless 802.11n 1T/1R PCIe [1814:5390]
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ lspci -k
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
Subsystem: Hewlett-Packard Company Device 166f
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
Subsystem: Hewlett-Packard Company Device 166f
Kernel driver in use: i915
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
Subsystem: Hewlett-Packard Company Device 166f
Kernel driver in use: mei_me
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
Subsystem: Hewlett-Packard Company Device 166f
Kernel driver in use: ehci-pci
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
Subsystem: Hewlett-Packard Company Device 166f
Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
Kernel driver in use: pcieport
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
Kernel driver in use: pcieport
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5)
Kernel driver in use: pcieport
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
Subsystem: Hewlett-Packard Company Device 166f
Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05)
Subsystem: Hewlett-Packard Company Device 166f
Kernel driver in use: lpc_ich
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05)
Subsystem: Hewlett-Packard Company Device 166f
Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
Subsystem: Hewlett-Packard Company Device 166f
01:00.0 Network controller: Ralink corp. RT5390 Wireless 802.11n 1T/1R PCIe
Subsystem: Hewlett-Packard Company U98Z077.00 Half-size Mini PCIe Card
Kernel driver in use: rt2800pci
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)
Subsystem: Hewlett-Packard Company Device 166f
Kernel driver in use: r8169
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01)
Subsystem: Hewlett-Packard Company Device 166f
Kernel driver in use: rtsx_pci
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ sudo lshw -C network
*-network
descripción: Interfaz inalámbrica
producto: RT5390 Wireless 802.11n 1T/1R PCIe
fabricante: Ralink corp.
id físico: 0
información del bus: pci@0000:01:00.0
nombre lógico: wlan0
versión: 00
serie: 90:00:4e:54:f3:46
anchura: 32 bits
reloj: 33MHz
capacidades: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuración: broadcast=yes driver=rt2800pci driverversion=3.19.0-21-generic firmware=0.34 ip=192.168.43.202 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
recursos: irq:16 memoria:c2500000-c250ffff
*-network
descripción: Ethernet interface
producto: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
fabricante: Realtek Semiconductor Co., Ltd.
id físico: 0
información del bus: pci@0000:02:00.0
nombre lógico: eth0
versión: 05
serie: 2c:27:d7:e1:1e:77
tamaño: 10Mbit/s
capacidad: 100Mbit/s
anchura: 64 bits
reloj: 33MHz
capacidades: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuración: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8105e-1.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
recursos: irq:25 ioport:3000(size=256) memoria:c0404000-c0404fff memoria:c0400000-c0403fff
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ lsmod
Module Size Used by
ctr 16384 3
ccm 20480 3
snd_hda_codec_hdmi 53248 1
uvcvideo 90112 0
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
snd_hda_codec_idt 65536 1
snd_hda_codec_generic 69632 1 snd_hda_codec_idt
snd_hda_intel 32768 3
videobuf2_core 49152 1 uvcvideo
snd_hda_controller 32768 1 snd_hda_intel
v4l2_common 16384 1 videobuf2_core
videodev 159744 3 uvcvideo,v4l2_common,videobuf2_core
snd_hda_codec 143360 5 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
media 24576 2 uvcvideo,videodev
intel_rapl 20480 0
snd_hwdep 20480 1 snd_hda_codec
arc4 16384 2
iosf_mbi 16384 1 intel_rapl
rt2800pci 16384 0
rt2800mmio 24576 1 rt2800pci
x86_pkg_temp_thermal 16384 0
rt2800lib 94208 2 rt2800pci,rt2800mmio
snd_pcm 106496 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
intel_powerclamp 20480 0
rt2x00pci 16384 1 rt2800pci
rt2x00mmio 16384 2 rt2800pci,rt2800mmio
coretemp 16384 0
hp_wmi 16384 0
snd_seq_midi 16384 0
sparse_keymap 16384 1 hp_wmi
rt2x00lib 57344 5 rt2x00pci,rt2800lib,rt2800pci,rt2800mmio,rt2x00mmio
mac80211 724992 3 rt2x00lib,rt2x00pci,rt2800lib
kvm_intel 151552 0
kvm 483328 1 kvm_intel
cfg80211 540672 2 mac80211,rt2x00lib
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 1 snd_seq_midi
snd_seq 69632 2 snd_seq_midi_event,snd_seq_midi
eeprom_93cx6 16384 1 rt2800pci
rtsx_pci_ms 20480 0
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
memstick 20480 1 rtsx_pci_ms
crc_ccitt 16384 1 rt2800lib
snd_timer 32768 2 snd_pcm,snd_seq
crct10dif_pclmul 16384 0
joydev 20480 0
snd 90112 17 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_idt,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device
serio_raw 16384 0
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
cryptd 20480 1 ghash_clmulni_intel
shpchp 40960 0
soundcore 16384 2 snd,snd_hda_codec
mac_hid 16384 0
hp_wireless 16384 0
mei_me 20480 0
lpc_ich 24576 0
mei 90112 1 mei_me
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 45056 3 lp,ppdev,parport_pc
autofs4 40960 2
i915 1052672 2
rtsx_pci_sdmmc 24576 0
i2c_algo_bit 16384 1 i915
drm_kms_helper 122880 1 i915
psmouse 118784 0
drm 344064 4 i915,drm_kms_helper
ahci 36864 2
r8169 81920 0
libahci 32768 1 ahci
rtsx_pci 49152 2 rtsx_pci_ms,rtsx_pci_sdmmc
mii 16384 1 r8169
wmi 20480 1 hp_wmi
video 20480 1 i915
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ iwconfig
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"XPERIA U_a34a"
Mode:Managed Frequency:2.437 GHz Access Point: 20:54:76:E3:D1:15
Bit Rate=54 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=59/70 Signal level=-51 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.
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ ifconfig
eth0 Link encap:Ethernet direcciónHW 2c:27:d7:e1:1e:77
ACTIVO DIFUSIÓN MULTICAST MTU:1500 Métrica:1
Paquetes RX:0 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:0 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:1000
Bytes RX:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Bucle local
Direc. inet:127.0.0.1 Másc:255.0.0.0
Dirección inet6: ::1/128 Alcance:Anfitrión
ACTIVO BUCLE FUNCIONANDO MTU:65536 Métrica:1
Paquetes RX:740 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:740 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:0
Bytes RX:68241 (68.2 KB) TX bytes:68241 (68.2 KB)
wlan0 Link encap:Ethernet direcciónHW 90:00:4e:54:f3:46
Direc. inet:192.168.43.202 Difus.:192.168.43.255 Másc:255.255.255.0
Dirección inet6: fe80::9200:4eff:fe54:f346/64 Alcance:Enlace
ACTIVO DIFUSIÓN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
Paquetes RX:5956 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:6083 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:1000
Bytes RX:5202817 (5.2 MB) TX bytes:686196 (686.1 KB)
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ sudo iwlist scan
eth0 Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 20:54:76:E3:D1:15
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=49/70 Signal level=-61 dBm
Encryption key:on
ESSID:"XPERIA U_a34a"
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=0000000290c3364e
Extra: Last beacon: 28ms ago
IE: Unknown: 000D58504552494120555F61333461
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 050400020000
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
lo Interface doesn't support scanning.
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ uname -r -m
3.19.0-21-generic x86_64
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ nm-tool
No se ha encontrado la orden «nm-tool», quizás quiso decir:
La orden «dm-tool» del paquete «lightdm» (main)
nm-tool: no se encontró la orden
carlos@carlos-HP-Pavilion-g6-Notebook-PC:~$ sudo rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: noDernière modification par Ink (Le 19/06/2015, à 02:19)
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