Pages : 1
#1 Le 30/10/2008, à 11:10
- Dushmol
Signal Wifi très bas (~1-20%)
Bonjour tout le monde, j'ai un problème avec le wifi, mon signal oscille autour de 5-6% avec des pics a 20%.
J'utilise une carte Wifi PCI, j'espère que les resultats des commandes ci-dessous vous en diront plus sur model.
Ce problème est apparu hier apres tout un tas d'erreurs dans les mises à jours, J'ai du réinstaller compiz ainsi que mes pilotes graphiques et depuis j'ai ce signal très faible, est-ce lié?
Avant j'avais 98%, ce qui est toujours le cas sur ma PSP, qui détecte environ 100% du signal en ce moment même.
cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.04
DISTRIB_CODENAME=hardy
DISTRIB_DESCRIPTION="Ubuntu 8.04.1"
lsusb
Bus 006 Device 004: ID 0bda:0111 Realtek Semiconductor Corp.
Bus 006 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 004: ID 04f2:0111 Chicony Electronics Co., Ltd KU-9908 Keyboard
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
Bus 005 Device 001: ID 0000:0000
Bus 004 Device 002: ID 147a:e00d Formosa Industrial Computing, Inc.
Bus 004 Device 001: ID 0000:0000
lspci
00:00.0 Host bridge: ATI Technologies Inc Unknown device 7930
00:02.0 PCI bridge: ATI Technologies Inc Unknown device 7933
00:06.0 PCI bridge: ATI Technologies Inc Unknown device 7936
00:12.0 SATA controller: ATI Technologies Inc SB600 Non-Raid-5 SATA
00:13.0 USB Controller: ATI Technologies Inc SB600 USB (OHCI0)
00:13.1 USB Controller: ATI Technologies Inc SB600 USB (OHCI1)
00:13.2 USB Controller: ATI Technologies Inc SB600 USB (OHCI2)
00:13.3 USB Controller: ATI Technologies Inc SB600 USB (OHCI3)
00:13.4 USB Controller: ATI Technologies Inc SB600 USB (OHCI4)
00:13.5 USB Controller: ATI Technologies Inc SB600 USB Controller (EHCI)
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 14)
00:14.1 IDE interface: ATI Technologies Inc SB600 IDE
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia
00:14.3 ISA bridge: ATI Technologies Inc SB600 PCI to LPC Bridge
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge
01:00.0 VGA compatible controller: ATI Technologies Inc RV610 video device [Radeon HD 2400 PRO]
01:00.1 Audio device: ATI Technologies Inc RV610 audio device [Radeon HD 2400 PRO]
02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8056 PCI-E Gigabit Ethernet Controller (rev 12)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8185 IEEE 802.11a/b/g Wireless LAN Controller (rev 20)
03:02.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link)
sudo lshw -C network
*-network
description: Ethernet interface
product: 88E8056 PCI-E Gigabit Ethernet Controller
vendor: Marvell Technology Group Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth0
version: 12
serial: 00:19:db:d5:4a:dc
capacity: 1GB/s
width: 64 bits
clock: 33MHz
capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.20 firmware=N/A latency=0 link=no module=sky2 multicast=yes port=twisted pair
*-network
description: Wireless interface
product: RTL-8185 IEEE 802.11a/b/g Wireless LAN Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wmaster0
version: 20
serial: 00:1d:0f:b7:78:84
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list logical ethernet physical wireless
configuration: broadcast=yes driver=rtl8180 ip=192.168.1.69 latency=64 maxlatency=64 mingnt=32 module=rtl8180 multicast=yes wireless=IEEE 802.11bg
lsmod
Module Size Used by
ipv6 267780 18
af_packet 23812 4
snd_rtctimer 4640 1
binfmt_misc 12808 1
rfcomm 41744 2
l2cap 25728 13 rfcomm
bluetooth 61156 4 rfcomm,l2cap
tun 12672 0
vboxdrv 76736 0
nfsd 228848 13
auth_rpcgss 43424 1 nfsd
exportfs 6016 1 nfsd
ppdev 10372 0
acpi_cpufreq 10796 0
cpufreq_userspace 5284 0
cpufreq_powersave 2688 0
cpufreq_stats 7104 0
cpufreq_ondemand 9740 4
freq_table 5536 3 acpi_cpufreq,cpufreq_stats,cpufreq_ondemand
cpufreq_conservative 8712 0
container 5632 0
video 19856 0
output 4736 1 video
sbs 15112 0
sbshc 7680 1 sbs
dock 11280 0
battery 14212 0
nfs 262540 0
lockd 67720 3 nfsd,nfs
nfs_acl 4608 2 nfsd,nfs
sunrpc 185500 11 nfsd,auth_rpcgss,nfs,lockd,nfs_acl
iptable_filter 3840 0
ip_tables 14820 1 iptable_filter
x_tables 16132 1 ip_tables
aes_i586 33536 0
dm_crypt 15364 0
dm_mod 62660 1 dm_crypt
ac 6916 0
ndiswrapper 192920 0
sbp2 24072 0
lp 12324 0
snd_seq_dummy 4868 0
snd_seq_oss 35584 0
snd_hda_intel 344856 7
snd_seq_midi 9376 0
snd_pcm_oss 42144 0
arc4 2944 2
snd_mixer_oss 17920 2 snd_pcm_oss
joydev 13120 0
ecb 4480 2
blkcipher 8324 1 ecb
snd_rawmidi 25760 1 snd_seq_midi
snd_seq_midi_event 8320 2 snd_seq_oss,snd_seq_midi
snd_pcm 78596 3 snd_hda_intel,snd_pcm_oss
snd_seq 54224 7 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 24836 4 snd_rtctimer,snd_pcm,snd_seq
snd_page_alloc 11400 2 snd_hda_intel,snd_pcm
snd_hwdep 10500 1 snd_hda_intel
rtl8180 32256 0
snd_seq_device 9612 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
fglrx 1721908 28
usbhid 32128 0
usb_storage 73664 0
lbm_cw_mac80211 233204 1 rtl8180
led_class 6020 0
libusual 19108 1 usb_storage
sky2 47620 0
hid 38784 1 usbhid
parport_pc 36260 1
ati_agp 9996 0
i2c_piix4 9612 0
wmi_acer 9644 0
snd 56996 23 snd_rtctimer,snd_seq_dummy,snd_seq_oss,snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_rawmidi,snd_pcm,snd_seq,snd_timer,snd_hwdep,snd_seq_device
lbm_cw_cfg80211 36448 2 rtl8180,lbm_cw_mac80211
agpgart 34760 2 fglrx,ati_agp
i2c_core 24832 1 i2c_piix4
serio_raw 7940 0
parport 37832 3 ppdev,lp,parport_pc
button 9232 0
shpchp 34452 0
pci_hotplug 30880 1 shpchp
evdev 13056 5
eeprom_93cx6 3200 1 rtl8180
soundcore 8800 2 snd
psmouse 40336 0
pcspkr 4224 0
ext3 136840 2
jbd 48404 1 ext3
mbcache 9600 1 ext3
ide_cd 32544 0
cdrom 37408 1 ide_cd
pata_acpi 8320 0
pata_atiixp 8960 0
ata_generic 8324 0
sg 36880 0
sd_mod 30720 4
ohci1394 33584 0
floppy 59588 0
ieee1394 93752 2 sbp2,ohci1394
ehci_hcd 37900 0
atiixp 5648 0 [permanent]
ohci_hcd 26640 0
ide_core 113996 2 ide_cd,atiixp
ahci 28548 3
libata 159344 4 pata_acpi,pata_atiixp,ata_generic,ahci
scsi_mod 151436 5 sbp2,usb_storage,sg,sd_mod,libata
usbcore 146412 7 ndiswrapper,usbhid,usb_storage,libusual,ehci_hcd,ohci_hcd
thermal 16796 0
processor 37384 2 acpi_cpufreq,thermal
fan 5636 0
fbcon 42912 0
tileblit 3456 1 fbcon
font 9472 1 fbcon
bitblit 6784 1 fbcon
softcursor 3072 1 bitblit
fuse 50708 1
iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wmaster0 no wireless extensions.
wlan1 IEEE 802.11bg ESSID:"SpeedTouchAB79C5"
Mode:Managed Frequency:2.412 GHz Access Point: 00:14:7F:D9:73:2B
Bit Rate=54 Mb/s Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
Power Management:off
Link Quality=6/100 Signal level:15/65
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
ifconfig
eth0 Link encap:Ethernet HWaddr 00:19:db:d5:4a:dc
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)
Interruption:19
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:16436 Metric:1
Packets reçus:378 erreurs:0 :0 overruns:0 frame:0
TX packets:378 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:22340 (21.8 KB) Octets transmis:22340 (21.8 KB)
wlan1 Link encap:Ethernet HWaddr 00:1d:0f:b7:78:84
inet adr:192.168.1.69 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: fe80::21d:fff:feb7:7884/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:15687 erreurs:0 :0 overruns:0 frame:0
TX packets:15392 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:9085300 (8.6 MB) Octets transmis:4029380 (3.8 MB)
wmaster0 Link encap:UNSPEC HWaddr 00-1D-0F-B7-78-84-00-00-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING 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)
iwlist scan
lo Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
wmaster0 Interface doesn't support scanning.
wlan1 Scan completed :
Cell 01 - Address: 00:14:7F:D9:73:2B
ESSID:"SpeedTouchAB79C5"
Mode:Master
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=8/100 Signal level:15/65
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
Extra:tsf=0000000c1754b3d8
Extra: Last beacon: 12ms ago
uname -r -m
2.6.24-21-generic i686
cat /etc/network/interfaces
auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0
nm-tool
NetworkManager Tool
State: connected
- Device: wlan1 ----------------------------------------------------------------
NM Path: /org/freedesktop/NetworkManager/Devices/wlan1
Type: 802.11 Wireless
Driver: rtl8180
Active: yes
HW Address: 00:1D:0F:B7:78:84
Capabilities:
Supported: yes
Speed: 54 Mb/s
Wireless Settings
Scanning: yes
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Networks (* = Current Network)
*SpeedTouchAB79C5: Infrastructure Mode, Freq 2.412 MHz, Rate 62 Mb/s, Strength 15%, Encrypted (WEP)
IP Settings:
IP Address: 192.168.1.69
Subnet Mask: 255.255.255.0
Broadcast: 192.168.1.255
Gateway: 192.168.1.254
Primary DNS: 192.168.1.254
Secondary DNS: 0.0.0.0
- Device: eth0 ----------------------------------------------------------------
NM Path: /org/freedesktop/NetworkManager/Devices/eth0
Type: Wired
Driver: sky2
Active: no
HW Address: 00:19:DB:D5:4A:DC
Capabilities:
Supported: yes
Carrier Detect: yes
Wired Settings
Hardware Link: no
Pfiouu voilà
Merci d'avance.
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