Forum Ubuntu-it

risultato:

iwlist wlan0 scan
wlan0    Scan completed :
          Cell 01 - Address: 00:0F:CC:30:87:88
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=42/70  Signal level=-68 dBm 
                    Encryption key:on
                    ESSID:"Ae wireless"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=00000011ee712122
                    Extra: Last beacon: 7416ms ago
                    IE: Unknown: 000B416520776972656C657373
                    IE: Unknown: 010582848B962C
                    IE: Unknown: 030101
                    IE: Unknown: 2A0100
                    IE: Unknown: 32080C1218243048606C
          Cell 02 - Address: 00:21:1E:4F:F1:00
                    Channel:13
                    Frequency:2.472 GHz (Channel 13)
                    Quality=31/70  Signal level=-79 dBm 
                    Encryption key:on
                    ESSID:"POB-43109"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000034168e181a0
                    Extra: Last beacon: 6472ms ago
                    IE: Unknown: 0009504F422D3433313039
                    IE: Unknown: 010582848B962C
                    IE: Unknown: 03010D
                    IE: Unknown: 2A0104
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32080C1218243048606C
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
          Cell 03 - Address: 50:67:F0:C8:79:20
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=70/70  Signal level=8 dBm 
                    Encryption key:on
                    ESSID:"pattini"
                    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=0000000007e90f5d
                    Extra: Last beacon: 136ms ago
                    IE: Unknown: 000770617474696E69
                    IE: Unknown: 010882848B961224486C
                    IE: Unknown: 030106
                    IE: Unknown: 2A0106
                    IE: Unknown: 32040C183060
                    IE: Unknown: 2D1A6E1017FFFF0000010000000000000000000000000C0000000000
                    IE: Unknown: 3D1606070700000000000000000000000000000000000000
                    IE: Unknown: 3E0100
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
                    IE: Unknown: 7F0101
                    IE: Unknown: DD07000C4304000000
                    IE: Unknown: 0706434820010E10
                    IE: Unknown: DD1E00904C336E1017FFFF0000010000000000000000000000000C0000000000
                    IE: Unknown: DD1A00904C3406070700000000000000000000000000000000000000

Da terminale postami questo comando:
La scheda integrata wireless Broadcom dovrebbe essere eth1, perchè viene riconosciuta come wlan0, o hai inserito un'altra chiavetta wireless usb?

wlan0     IEEE 802.11bg  ESSID:off/any
         Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm  
         Retry  long limit:7   RTS thr:off   Fragment thr:off
         Power Management:off

Da terminale dai questo comando:
Vedi come va ora il wireless.

risultati:

sudo lshw -c network
[sudo] password for marco:
  *-network              [D^[[D^[[D
      description: Network controller
      product: BCM4312 802.11b/g LP-PHY
      vendor: Broadcom Corporation
      physical id: 0
      bus info: pci@0000:01:00.0
      version: 01
      width: 64 bits
      clock: 33MHz
      capabilities: pm msi pciexpress bus_master cap_list
      configuration: driver=b43-pci-bridge latency=0
      resources: irq:16 memory:feafc000-feafffff
  *-network
      description: Ethernet interface
      product: AR8132 Fast Ethernet
      vendor: Atheros Communications
      physical id: 0
      bus info: pci@0000:02:00.0
      logical name: eth0
      version: c0
      serial: 00:25:b3:4e:53:3e
      size: 100Mbit/s
      capacity: 100Mbit/s
      width: 64 bits
      clock: 33MHz
      capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
      configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI duplex=full firmware=N/A ip=192.168.1.33 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
      resources: irq:43 memory:febc0000-febfffff ioport:ec80(size=128)
  *-network
      description: Wireless interface
      physical id: 1
      logical name: wlan0
      serial: 00:25:56:2d:64:09
      capabilities: ethernet physical wireless
      configuration: broadcast=yes driver=b43 driverversion=2.6.38-8-generic firmware=478.104 link=no multicast=yes wireless=IEEE 802.11bg
:~$ sudo iwconfig wlan0 power on
Error for wireless request "Set Power Management" (8B2C) :
    SET failed on device wlan0 ; Operation not supported.

il secondo comando non ha avuto successo. Vedo poi che il firmware è sempre n/a. È giusto?

Da terminale postami questi comandi:

risultati

~$ cat /etc/modprobe.d/blacklist.conf
# This file lists those modules which we don't want to be loaded by
# alias expansion, usually so some other driver will be loaded for the
# device instead.

# evbug is a debug tool that should be loaded explicitly
blacklist evbug

# these drivers are very simple, the HID drivers are usually preferred
blacklist usbmouse
blacklist usbkbd

# replaced by e100
blacklist eepro100

# replaced by tulip
blacklist de4x5

# causes no end of confusion by creating unexpected network interfaces
blacklist eth1394

# snd_intel8x0m can interfere with snd_intel8x0, doesn't seem to support much
# hardware on its own (Ubuntu bug #2011, #6810)
blacklist snd_intel8x0m

# Conflicts with dvb driver (which is better for handling this device)
blacklist snd_aw2

# causes failure to suspend on HP compaq nc6000 (Ubuntu: #10306)
blacklist i2c_i801

# replaced by p54pci
blacklist prism54

# replaced by b43 and ssb.
blacklist bcm43xx

# most apps now use garmin usb driver directly (Ubuntu: #114565)
blacklist garmin_gps

# replaced by asus-laptop (Ubuntu: #184721)
blacklist asus_acpi

# low-quality, just noise when being used for sound playback, causes
# hangs at desktop session start (Ubuntu: #246969)
blacklist snd_pcsp

# ugly and loud noise, getting on everyone's nerves; this should be done by a
# nice pulseaudio bing (Ubuntu: #77010)
blacklist pcspkr

# EDAC driver for amd76x clashes with the agp driver preventing the aperture
# from being initialised (Ubuntu: #297750). Blacklist so that the driver
# continues to build and is installable for the few cases where its
# really needed.
blacklist amd76x_edac
# blacklist ssb
# blacklist b43
# blacklist ssb
# blacklist b43
:~$ cat /etc/modprobe.d/b43.conf
options b43 pio=1 qos=0
:~$ rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no

Hai scritto:

*-network
      description: Wireless interface
      physical id: 1
      logical name: wlan0
      serial: 00:25:56:2d:64:09
      capabilities: ethernet physical wireless
      configuration: broadcast=yes driver=b43 driverversion=2.6.38-8-generic firmware=478.104 link=no multicast=yes wireless=IEEE 802.11bg

il firmware c'è, è quello evidenziato in rosso.

Come mai non si connette alla rete è un mistero!

se non lo capisci tu figurati io!

Se va avanti così disintallo la 11 e rimetto la 9 dove tutto funzionava.

Ma non è che non funziona perché manca ancora qualcosa?

Se non riesci a connetterti ad Internet con la scheda di rete integrata Broadcom il problema potrebbe essere il NM che fa i capricci.

In questo link hanno risolto con Wicd; installa Wicd e rimuovi Network manager. perchè entrambi vanno in conflitto:

http://forum.ubuntu-it.org/viewtopic.php?t=418502

Da terminale dai questo comando:
Spero che con wicd tu risolva il problema del wireless.

wicd installato e ... non funziona. Impossibile connettersi a delle reti wireless.

Visto che ho riscontrato problemi con 2 softwares comincio a pensare che a creare fastidi sia la parte hardware. PRoverò con una pennetta.

Dopo attente riflessioni in sistema ha accettato WICD che ora funziona.

finalmente ho recuperato l'accesso alle reti wireless!

Ringrazio sentitamente tutte le persone che sono intervenute nel post e mi hanno fornito le istruzioni per risolvere il problema.