network-manager does not show network list while iwlist does

[Tom R]

Binary package hint: network-manager

Version: 0.6.6-0ubuntu5
Ubuntu version: Hardy Heron 8.04 RC (clean install, not dist upgrade)

I have a Dell XPS m1530 laptop with an Intel 4965AGN wireless network card.

Initially, the card worked perfectly, out of the box. Yesterday I flicked the wireless switch (a slider, not a key combination like Fn+F2). As expected, wifi and bluetooth dropped out. I then turned the switch back on.

Network-manager no longer sees my wireless card, only my (disconnected) wired NIC. I have rebooted several times. If I setup the connection manually using network-admin, I can connect to the internet through the card fine.

What is weird is that iwlist works perfectly and DOES show wifi networks. Running nm-tool only shows eth0.

When I flicked the switch back on, only the bluetooth light illuminated, no WiFi light. I have rebooted many times and I cannot get the light to come back on, this may or may not be related.

Here is some diagnostic info which may help.

rixth@king:~$ cat /etc/network/interfaces
auto lo
iface lo inet loopback
iface wlan0 inet dhcp
wpa-psk *snipped*
wpa-driver wext
wpa-key-mgmt WPA-PSK
wpa-proto WPA
wpa-ssid linksys
auto wlan0

rixth@king:~$ nm-tool

NetworkManager Tool

State: connected

- Device: eth0 ----------------------------------------------------------------
  NM Path: /org/freedesktop/NetworkManager/Devices/eth0
  Type: Wired
  Driver:
  Active: no
  HW Address: 00:1D:09:3F:1A:E3

  Capabilities:
    Supported: yes
    Carrier Detect: yes

  Wired Settings
    Hardware Link: no

rixth@king:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:1d:09:3f:1a:e3
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
          Interrupt:16

lo Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING MTU:16436 Metric:1
          RX packets:2770 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2770 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:141816 (138.4 KB) TX bytes:141816 (138.4 KB)

wlan0 Link encap:Ethernet HWaddr 00:1f:3b:02:2f:d1
          inet addr:192.168.1.103 Bcast:192.168.1.255 Mask:255.255.255.0
          inet6 addr: fe80::21f:3bff:fe02:2fd1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:5857 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4342 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:5281928 (5.0 MB) TX bytes:593386 (579.4 KB)

wmaster0 Link encap:UNSPEC HWaddr 00-1F-3B-02-2F-D1-00-00-00-00-00-00-00-00-00-00
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

rixth@king:~$ sudo iwlist wlan0 scanning
[sudo] password for rixth:
wlan0 Scan completed :
          Cell 01 - Address: 00:16:B6:B5:2C:9E
                    ESSID:"linksys"
                    Mode:Master
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=87/100 Signal level=-46 dBm Noise level=-127 dBm
                    Encryption key:on
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    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=0000000aafc57b13
          Cell 02 - Address: 00:18:39:6A:78:84
                    ESSID:"linksys"
                    Mode:Master
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=49/100 Signal level=-79 dBm Noise level=-127 dBm
                    Encryption key:on
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
                              6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Extra:tsf=000000ab876610dd
          Cell 03 - Address: 00:1D:7E:A9:E6:D8
                    ESSID:"baobao"
                    Mode:Master
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=80/100 Signal level=-54 dBm Noise level=-127 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
                              6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Extra:tsf=00000427715a966b
          Cell 04 - Address: 00:14:BF:48:C1:F0
                    ESSID:"linksyswag54g"
                    Mode:Master
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=71/100 Signal level=-63 dBm Noise level=-127 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
                              12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s; 48 Mb/s
                              54 Mb/s
                    Extra:tsf=00000101c921ab61

[Pablo Castellano (pablocastellano)]

Remove all related to wlan0 from /etc/network/interfaces.
networkmanager only manages interfaces that are not mentioned in that file.
Solved?

[Mario Limonciello (superm1)]

Since the commenter hasn't responded, i'm going to close up this bug. The last comment does indicate that this is the expected behavior of network manager anyhow when you have devices in /etc/network/interfaces.

[qrto (qrto)]

Hey, i can confirm that, though i'm using knetworkmanager. I can see available wireless networks with iwlist scan, but knetworkmanager applet says that wlan0 is down, and shows no networks available.