[Solved] wireless does not work: no scan results

bharath1097 · 2012-03-24 06:11:01

i am unable to get my wireless to work
it works perfectly in windows
i am unable to see any wireless networks in either networkmanager or wicd
the drivers for my card are loaded
wireless worked before in arch
i am using the broadcom-wl drivers from aur
i have arch 64bit installed
i tried uninstalling and reinstalling drivers it did not work

output of lspci -v

04:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
	Subsystem: Broadcom Corporation Device 04b5
	Flags: bus master, fast devsel, latency 0, IRQ 18
	Memory at f5100000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [40] Power Management version 3
	Capabilities: [58] Vendor Specific Information: Len=78 <?>
	Capabilities: [e8] MSI: Enable- Count=1/1 Maskable- 64bit+
	Capabilities: [d0] Express Endpoint, MSI 00
	Capabilities: [100] Advanced Error Reporting
	Capabilities: [13c] Virtual Channel
	Capabilities: [160] Device Serial Number f8-66-82-ff-ff-39-00-26
	Capabilities: [16c] Power Budgeting <?>
	Kernel driver in use: wl

output iwlist wlan0 scan

wlan0     No scan results

ouput of iwconfig

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

output of lshw -C network

  *-network               
       description: Wireless interface
       product: BCM4312 802.11b/g LP-PHY
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlan0
       version: 01
       serial: 00:26:82:39:f8:66
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=wl0 driverversion=5.100.82.112 latency=0 multicast=yes wireless=IEEE 802.11abg
       resources: irq:18 memory:f5100000-f5103fff

output of ifconfig

wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500  metric 1
        inet6 fe80::226:82ff:fe39:f866  prefixlen 64  scopeid 0x20<link>
        ether 00:26:82:39:f8:66  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 18

output of 'rfkill list'

1: ideapad_wlan: Wireless LAN
	Soft blocked: no
	Hard blocked: no
2: ideapad_bluetooth: Bluetooth
	Soft blocked: no
	Hard blocked: no
3: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
4: phy1: Wireless LAN
	Soft blocked: no
	Hard blocked: no

Last edited by bharath1097 (2012-03-25 05:01:27)

hadrons123 · 2012-03-24 06:49:50

Is your system upto date?

bharath1097 · 2012-03-24 09:08:37

yes

magicalChicken · 2012-03-24 13:35:10

I think that in order for a scan to work right needs root priveledges because it needs access to the raw device, so try doing this as root, maybe that will help.

bharath1097 · 2012-03-24 14:45:46

i am doing it as root

bharath1097 · 2012-03-24 14:48:06

also wireless did work a few days back maybe its due to a kernel update i will try installing another kernel and try

bharath1097 · 2012-03-25 04:30:59

It just started working on its own
I did not update anything or change anything

Arch Linux

#1 2012-03-24 06:11:01

[Solved] wireless does not work: no scan results

#2 2012-03-24 06:49:50

Re: [Solved] wireless does not work: no scan results

#3 2012-03-24 09:08:37

Re: [Solved] wireless does not work: no scan results

#4 2012-03-24 13:35:10

Re: [Solved] wireless does not work: no scan results

#5 2012-03-24 14:45:46

Re: [Solved] wireless does not work: no scan results

#6 2012-03-24 14:48:06

Re: [Solved] wireless does not work: no scan results

#7 2012-03-25 04:30:59

Re: [Solved] wireless does not work: no scan results

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