Re: networkmanager can not enable wireless scanning

[Dan Williams <dcbw redhat com>]

On Thu, 2013-09-26 at 15:09 +0800, LovelyLich wrote:
> Thanks Larry for your help.
> iwconfig shows a wireless device.
> here is my output :

What is the "rfkill list" output if, as root, you run "rfkill unblock
wifi"?

Dan

> this dmesg -c output is the only output when i click the 'enable
> wireless' button(of course, it automaticly unchecked again. :( )
> [root localhost]/home/codedancer# dmesg -c
> [  434.786071] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
>
> And other command output is below, thanks .
>
> [root localhost]/home/codedancer# rfkill list
> 0: acer-wireless: Wireless LAN
>         Soft blocked: yes
>         Hard blocked: no
> 1: phy0: Wireless LAN
>         Soft blocked: no
>         Hard blocked: no
> [root localhost]/home/codedancer# iwconfig
> wlp3s0    IEEE 802.11bgn  ESSID:off/any
>           Mode:Managed  Access Point: Not-Associated   Tx-Power=16 dBm
>           Retry  long limit:7   RTS thr:off   Fragment thr:off
>           Encryption key:off
>           Power Management:on
>
> vmnet8    no wireless extensions.
>
> p4p2      no wireless extensions.
>
> lo        no wireless extensions.
>
> vmnet1    no wireless extensions.
>
> [root localhost]/home/codedancer#
>
> 2013/9/26 Larry Finger <Larry Finger lwfinger net>:
> > On 09/25/2013 09:28 PM, LovelyLich wrote:
> > > Hi list,
> > > When I click 'enable wireless', nm will automaticly uncheck the button
> > > before 'enable wireless'.
> > > Even if I try to boot with  ubuntu 13.04 livecd , it still cannot
> > > enable wireless.
> > > here is my laptop info from fedora:
> > > lspci -v
> > > 03:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network
> > > Adapter (rev 01)
> > >          Subsystem: Lite-On Communications Inc Device 6627
> > >          Flags: bus master, fast devsel, latency 0, IRQ 18
> > >          Memory at f7900000 (64-bit, non-prefetchable) [size=512K]
> > >          Expansion ROM at f7980000 [disabled] [size=64K]
> > >          Capabilities: [40] Power Management version 2
> > >          Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
> > >          Capabilities: [70] Express Endpoint, MSI 00
> > >          Capabilities: [100] Advanced Error Reporting
> > >          Capabilities: [140] Virtual Channel
> > >          Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00
> > >          Kernel driver in use: ath9k
> > >
> > > ethtool -i :
> > > [root localhost]/home/codedancer# ethtool -i wlp3s0
> > > driver: ath9k
> > > version: 3.9.5-301.fc19.x86_64
> > > firmware-version: N/A
> > > bus-info: 0000:03:00.0
> > > supports-statistics: yes
> > > supports-test: no
> > > supports-eeprom-access: no
> > > supports-register-dump: no
> > > supports-priv-flags: no
> > > [root localhost]/home/codedancer#
> > >
> > > Please help me , thanks .
> > > if you need more info, just let me know.
> >
> >
> > Two things that suppress wireless come to mind.
> >
> > Does iwconfig show a wireless device? If not, you may be missing the
> > necessary firmware. Check the output of dmesg to see if there are any
> > messages regarding missing firmware.
> >
> > Does "rfkill list" show anything blocked?
> >
> > Larry
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