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Re: Centrino Ultimate-N 6300 AGN rfkill always Soft blocked

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On Thu, 2013-04-11 at 20:03 -0400, schwaahed wrote:
> Hello,
> 
> I have an HP Elitebook 8460w laptop containing a Centrino Ultimate-N
> 6300 AGN (linux-3.8.6 iwlwifi module -  firmware version 9.221.4.1
> build 25532)

I notice that your 'rfkill list all' dumps below don't contain an entry
for hp-wmi.  Is that module loaded on your machine?  It's needed at
least for earlier models of the Elitebook, up at least until the xx40
series.  Perhaps it needs to be updated for your laptop?  You might ask
on the general kernel lists if anyone knows how rfkill is supposed to
work for the 8460 and if hp-wmi supports it, or if some other mechanism
is used.

Dan

> I am unable to remove the softblock on the chip with rfkill. For the
> most part my wifi chip stays soft blocked. The only time I can manage
> to get it unblocked is when the wlan0 interface is hard blocked.
> 
> I am able to:
> - soft block the interface
> - hard block the interface
> - hard block and softblock the interface
> 
> I am not able to:
> - soft unblock and hard unblock simultaneously.
> 
> I needed to do a fresh install of Gentoo Linux on a new hard drive. I
> don't have access to the old hard drive at the moment, but wifi did
> work on this older install of gentoo linux.. I am using the iwlwifi
> driver and firmware that are part of Gentoo.
> 
> After I couldn't get wifi working I installed Windows 7 and the wifi
> works fine when I boot into Windows 7.
> 
> I have looked many places for a solution and other people have run
> accross this problem but none of their solutions work for me.
> 
> Here are some of the things that I have tried that have resolved this
> problem for others, but not for me:
> 
> - unload and reload the iwlwifi module
> - disable rfkill and bluetooth in the kernel
> - boot with the hardware wifi switch off
> - boot with the hardware wifi switch on
> 
> I have these kernels installed and ready to run on the new harddrive
> they all exhibit this same behavior:
> 
> linux-3.6.11-r2
> linux-3.7.10
> linux-3.7.10-r1
> linux-3.8.5
> linux-3.8.6
> 
> I started out with linux-3.8.5 on this new harddrive. Wifi was working
> fine with linux-3.7.10-r1 on the old harddrive (same machine). If
> anyone has any insight into how I might solve this problem I would
> really appreciate a push in the right direction.
> 
> Thanks
> - Darwin
> 
> 
> Below I've given a record of some of the commands I've tried to use to
> unblock rfkill and some info about my system:
> 
> 
> # iwconfig
> 
> wlan0     IEEE 802.11abgn  ESSID:off/any
>           Mode:Managed  Access Point: Not-Associated   Tx-Power=off
>           Retry  long limit:7   RTS thr:off   Fragment thr:off
>           Encryption key:off
>           Power Management:off
> 
> # ifconfig wlan0 up
> 
> SIOCSIFFLAGS: Operation not possible due to RF-kill
> 
> # rfkill list all
> 
> 0: phy0: Wireless LAN
> Soft blocked: yes
> Hard blocked: no
> 
> # rfkill unblock all
> # rfkill list all
> 
> 0: phy0: Wireless LAN
> Soft blocked: yes
> Hard blocked: no
> 
> PRESS HARDWARE WIFI BUTTON, LED CHANGES TO ORANGE-OFF
> 
> # rfkill list all
> 
> 0: phy0: Wireless LAN
> Soft blocked: yes
> Hard blocked: yes
> 
> # rfkill unblock 0
> # rfkill list all
> 
> 0: phy0: Wireless LAN
> Soft blocked: no
> Hard blocked: yes
> 
> PRESS HARDWARE WIFI BUTTON, LED CHANGES TO WHITE-ON
> 
> # rfkill list all
> 
> 0: phy0: Wireless LAN
> Soft blocked: yes
> Hard blocked: no
> 
> 
> PRESS HARDWARE WIFI BUTTON, LED CHANGES TO ORANGE-OFF
> 
> # rfkill list all
> 
> 0: phy0: Wireless LAN
> Soft blocked: yes
> Hard blocked: yes
> 
> PRESS HARDWARE WIFI BUTTON, LED CHANGES TO WHITE-ON
> 
> # rfkill list all
> 
> 0: phy0: Wireless LAN
> Soft blocked: yes
> Hard blocked: no
> 
> 
> portion of dmesg output
> 
> [    3.636945] iwlwifi 0000:25:00.0: loaded firmware version 9.221.4.1
> build 25532
> [    3.666672] cfg80211: World regulatory domain updated:
> [    3.666676] cfg80211:   (start_freq - end_freq @ bandwidth),
> (max_antenna_gain, max_eirp)
> [    3.666680] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz),
> (300 mBi, 2000 mBm)
> [    3.666735] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz),
> (300 mBi, 2000 mBm)
> [    3.666738] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz),
> (300 mBi, 2000 mBm)
> [    3.666780] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz),
> (300 mBi, 2000 mBm)
> [    3.666784] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz),
> (300 mBi, 2000 mBm)
> ...
> [    3.671565] iwlwifi 0000:25:00.0: CONFIG_IWLWIFI_DEBUG enabled
> [    3.671569] iwlwifi 0000:25:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
> [    3.671571] iwlwifi 0000:25:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
> [    3.671574] iwlwifi 0000:25:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE disabled
> [    3.671576] iwlwifi 0000:25:00.0: CONFIG_IWLWIFI_P2P enabled
> [    3.671579] iwlwifi 0000:25:00.0: Detected Intel(R) Centrino(R)
> Ultimate-N 6300 AGN, REV=0x74
> [    3.671651] iwlwifi 0000:25:00.0: L1 Disabled; Enabling L0S
> [    3.671787] iwlwifi 0000:25:00.0: RF_KILL bit toggled to enable radio.
> [    3.693396] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
> 
> 
> # lsmod
> 
> Module                  Size  Used by
> iptable_nat             2858  0
> nf_nat_ipv4             3703  1 iptable_nat
> nf_nat                 15405  2 nf_nat_ipv4,iptable_nat
> snd_hda_codec_hdmi     28108  1
> iwldvm                233069  0
> mac80211              524815  1 iwldvm
> snd_hda_codec_idt      60778  1
> radeon                912449  1
> iwlwifi               161962  1 iwldvm
> i2c_algo_bit            5681  1 radeon
> snd_hda_intel          34488  0
> drm_kms_helper         33940  1 radeon
> snd_hda_codec         106132  3
> snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel
> ttm                    70693  1 radeon
> snd_hwdep               6010  1 snd_hda_codec
> snd_pcm                81985  3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
> kvm                   422194  0
> snd_page_alloc          8204  2 snd_pcm,snd_hda_intel
> cfg80211              493526  3 iwlwifi,mac80211,iwldvm
> snd_timer              19874  1 snd_pcm
> drm                   252792  3 ttm,drm_kms_helper,radeon
> agpgart                31743  2 drm,ttm
> snd                    58279  7
> snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_idt,snd_pcm,snd_hda_codec,snd_hda_intel
> xhci_hcd               87398  0
> firewire_ohci          32771  0
> soundcore               1090  1 snd
> rfkill                 17656  3 cfg80211
> firewire_core          56164  1 firewire_ohci
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