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[SOLVED] wireless card not found
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lordalbert
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PostPosted: Mon Feb 16, 2015 12:59 pm    Post subject: [SOLVED] wireless card not found Reply with quote

Hi,
few month ago i used wireless on my notebook without problems. I have a BCM43225 card, and installed the relative firmware (sys-firmware/b43-firmware and net-wireless/b43-fwcutter ), also the kernel module build-in.
Few month ago worked perfectly, now i can't see the card, ifconfig and iwconfig don't see it.

Have you any idea how to solve?

Thank you


Last edited by lordalbert on Sat Feb 21, 2015 2:06 pm; edited 1 time in total
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charles17
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PostPosted: Mon Feb 16, 2015 1:08 pm    Post subject: Re: wireless card not found Reply with quote

A good start would be your output of lspci -k.
Also https://wiki.gentoo.org/wiki/Wifi might be of help for you.
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Naib
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PostPosted: Mon Feb 16, 2015 1:16 pm    Post subject: Reply with quote

what is the output of ifconfig -a
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SirRobin2318
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PostPosted: Mon Feb 16, 2015 3:11 pm    Post subject: Reply with quote

Something similar happened to me a month ago, after updating the kernel:
The kernel wasn't getting the firmware from userspace anymore. I ended up adding the firmware to the kernel build:
Code:
CONFIG_EXTRA_FIRMWARE="iwlwifi-6000g2a-6.ucode"
CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware"

(check the firmware name in /lib/firmware).

If your dmesg complains about not finding the firmware, this could be it.
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lordalbert
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PostPosted: Mon Feb 16, 2015 4:27 pm    Post subject: Reply with quote

SirRobin2318 wrote:
Something similar happened to me a month ago, after updating the kernel:
The kernel wasn't getting the firmware from userspace anymore. I ended up adding the firmware to the kernel build:
Code:
CONFIG_EXTRA_FIRMWARE="iwlwifi-6000g2a-6.ucode"
CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware"

(check the firmware name in /lib/firmware).

If your dmesg complains about not finding the firmware, this could be it.


ok, i think is a problem similar


Quote:

dmesg | grep firmware
b43 bcma0:0: Direct firmware load for b43/ucode16_mimo.fw failed with error -2
b43 bcma0:0: Direct firmware load for b43/ucode16_mimo.fw failed with error -2
b43 bcma0:0: Direct firmware load for b43-open/ucode16_mimo.fw failed with error -2
b43 bcma0:0: Direct firmware load for b43-open/ucode16_mimo.fw failed with error -2
b43-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/drivers/ [....]


Now i try with your configuration for loading extra firmware.
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lordalbert
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PostPosted: Tue Feb 17, 2015 4:45 pm    Post subject: Reply with quote

SirRobin2318 wrote:
Something similar happened to me a month ago, after updating the kernel:
The kernel wasn't getting the firmware from userspace anymore. I ended up adding the firmware to the kernel build:
Code:
CONFIG_EXTRA_FIRMWARE="iwlwifi-6000g2a-6.ucode"
CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware"

(check the firmware name in /lib/firmware).

If your dmesg complains about not finding the firmware, this could be it.


I have a subdir "b43" under /lib/firmware, which contains several file *.fw
What files i have to include in that kernel configuration?

And why it is needed? Bug in loading firmware?
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SirRobin2318
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PostPosted: Tue Feb 17, 2015 8:59 pm    Post subject: Reply with quote

I'm not sure, but loading firmware from userspace seems to have been deprecated:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=718975
http://wiki.gentoo.org/wiki/Udev#Software

In the meantime, you could boot your old kernel and check what firmware it loads in dmesg.
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lordalbert
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PostPosted: Sat Feb 21, 2015 12:12 am    Post subject: Reply with quote

ok, with kernel 3.14 it works...

Now, if i use networkmanager with nm-applet, wireless works perfectly, but iwconfig doesn't work..

Quote:

# iwlist wlp2s0 s
wlp2s0 Interface doesn't support scanning.


Have you any idea?
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charles17
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PostPosted: Sat Feb 21, 2015 7:01 am    Post subject: Reply with quote

WEXT enabled?
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lordalbert
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PostPosted: Sat Feb 21, 2015 2:06 pm    Post subject: Reply with quote

charles17 wrote:
WEXT enabled?


it was disabled.

I enable it, and now it works!
Thank you very much!
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