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Thread: Broadcom BCM4312

  1. #21
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    Re: Broadcom BCM4312

    It's alive! Thank you very much!

    I went for just these lines in interfaces:
    Code:
    # interfaces(5) file used by ifup(8) and ifdown(8)
    auto lo
    iface lo inet loopback
    It may be that I broke the file along the way while troubleshooting the driver problem. I recall I tried deleting it at some point to make sure it's clean and correct but it didn't work (system didn't boot).

  2. #22
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    Re: Broadcom BCM4312

    Awesome! Glad it's working. Please use thread tools at the top to mark Solved.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #23
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    Re: Broadcom BCM4312

    I didn't start the thread so I think the option is simply not available to me.

  4. #24
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    Re: Broadcom BCM4312

    Quote Originally Posted by Bucic View Post
    I didn't start the thread so I think the option is simply not available to me.
    Yep! Thanks for confirmation in any event.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  5. #25
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    Re: Broadcom BCM4312

    Please stop saying 'thank you'. I feel bad. You've helped me with a second computer already!

  6. #26
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    Re: Broadcom BCM4312

    It stopped working again for me. I haven't used the netbook for a while. Then:
    - took it to work : couldn't connect to any wifi
    - took it back home : couldn't connect to any wifi
    - acquired troubleshooting information (attached)
    - looked into interfaces ; its contents have changed from the contents as in post #21 to
    Code:
    # interfaces(5) file used by ifup(8) and ifdown(8)
    auto lo
    #iface lo inet loopback
    - tried restoring the interfaces contents per post #21 as well as per your post #20 with SSID and password specified - to no avail
    Attached Files Attached Files
    Last edited by Bucic; May 6th, 2014 at 07:54 PM.

  7. #27
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    Re: Broadcom BCM4312

    - tried restoring the interfaces contents per post #21 as well as per your post #20 with SSID and password specified - to no avail
    Please remove those settings. Please restore /etc/network/interfaces to:
    Code:
    # interfaces(5) file used by ifup(8) and ifdown(8)
    auto lo
    iface lo inet loopback
    Then reboot and tell me if you connected. If not, pease let me see a new report as above.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  8. #28
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    Re: Broadcom BCM4312

    It has gotten worse. It doesn't even scan now.

    One dmesg is attached. Here's another one after removing all remembered wifis (via applet > Modify networks...) and a second reboot
    Code:
    ~$ dmesg | grep -e wl -e b43
    [   11.429062] b43-phy0: Broadcom 4312 WLAN found (core revision 15)
    [   11.508808] b43-phy0: Found PHY: Analog 6, Type 5 (LP), Revision 1
    [   19.268150] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
    [   24.885441] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
    [   24.889090] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
    uz1@aspireone:~$ dmesg | grep -e wl -e b43
    [   11.429062] b43-phy0: Broadcom 4312 WLAN found (core revision 15)
    [   11.508808] b43-phy0: Found PHY: Analog 6, Type 5 (LP), Revision 1
    [   19.268150] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
    [   24.885441] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
    [   24.889090] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
    [  625.241937] wlan0: authenticate with 00:24:d1:7a:23:d9
    [  625.253077] wlan0: direct probe to 00:24:d1:7a:23:d9 (try 1/3)
    [  625.456173] wlan0: direct probe to 00:24:d1:7a:23:d9 (try 2/3)
    [  625.660171] wlan0: direct probe to 00:24:d1:7a:23:d9 (try 3/3)
    [  625.864170] wlan0: authentication with 00:24:d1:7a:23:d9 timed out
    [  633.198417] wlan0: authenticate with 00:24:d1:7a:23:d9
    [  633.209033] wlan0: direct probe to 00:24:d1:7a:23:d9 (try 1/3)
    [  633.412170] wlan0: send auth to 00:24:d1:7a:23:d9 (try 2/3)
    [  633.616173] wlan0: send auth to 00:24:d1:7a:23:d9 (try 3/3)
    [  633.820165] wlan0: authentication with 00:24:d1:7a:23:d9 timed out
    Attached Files Attached Files
    Last edited by Bucic; May 7th, 2014 at 07:51 AM.

  9. #29
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    Re: Broadcom BCM4312

    b43-phy0 warning: Forced PIO by use_pio module parameter. This should not be needed and will result in lower performance.
    This is pretty unusual; I think I'd look around in the BIOS to see if there is any unusual setting. Typically, the BIOS can be set to defaults and work correctly in Linux. If you dual-boot with Windows and are using UEFI, Please proceed with caution. https://help.ubuntu.com/community/UEFI

    Do you have a conf file that forces the parameter?
    Code:
    ls /etc/modprobe.d
    If you find something, we need to have a look at it and probably remove it.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  10. #30
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    Re: Broadcom BCM4312

    BIOS is updated, at defaults and in the same state as before when wifi started working.
    I don't recall fiddling with modules.

    Code:
    ~$ ls /etc/modprobe.d
    alsa-base.conf              blacklist-modem.conf         fbdev-blacklist.conf
    blacklist-ath_pci.conf      blacklist-oss.conf           iwlwifi.conf
    blacklist.conf              blacklist-rare-network.conf  libpisock9.conf
    blacklist-firewire.conf     blacklist-watchdog.conf      mlx4.conf
    blacklist-framebuffer.conf  dkms.conf    
    
    NOTE:
    blacklist-oss.conf highlighted, cyan
    
    
    /etc/modprobe.d/blacklist-oss.conf
    blacklist ac97
    blacklist ac97_codec
    blacklist ac97_plugin_ad1980
    blacklist ad1848
    blacklist ad1889
    blacklist adlib_card
    blacklist aedsp16
    blacklist ali5455
    blacklist btaudio
    blacklist cmpci
    blacklist cs4232
    blacklist cs4281
    blacklist cs461x
    blacklist cs46xx
    blacklist emu10k1
    blacklist es1370
    blacklist es1371
    blacklist esssolo1
    blacklist forte
    blacklist gus
    blacklist i810_audio
    blacklist kahlua
    blacklist mad16
    blacklist maestro
    blacklist maestro3
    blacklist maui
    blacklist mpu401
    blacklist nm256_audio
    blacklist opl3
    blacklist opl3sa
    blacklist opl3sa2
    blacklist pas2
    blacklist pss
    blacklist rme96xx
    blacklist sb
    blacklist sb_lib
    blacklist sgalaxy
    blacklist sonicvibes
    blacklist sound
    blacklist sscape
    blacklist trident
    blacklist trix
    blacklist uart401
    blacklist uart6850
    blacklist via82cxxx_audio
    blacklist v_midi
    blacklist wavefront
    blacklist ymfpci
    blacklist ac97_plugin_wm97xx
    blacklist ad1816
    blacklist audio
    blacklist awe_wave
    blacklist dmasound_core
    blacklist dmasound_pmac
    blacklist harmony
    blacklist sequencer
    blacklist soundcard
    blacklist usb-midi
    
    
    
    # /etc/modprobe.d/iwlwifi.conf
    # iwlwifi will dyamically load either iwldvm or iwlmvm depending on the
    # microcode file installed on the system.  When removing iwlwifi, first
    # remove the iwl?vm module and then iwlwifi.
    remove iwlwifi \
    (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
    && /sbin/modprobe -r mac80211

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