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Thread: no wifi after kernel update

  1. #1
    Join Date
    Mar 2012

    no wifi after kernel update

    Here's my issue. in order to get sound from my headphone jack i need to update the kernel. wifi works fine out of the box with 12.04.1 but as soon as i update the kernel to anything newer than 3.2 my wifi flakes out. i can see the list of available networks but it wont connect. i am using a 27 inch imac 12,2

    oddly enough, i can use a usb dongle with no issues.

    any ideas???


  2. #2
    Join Date
    Mar 2012

    Re: no wifi after kernel update

    here's my connection info.


    description: Ethernet interface
    product: NetXtreme BCM57765 Gigabit Ethernet PCIe
    vendor: Broadcom Corporation
    physical id: 0
    bus info: pci@0000:02:00.0
    logical name: eth0
    version: 10
    serial: 3c:07:54:1d:b8:04
    capacity: 1Gbit/s
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi msix pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
    configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.121 firmware=57765-v1.37 latency=0 link=no multicast=yes port=twisted pair
    resources: irq:16 memory:a8400000-a840ffff memory:a8410000-a841ffff
    description: Wireless interface
    product: AR9300 Wireless LAN adaptor
    vendor: Atheros Communications Inc.
    physical id: 0
    bus info: pci@0000:03:00.0
    logical name: wlan0
    version: 01
    serial: 7c:c3:a1:ae:17:f2
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
    configuration: broadcast=yes driver=ath9k driverversion=3.2.0-29-generic firmware=N/A ip= latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
    resources: irq:17 memory:a8600000-a861ffff memory:8f900000-8f90ffff
    No LSB modules are available.
    Distributor ID: Ubuntu
    Description: Ubuntu 12.04.1 LTS
    Release: 12.04
    Codename: precise
    Linux glen-iMac 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
    [ 0.548758] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
    [ 8.299465] [Firmware Bug]: ACPI(GFX0) defines _DOD but not _DOS


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