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Thread: Acer Aspire 7250 freezes when Enabling Wireless with Atheros AR9485

  1. #1
    Join Date
    Feb 2006
    Location
    Germany
    Beans
    72

    Acer Aspire 7250 freezes when Enabling Wireless with Atheros AR9485

    Hi all,

    I have this new Laptop:

    Acer Aspire 7250
    AMD Dual-Core-Processor E300
    17.3 " HD + LED LCD
    AMD Radeon HD 6310
    8 GB DDR3 Memory
    500 GB HDD
    DVD-Super Multi DL drive
    Acer Nplify 802.11 b/g/n
    6-cell Li-ion battery

    Running 64bit Ubuntu 12.04:
    kernel: 3.2.0-24-generic

    When ever I am clicking "Enable Wireless" the laptop freezes immediately.
    I then need to press the ON/OFF button to restart.

    Someone please help.
    In older threads it is suggested that "Turn on Network boot in BIOS" might help, but it does not change anything.

    lspci -k:

    06:00.0 Network controller: Atheros Communications Inc. AR9485 Wireless Network Adapter (rev 01)
    Subsystem: Lite-On Communications Inc Device 6617
    Kernel driver in use: ath9k
    Kernel modules: ath9k

    dmesg:

    [ 12.279014] ath9k 0000:06:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
    [ 12.279072] ath9k 0000:06:00.0: setting latency timer to 64
    [ 12.290070] ath: EEPROM regdomain: 0x65
    [ 12.290078] ath: EEPROM indicates we should expect a direct regpair map
    [ 12.290087] ath: Country alpha2 being used: 00
    [ 12.290091] ath: Regpair used: 0x65
    [ 12.290731] cfg80211: Updating information on frequency 2412 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290742] cfg80211: 2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290747] cfg80211: Updating information on frequency 2417 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290753] cfg80211: 2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290758] cfg80211: Updating information on frequency 2422 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290764] cfg80211: 2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290769] cfg80211: Updating information on frequency 2427 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290775] cfg80211: 2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290780] cfg80211: Updating information on frequency 2432 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290786] cfg80211: 2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290790] cfg80211: Updating information on frequency 2437 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290796] cfg80211: 2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290801] cfg80211: Updating information on frequency 2442 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290806] cfg80211: 2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290811] cfg80211: Updating information on frequency 2447 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290817] cfg80211: 2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290821] cfg80211: Updating information on frequency 2452 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290827] cfg80211: 2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290832] cfg80211: Updating information on frequency 2457 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290838] cfg80211: 2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290842] cfg80211: Updating information on frequency 2462 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290848] cfg80211: 2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290853] cfg80211: Updating information on frequency 2467 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290858] cfg80211: 2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290863] cfg80211: Updating information on frequency 2472 MHz for a 20 MHz width channel with regulatory rule:
    [ 12.290869] cfg80211: 2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A mBi, 2000 mBm)
    [ 12.290874] cfg80211: Disabling freq 2484 MHz as custom regd has no rule that fits a 20 MHz wide channel
    [ 12.295031] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain
    [ 12.314656] ieee80211 phy0: Selected rate control algorithm 'ath9k_rate_control'
    [ 12.316637] Registered led device: ath9k-phy0
    [ 12.316669] ieee80211 phy0: Atheros AR9485 Rev:1 mem=0xffffc90005a80000, irq=17
    [ 12.612571] init: failsafe main process (779) killed by TERM signal
    [ 12.747420] type=1400 audit(1335515214.867:7): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=868 comm="apparmor_parser"
    [ 12.755276] type=1400 audit(1335515214.875:8): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=868 comm="apparmor_parser"
    [ 12.755772] type=1400 audit(1335515214.875:9): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=868 comm="apparmor_parser"
    [ 12.757052] type=1400 audit(1335515214.879:10): apparmor="STATUS" operation="profile_load" name="/usr/lib/lightdm/lightdm/lightdm-guest-session-wrapper" pid=867 comm="apparmor_parser"
    [ 12.777234] type=1400 audit(1335515214.899:11): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/mission-control-5" pid=871 comm="apparmor_parser"

  2. #2

    Re: Acer Aspire 7250 freezes when Enabling Wireless with Atheros AR9485

    I have the same problem... help please

  3. #3
    Join Date
    Feb 2006
    Location
    Germany
    Beans
    72

    Re: Acer Aspire 7250 freezes when Enabling Wireless with Atheros AR9485

    Workaround by disabling the Ethernet controller for wired connection:

    http://ubuntuforums.org/showpost.php...78&postcount=7

  4. #4
    Join Date
    Jul 2012
    Beans
    2

    Re: Acer Aspire 7250 freezes when Enabling Wireless with Atheros AR9485

    Thank you, solved issue.

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