Results 1 to 7 of 7

Thread: Acer C7 Chromebook, 13.04, ath9k AR9462 Wireless Issues

  1. #1
    Join Date
    Sep 2013
    Beans
    3

    Acer C7 Chromebook, 13.04, ath9k AR9462 Wireless Issues

    My Acer came with the Atheros AR9462 and it's giving me problems. The ath9k nohwcrypt solution seems like it helped a little bit--but only delayed the inevitable dropping networks every few minutes, unable to connect, etc.
    I've looked into compat-wireless but can't figure out how to get it installed and set up.
    $ uname -r
    3.4.0

    $ sudo apt-get install linux-headers-generic
    ...
    The following extra packages will be installed:
    linux-headers-3.8.0-30 linux-headers-3.8.0-30-generic
    Is there something weird going on with my Chrubuntu install (Ubuntu on Chromebook) that's making my kernel weird? Any other suggestions?

  2. #2
    Join Date
    Apr 2012
    Beans
    Hidden!

    Re: Acer C7 Chromebook, 13.04, ath9k AR9462 Wireless Issues

    Hi , did you build this file to make the nohwcrypt permanent?
    Code:
    sudo gedit /etc/modprobe.d/ath9k.conf
    enter this one line of code..
    Code:
    options ath9k nohwcrypt=1
    save and close gedit.
    boot
    Craving anchovy, herring and squid pizza.....with clam sauce

  3. #3
    Join Date
    Sep 2013
    Beans
    3

    Re: Acer C7 Chromebook, 13.04, ath9k AR9462 Wireless Issues

    Yep that was the first thing I tried. I just checked to make sure and the full contents of my ath9k.conf file are exactly as you suggested.


    It definitely seems to have helped and made a stable wifi connection last longer, but it still ultimately runs into connection problems that can sometimes be solved by switching off and on the network adapter and then it eventually requires a reboot (and sometimes even the reboot doesn't help and I'm just stuck waiting it out).

    I've done some research and I'd like to try updating the wireless drivers but am getting stuck. Would you like me to run anything that would give more information?

  4. #4
    Join Date
    Apr 2012
    Beans
    Hidden!

    Re: Acer C7 Chromebook, 13.04, ath9k AR9462 Wireless Issues

    Hi, this "may" help some.
    Code:
    sudo su
    echo "blacklist acer_wmi" | sudo tee -a /etc/modprobe.d/blacklist.conf
    exit 0
    and please post..
    Code:
    lsmod
    uname -a
    also..check your channel...set to 1 or 11
    thanks.
    Craving anchovy, herring and squid pizza.....with clam sauce

  5. #5
    Join Date
    Sep 2013
    Beans
    3

    Re: Acer C7 Chromebook, 13.04, ath9k AR9462 Wireless Issues

    Channel is 1. But the most problematic connection is a school one that I have no control over.

    Code:
    $ lsmodModule                  Size  Used by
    fuse                   59374  2 
    rfcomm                 25131  12 
    snd_hda_codec_hdmi     28957  1 
    snd_hda_codec_realtek    45104  1 
    snd_hda_intel          20528  5 
    snd_hda_codec          58216  3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
    snd_hwdep              12366  1 snd_hda_codec
    snd_pcm                52490  4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
    ath9k_btcoex          105354  0 
    mac80211              262422  1 ath9k_btcoex
    ath9k_common_btcoex    12657  1 ath9k_btcoex
    ath9k_hw_btcoex       319142  2 ath9k_btcoex,ath9k_common_btcoex
    ath                    16858  3 ath9k_btcoex,ath9k_hw_btcoex,ath9k_common_btcoex
    uvcvideo               54888  0 
    videobuf2_core         25155  1 uvcvideo
    videodev               64328  1 uvcvideo
    videobuf2_vmalloc      12305  1 uvcvideo
    videobuf2_memops       12372  1 videobuf2_vmalloc
    memconsole             12336  0 
    ath3k                  12336  0 
    btusb                  16432  0 
    bluetooth             142917  20 ath3k,btusb,rfcomm
    sdhci_pci              16432  0 
    sdhci                  24949  1 sdhci_pci
    mmc_core               66279  2 sdhci,sdhci_pci
    nm10_gpio              12336  0 
    cfg80211              123127  3 ath,ath9k_btcoex,mac80211
    tg3                   106544  0 
    joydev                 16432  0 
    snd_timer              20974  1 snd_pcm
    snd_page_alloc         12710  2 snd_pcm,snd_hda_intel
    $
    Code:
    $ uname -aLinux chrubuntu 3.4.0 #1 SMP Thu Sep 12 16:21:05 PDT 2013 i686 i686 i686 GNU/Linux
    $

  6. #6
    Join Date
    Apr 2012
    Beans
    Hidden!

    Re: Acer C7 Chromebook, 13.04, ath9k AR9462 Wireless Issues

    Hi, it looks like from your lsmod dump
    you use the ath9k_btcoex module not the regular ath9k.
    I'm not finding any fixes doing research on it....a few bugs
    and it seems to be confined to the chrombook. You may find
    a patch somewhere by searching or perhapes someone with
    abilities i dont have can guide you to patch it. sorry I was not
    able to find a fix for you.
    Craving anchovy, herring and squid pizza.....with clam sauce

  7. #7
    Join Date
    Mar 2010
    Location
    India
    Beans
    6,573
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Acer C7 Chromebook, 13.04, ath9k AR9462 Wireless Issues

    Quote Originally Posted by BHzCnPm View Post
    Code:
    ath9k_btcoex          105354  0 
    mac80211              262422  1 ath9k_btcoex
    ath9k_common_btcoex    12657  1 ath9k_btcoex
    ath9k_hw_btcoex       319142  2 ath9k_btcoex,ath9k_common_btcoex
    ath                    16858  3 ath9k_btcoex,ath9k_hw_btcoex,ath9k_common_btcoex
    Never seen or heard of that module before, but it looks like just a slightly modified version of standard ath9k with "btcoex" enabled by default (which is optional in ath9k) : https://groups.google.com/a/chromium...ws/PqwwA5CikYw

    Please follow the "Wireless Script" link in my signature, download and run the script as per instructions there, and post back the report it generates. Maybe we can try something if all else looks familiar.
    Varun
    Help others by marking threads as [SOLVED], if they are. (See how)
    Wireless Script | Use Code Tags

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •