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Thread: Ubuntu and the asus zenbook (UX31)

  1. #1901
    Join Date
    Oct 2005
    Location
    Finland
    Beans
    86

    Re: Ubuntu and the asus zenbook (UX31)

    Quote Originally Posted by Jaseemxx91 View Post
    3) My Wifi Signal is pathetic. All my friends are able to use our college Wifi but not me. Even my good old Nokia N82 shows full signal where as my Ux31e SUCKS!!!
    same here I have Netgear WNDR3300 and I use it only at 54mb/s, router is about 3 meter (10feet) away from my laptop one chipboard wall between router and laptop, signal quality is poor.
    Code:
    wlan0     IEEE 802.11bgn  ESSID:"XXXXXXX"  
              Mode:Managed  Frequency:2.462 GHz  Access Point: XX:XX:XX:XX:XX:XX   
              Bit Rate=54 Mb/s   Tx-Power=15 dBm   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Power Management:on
              Link Quality=32/70  Signal level=-78 dBm  
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:61   Missed beacon:0

  2. #1902
    Join Date
    Sep 2012
    Beans
    16

    Re: Ubuntu and the asus zenbook (UX31)

    Indeed, Wifi quality on Zenbook with Linux is poor. Atheros isn't working (as i know) on Linux drivers...so someone has to find out how this chip works. Apparently this isn't easy!
    The only tips i know:
    * don't place your AP behind the screen. Apparently the aluminium shields the Wifi signal...you can test this with your Smartphone (and AP mode).
    * deactivate hardware encryption for ath9k (driver module) (was postet some pages before)
    * use Windows XP driver with ndiswrapper --> wasn't helpfull for me

  3. #1903
    Join Date
    Feb 2012
    Beans
    5

    Re: Ubuntu and the asus zenbook (UX31)

    While not being great, my wifi is all right and actually never disconnects while not moving with:
    - 3.6.11 Kernel (From mainline: http://kernel.ubuntu.com/~kernel-ppa/mainline/)
    - Powermanagement off (In shell: "sudo iwconfig wlan0 power off")

    This worked for me on 12.10 and 13.04. Any kernel newer than the above which I tried was really bad. Not only was the signal poor but it disconnected frequently.
    Btw. my router is behind a thick concrete wall.

  4. #1904
    Join Date
    May 2006
    Location
    Vienna/Austria
    Beans
    Hidden!
    Distro
    Kubuntu 10.10 Maverick Meerkat

    Re: Ubuntu and the asus zenbook (UX31)

    thanks chrisboo for the tip with kernel 3.6.11!

    i was almost giving up.
    either i had a stable wifi with stock ubuntu 12.04 kernel (3.2.x) BUT experienced sudden shuttdowns whenever i touched the power plug.

    or i had no shutdowns with different kernels from the 3.8 series, but the WIFI was not usable at all.

    disabling VT was no option for me as i need KVM for my daily living...

    with kernel 3.6.11 everything seems to be fine now ( although the sudden shutdown thing might occure at some later point // fingers crossed )

    Edit: i've posted this information on the according launchpad bug
    Last edited by hatsch; June 3rd, 2013 at 10:29 AM.

  5. #1905
    Join Date
    Apr 2012
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    15

    Re: Ubuntu and the asus zenbook (UX31)

    Quote Originally Posted by hatsch View Post
    thanks chrisboo for the tip with kernel 3.6.11!

    i was almost giving up.
    either i had a stable wifi with stock ubuntu 12.04 kernel (3.2.x) BUT experienced sudden shuttdowns whenever i touched the power plug.

    or i had no shutdowns with different kernels from the 3.8 series, but the WIFI was not usable at all.

    disabling VT was no option for me as i need KVM for my daily living...

    with kernel 3.6.11 everything seems to be fine now ( although the sudden shutdown thing might occure at some later point // fingers crossed )

    Edit: i've posted this information on the according launchpad bug
    I have not tested the 3.6.11 kernel but I've done a few things that helped with my connection (UX31E) :
    - switching to WPA2 (TKIP) instead of WPA
    - switching to a channel with a greater number (from 4 to 11)
    - disabling ANI
    - disabling power management

    Feel free to provide additional information to the Linux Kernel bug as well as the Launchpad bug :
    https://bugzilla.kernel.org/show_bug.cgi?id=49201

  6. #1906
    Join Date
    Apr 2005
    Beans
    1,343

    Re: Ubuntu and the asus zenbook (UX31)

    I was thinking about buying a UX31E with 128GB SSD but now after reading about troubles with wifi I am not sure as I use only wifi connections. Is the issue that bad?
    ASUS K53S Ubuntu 14.04 64-bit
    ASUS U36jc, i5-480M, 2.66GHz, 4Gb, nVidia Optimus Ubuntu 14.04 64-bit
    HP DV6-2113sa, AMD Turion™ II M620, 4Gb, ATI Radeon™ HD 4530 Ubuntu 14.04 64-bit
    ASUS 1015PX Netbook Lubuntu 14.04

  7. #1907
    Join Date
    Apr 2012
    Beans
    15

    Re: Ubuntu and the asus zenbook (UX31)

    It's been quite a burden for me, but not for everybody. It depends on when you use it, how is your house built...
    However someone at Qualcomm Atheros is working on it right now : https://bugzilla.kernel.org/show_bug.cgi?id=49201

  8. #1908
    Join Date
    Apr 2012
    Beans
    15

    Red face Re: Ubuntu and the asus zenbook (UX31)

    Ladies and gentlemen... The wifi bug has now been fixed !
    https://bugzilla.kernel.org/show_bug.cgi?id=49201
    (At least for UX31E ; I don't know for other Zenbooks)
    I don't know if the patches will ship with kernel 3.10 or later.
    https://patchwork.kernel.org/patch/2696121/
    https://patchwork.kernel.org/patch/2718041/

    If need be I can give instructions to compile the custom kernel yourself.

  9. #1909
    Join Date
    Feb 2013
    Beans
    6

    Re: Ubuntu and the asus zenbook (UX31)

    Quote Originally Posted by gfmichaud View Post
    Ladies and gentlemen... The wifi bug has now been fixed !
    https://bugzilla.kernel.org/show_bug.cgi?id=49201
    (At least for UX31E ; I don't know for other Zenbooks)
    I don't know if the patches will ship with kernel 3.10 or later.
    https://patchwork.kernel.org/patch/2696121/
    https://patchwork.kernel.org/patch/2718041/

    If need be I can give instructions to compile the custom kernel yourself.
    Can you post instructions please?

  10. #1910
    Join Date
    Apr 2012
    Beans
    15

    Re: Ubuntu and the asus zenbook (UX31)

    1) Install all the packages necessary to build the kernel
    sudo apt-get install git-core libncurses5 libncurses5-dev libelf-dev asciidoc binutils-dev linux-source qt3-dev-tools libqt3-mt-dev libncurses5 libncurses5-dev fakeroot build-essential crash kexec-tools makedumpfile kernel-wedge kernel-package


    2) Download the kernel sources from kernel.org and unzip them ; then go in the kernel sources folder


    3) Download the patches and apply them (https://patchwork.kernel.org/patch/2696121/raw/ and https://patchwork.kernel.org/patch/2718041/raw/)
    patch -p1 < PATCH_TO_APPLY


    4) Configure the kernel (be sure everything you use is plugged or some modules may be missing - in my case, I didn't plug my USB key and now it doesn't work) ; if asked anything you don't understand, press "enter" to keep the default value
    cp -vi /boot/config-`uname -r` .config
    yes "" | make oldconfig
    yes "" | make localmodconfig
    ./scripts/config --file .config -d ATH9K_RATE_CONTROL


    5) Compile
    make -j5


    6) Install
    sudo make modules_install
    sudo make install


    7) If you want to remove the kernel later on you have to remove :
    /boot/vmlinuz*KERNEL-VERSION*
    /boot/initrd*KERNEL-VERSION*
    /boot/System-map*KERNEL-VERSION*
    /boot/config-*KERNEL-VERSION*
    /lib/modules/*KERNEL-VERSION*/
    then do :
    sudo update-grub

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