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Thread: 10.04 LTS & TP-Link TL-WN751ND Crashes System

  1. #1
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    10.04 LTS & TP-Link TL-WN751ND Crashes System

    I got the wireless working only to have it crash my system every time I start using Firefox.

    Lspci brings back: Atheros 002D rev. 1

    I am using WPA/WPA2 personal and the system connects immediately after booting. After starting Firefox and bringing up a page, the system freezes with a screen full of diagonal lines of varying colors. The only way to get out of that is to hard reboot.

    My network connection has the following:

    1) SSID
    2) no MAC address
    3) no BSSID
    4) set for all users
    5) security: WPA/WPA2 personal
    6) network password
    7) iPv4 - Automatic (DHCP) - 192.168.0.1
    8) iPv6 - ignored

    I checked the package manager as to what's installed for wireless (I'm slowly learning Ubuntu) and there are a number of packages including: ndiswrapper, WPA/WPA2 support, utilities and others.

    I can't find much on 10.04 + the TL-WN751ND together, but it seems other people may have experienced crashes too. There isn't much on the TL-WN751ND in general.

    Any help greatly appreciated.

  2. #2
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    Re: 10.04 LTS & TP-Link TL-WN751ND Crashes System

    Do you use a (recommended!!!) proprietary VGA driver? The driver ath9k for this device works from Ubuntu 12.04 ootb. You know that 10.04 is outdated? I recommend an Upgrade or a mainline kernel from 3.2 and on

  3. #3
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    Re: 10.04 LTS & TP-Link TL-WN751ND Crashes System

    Quote Originally Posted by praseodym View Post
    Do you use a (recommended!!!) proprietary VGA driver? The driver ath9k for this device works from Ubuntu 12.04 ootb. You know that 10.04 is outdated? I recommend an Upgrade or a mainline kernel from 3.2 and on
    the video driver is an nvidia one.

    10.04 works for the people using it here. they like the interface style and are used to it. they just want the wireless to work.

    how can i install the ath9k driver without a direct internet connection? i have a basic windows pc available for downloads.

    thank you.

  4. #4
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    Re: 10.04 LTS & TP-Link TL-WN751ND Crashes System

    Install the mainline-kernel 3.9:

    http://kernel.ubuntu.com/~kernel-ppa...e/v3.9-raring/

    You need all possible packages for 32 or 64 bit, respectively (plus the "all.deb" files).

    Save them in "Downloads" and install via
    Code:
    sudo dpkg -i ~/Downloads/*.deb
    Reboot.

    I am using this kernel here with 12.04:

    Code:
    modinfo ath9k | grep 002D
    alias:          pci:v0000168Cd0000002Dsv*sd*bc*sc*i*

  5. #5
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    Re: 10.04 LTS & TP-Link TL-WN751ND Crashes System

    Quote Originally Posted by praseodym View Post
    Install the mainline-kernel 3.9:

    http://kernel.ubuntu.com/~kernel-ppa...e/v3.9-raring/

    You need all possible packages for 32 or 64 bit, respectively (plus the "all.deb" files).

    Save them in "Downloads" and install via
    Code:
    sudo dpkg -i ~/Downloads/*.deb
    Reboot.

    I am using this kernel here with 12.04:

    Code:
    modinfo ath9k | grep 002D
    alias:          pci:v0000168Cd0000002Dsv*sd*bc*sc*i*
    If I understand you correctly, you're saying that updating the kernel will allow the ath9k driver to work properly with 10.04.

    Is the ath9k driver included in the kernel files or will I have to install it the same way?

    Thank you.

  6. #6
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    Re: 10.04 LTS & TP-Link TL-WN751ND Crashes System

    Quote Originally Posted by skanger View Post
    If I understand you correctly, you're saying that updating the kernel will allow the ath9k driver to work properly with 10.04.
    Yes, your device is too new for kernel 2.6.32.
    Quote Originally Posted by skanger View Post
    Is the ath9k driver included in the kernel files or will I have to install it the same way?
    Let me clarify my (extended) terminal output:
    Code:
    modinfo ath9k | egrep 'filen|002D'
    filename:       /lib/modules/3.9.0-030900-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko
    alias:          pci:v0000168Cd0000002Dsv*sd*bc*sc*i*
    You can see that the driver ath9k in kernel 3.9 does contain your device's vendor and product ID. Therefore, it should work.
    Quote Originally Posted by skanger View Post
    Thank you.
    You're welcome.

  7. #7
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    Re: 10.04 LTS & TP-Link TL-WN751ND Crashes System

    Quote Originally Posted by praseodym View Post
    Yes, your device is too new for kernel 2.6.32.

    Let me clarify my (extended) terminal output:
    Code:
    modinfo ath9k | egrep 'filen|002D'
    filename:       /lib/modules/3.9.0-030900-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko
    alias:          pci:v0000168Cd0000002Dsv*sd*bc*sc*i*
    You can see that the driver ath9k in kernel 3.9 does contain your device's vendor and product ID. Therefore, it should work.

    You're welcome.
    so the driver is included in the newer kernel, if i understand you correctly.

    if so, that's great and i will follow your directions precisely. if not, what is the procedure for installing the ath9k driver?

    thank you again.

  8. #8
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    Re: 10.04 LTS & TP-Link TL-WN751ND Crashes System

    You can try to compile one of the newer "linux-wireless" packages. But I dont know if they can be compiled against the old kernel. Older packages do not contain the ID and, therefore, will not work.

  9. #9
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    Re: 10.04 LTS & TP-Link TL-WN751ND Crashes System

    Quote Originally Posted by praseodym View Post
    You can try to compile one of the newer "linux-wireless" packages. But I dont know if they can be compiled against the old kernel. Older packages do not contain the ID and, therefore, will not work.
    if the newer kernel files you linked to will work why would i want to compile one? i don't understand what the purpose of compiling is when one already exists.

    is it because the ath9k driver would be part of the compilation? does that mean that driver is not included in the kernel files you pointed me to?

  10. #10
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    Re: 10.04 LTS & TP-Link TL-WN751ND Crashes System

    It is included in 3.9. No need to compile.

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