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  1. #1

    Question Atheros AR5B91 driver issues.

    I use an acer aspire 5810t laptop and run ubuntu. My wireless has worked for me in the past but now my laptop won't recognise my card. It does when it first boots but once ubuntu begins to load it no longer does. Any thoughts?

  2. #2
    Administrator jayd512's Avatar
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    Feb 2008
    Hello and Welcome!

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  3. #3
    Linux Guru Rubberman's Avatar
    Join Date
    Apr 2009
    I can be found either 40 miles west of Chicago, in Chicago, or in a galaxy far, far away.
    Have you looked at the Welcome - Linux Wireless web site? They have a LOT of information on how to deal with these problems, not to mention drivers/links/help.
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

  4. $spacer_open
  5. #4
    I had the exact same problem with an Atheros 5001 card about 4 years ago. It worked under 8.04, but quit working. It finally started working again about 6 months ago, when the backports finally caught up.

    Dell and HP are known for using really old Wifi cards in their low to mid-range laptops. Then they have implemented code to brick the machine if you attempt to swap out the Wifi card for a better one. I don't know if Acer follows the same policy, but I wouldn't put it past them.

    The other two responses above say what you need to do, but I wanted you to know that the fault is probably due to a really old card for which there is no Linux driver. Waiting for a backport to be written is a solution, but what I did was get a modern PCMCIA Wifi card and plug that in. Once my internal card started working, I put the PCMCIA card back in it's box to save for the next time it happens.

    Best of luck,

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