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Thread: no wifi adapter found ubuntu 18.04

  1. #1
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    no wifi adapter found ubuntu 18.04

    script result :http://paste.ubuntu.com/p/dHC8F3Gby9/
    my WiFi adapter Qualcomm Atheros QCA9565/AR9565 Wireless Network Adapter.
    Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036]
    dual boot with windows 10
    works fine in windows 10
    the WiFi worked while Ubuntu was installing stopped working after the reboot.
    Last edited by gugra; July 9th, 2018 at 02:42 AM.

  2. #2
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    Re: no wifi adapter found ubuntu 18.04

    Thread moved to Networking and Wireless
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  3. #3
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    Re: no wifi adapter found ubuntu 18.04

    Old Doc Chili doesn't like this one bit!
    [ 53.099346] ath9k 0000:03:00.0: PCI INT A: not connected
    [ 53.099395] ath9k 0000:03:00.0: request_irq failed
    [ 53.099413] ath9k: probe of 0000:03:00.0 failed with error -107
    Would you please check in the BIOS of the computer and make sure that IRQs are set to auto-select or available? Reserved, disabled or unavailable are all not recommended.

    In fact, you may probably be able to reset the BIOS to defaults. https://i2.wp.com/neosmart.net/wiki/...set-bios-1.jpg
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.

  4. #4
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    Re: no wifi adapter found ubuntu 18.04

    IRQ is not a option on the BIOS but I reset the BIOS to default also I don't know if it is a related issue but my computer doesn't turn off it gets stuck in the ubuntu logo.
    Last edited by gugra; July 9th, 2018 at 05:15 PM.

  5. #5
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    Re: no wifi adapter found ubuntu 18.04

    I don't know if it is a related issue but my computer doesn't turn off it gets stuck in the ubuntu logo.
    It may well be related. I suggest that you debug that issue first. Please ask here: https://ubuntuforums.org/forumdisplay.php?f=331
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.

  6. #6
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    Re: no wifi adapter found ubuntu 18.04

    found IRQ setting in BIOS there is only two options quiet or continuous which do I choose

  7. #7
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    Re: no wifi adapter found ubuntu 18.04

    Quote Originally Posted by gugra View Post
    found IRQ setting in BIOS there is only two options quiet or continuous which do I choose
    It seems obvious to me. Try one setting and reboot. Check:
    Code:
    dmesg | grep ath
    Are the messages still there?
    [ 53.099346] ath9k 0000:03:00.0: PCI INT A: not connected
    [ 53.099395] ath9k 0000:03:00.0: request_irq failed
    [ 53.099413] ath9k: probe of 0000:03:00.0 failed with error -107
    Or are they gone?

    If the error messages are still there, go back into the BIOS and try the other setting, reboot and check again.

    Our hope is, of course, that one setting or the other will stop the error and start the wireless.

    Tha ath9k driver is usually pretty solid and trouble-free.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.

  8. #8
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    Re: no wifi adapter found ubuntu 18.04

    One could try "iommu=soft" as boot parameter

  9. #9
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    Re: no wifi adapter found ubuntu 18.04

    dmesg | grep ath
    doesn't show anything now

  10. #10
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    Re: no wifi adapter found ubuntu 18.04

    Quote Originally Posted by gugra View Post
    dmesg | grep ath
    doesn't show anything now
    How about:
    Code:
    sudo modprobe ath9k && dmesg | grep ath
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.

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