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Thread: Qualified Wireless Adapters for Ubuntu 12.10

  1. #1
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    Qualified Wireless Adapters for Ubuntu 12.10

    I am trying to find out which wireless adapters are known to be working with Ubuntu 12.10. I have tried over the past few days to get my ASUS USB N-13 wireless adapter to work under 12.10 (with some great help from this forum), but with no luck. I'm to the point that I will return the ASUS adapter to purchase one that is known to work. Please let me know if you are aware of or currently have a wireless adapter working under 12.10. Thanks.

  2. #2
    ahallubuntu is offline Chocolate-Covered Ubuntu Beans
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    Re: Qualified Wireless Adapters for Ubuntu 12.10

    Quote Originally Posted by dccmgb View Post
    I am trying to find out which wireless adapters are known to be working with Ubuntu 12.10. I have tried over the past few days to get my ASUS USB N-13 wireless adapter to work under 12.10 (with some great help from this forum), but with no luck. I'm to the point that I will return the ASUS adapter to purchase one that is known to work. Please let me know if you are aware of or currently have a wireless adapter working under 12.10. Thanks.
    From your profile, it appears you tried to use ndiswrapper? That's not what I recommend - I recommend instead building the latest driver from Realtek for the RTL8192CU chipset inside the Asus dongle. I have built this driver many times including on 12.10 and I know it works. I use my dongle (not Asus but same chip inside) every day on 12.04 to stream TV and it works well.

    12.10 (and 12.04) has a built-in driver that sort of works but is not reliable - I found it almost unusable. You have to replace it with Realtek's driver. It is not the Windows driver (so no ndiswrapper), it is a native Linux driver you build.

    Have you tried following instructions like these?

    http://ubuntuforums.org/showpost.php...56&postcount=2

  3. #3
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    Re: Qualified Wireless Adapters for Ubuntu 12.10

    We tried many options with the built-in driver and you're right, it is unstable (did not work).

    The driver shown on the Realtek site for the RTL8192cu is for Linux Kernel 2.6.18~2.6.38 and Kernel 3.0.8. I was under the impression that particular driver would not work for Ubuntu 12.10. Perhaps I have misunderstood. Please advise.

  4. #4
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    Re: Qualified Wireless Adapters for Ubuntu 12.10

    USB wireless adapters, you say?

    I have a Belkin Basic Wireless USB Adapter ( I believe the product # is F7D1101 ) that worked without requiring any software installation. It is, at least on my computer, a literal plug and play.

  5. #5
    ahallubuntu is offline Chocolate-Covered Ubuntu Beans
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    Re: Qualified Wireless Adapters for Ubuntu 12.10

    Quote Originally Posted by dccmgb View Post
    We tried many options with the built-in driver and you're right, it is unstable (did not work).

    The driver shown on the Realtek site for the RTL8192cu is for Linux Kernel 2.6.18~2.6.38 and Kernel 3.0.8. I was under the impression that particular driver would not work for Ubuntu 12.10. Perhaps I have misunderstood. Please advise.
    The driver listed does say it only supports Kernel 3.0.8 but that may mean that's the last one they tested. But as I said, I have built this driver many times and I have (essentially) the same dongle that you have - same Realtek chipset. Given that I've used it for months with the 3.2 kernel in 12.04 and that I've also built it in 12.10 and it works there, too, I suggest you try it.

    Please read my instructions (link above) carefully. You MUST blacklist the files as I describe, otherwise the original driver will be loaded instead. If you do "sudo lshw -C network" and the driver still shows "rtl8192cu" you didn't do it properly. The new module is named simply "8192cu" so if you show that loaded, you built it correctly.

  6. #6
    ahallubuntu is offline Chocolate-Covered Ubuntu Beans
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    Re: Qualified Wireless Adapters for Ubuntu 12.10

    Quote Originally Posted by Arkenbrien View Post
    USB wireless adapters, you say?

    I have a Belkin Basic Wireless USB Adapter ( I believe the product # is F7D1101 ) that worked without requiring any software installation. It is, at least on my computer, a literal plug and play.
    Documents say this uses a slightly different Realtek chipset - RTL8188SU, which is a slightly different driver according to Realtek's site. (Linux docs suggest the r8712u driver is used for your dongle; you can verify by doing "sudo lshw -C network" and see what driver is loaded for your wireless card.)

    Even the RTL8192CU (aka 8188CU) gets a driver loaded in 12.04 and 12.10 and SORT of works...but it can't reliably connect to networks every time and is basically unusable.

  7. #7
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    Re: Qualified Wireless Adapters for Ubuntu 12.10

    Sorry, I am a very basic user. Is the exact command as follows:
    /etc/modprobe.d/blacklist.conf : blacklist rtl8192cu

    And then the same for rtl_common and rtlwifi?
    Also, I am not sure of the command to add 8192cu to the end of the file if you could type out.
    And I would guess that I do the blacklist before I install the new driver from realtek? Thanks.

  8. #8
    ahallubuntu is offline Chocolate-Covered Ubuntu Beans
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    Re: Qualified Wireless Adapters for Ubuntu 12.10

    These are not commands - they are two files you must edit.

    In a terminal, you can do it this way:

    Code:
    gksu gedit /etc/modprobe.d/blacklist.conf
    Go to the bottom of the file, add those three lines, put a blank line under the last line, save the file, exit. Now edit the modules file:

    Code:
    gksu gedit /etc/modules
    Go to the bottom of the file and add one line at the end - just the name of the module

    8192cu

    and put a blank line under it, then save the file and exit.

    However, it should already be working without doing these two edits. They are required to make it continue to work after you reboot however.

    Don't erase the downloaded file you extracted and built. If you do an update that builds a new kernel (once in a while - usually the ones that say "a reboot is required" after updates are done), you need to go build the module again. But you can skip the blacklisting step and adding the module name step in the future - just do the install.sh again.

  9. #9
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    Re: Qualified Wireless Adapters for Ubuntu 12.10

    Ok, I have done the 2 gsku gedit procedures. Now when I do a "sudo lshw -C network" nothing really displays like it did the last time (there was the CPUID and PCI (sysfs) flashed but then went away) and it then goes back to my command prompt. Does this sound right? If yes, I will proceed with installing the driver.

  10. #10
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    Re: Qualified Wireless Adapters for Ubuntu 12.10

    Update. I believe my wireless connection is working now. The LED on my driver is now blinking (as it does in Windows XP) and I have held the connection for some time now. Before, the LED would stay constantly lit and the connection would drop in < 10 minutes.

    One question, in this particular order, I performed the 2 gsku gedit procedures, rebooted, then built the driver per your instructions, rebooted, and as mentioned, everything seems to be working with the wireless adapter/connection.

    However, when I now do a "sudo lshw -C network", it still shows the driver=rtl8192cu. In your instructions above, you said if this occurred, the procedure was not done correctly. Can you let me know what corrections need to be make? Thanks.

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