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Thread: TL-WN723N v.3-RTL8188EU

  1. #1
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    Question TL-WN723N v.3-RTL8188EU

    Hello,

    I have tried vary of solutions to run tl-wn723 v.3 in lubuntu14.04lts.
    Downloaded rtl8188eu-master.zip and completed installation steps by

    make
    sudo make install

    Then when I enterred,

    sudo modprobe 8188eu

    here is the result:

    "modprobe:error:could not insert '8188eu':device or resource busy"

    Can anybody help me?
    Last edited by ANSELM_KEREM; May 7th, 2014 at 02:58 PM. Reason: Editing the Heading

  2. #2
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    Re: TL-WN723N v.3-RTL8188EU

    That probably means that the native default driver rtl8188eu was already loaded and running:
    Code:
    lsmod | grep 8188
    What trouble are you having that caused you to try a different driver?
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #3
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    Re: TL-WN723N v.3-RTL8188EU

    Hi,

    Thanks for reply.

    Output for that code is
    "r8188eu 755586 0"

    Probably as you said it is running right now. But I can't still use the usb modem.

    Well, I've searched for some solutions to run usb wireless modem.
    And most of them were pointing rtl8188eu.
    Doesn't it fix with TL-WN723v3 modem?
    Should I use different one?

  4. #4
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    Re: TL-WN723N v.3-RTL8188EU

    To give expand information about my operating system:

    Kernel-Linux 3.13.0-24-generic(i686)
    Default C Compiler-GNU C Compiler Version 4.8.2(Ubuntu 4.8.2-19Ubuntu1)
    Distribution-Ubuntu 14.04LTS

  5. #5
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    Re: TL-WN723N v.3-RTL8188EU

    With the modem inserted, please run and post:
    Code:
    lsusb
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  6. #6
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    Re: TL-WN723N v.3-RTL8188EU

    Here is the output;

    Bus 001 Device 002: ID 0bda:8179 Realtek Semiconductor Corp.
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    kerem@hp:~$
    Thanks.
    Last edited by ANSELM_KEREM; May 7th, 2014 at 10:45 PM. Reason: Adjust

  7. #7
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    Re: TL-WN723N v.3-RTL8188EU

    0bda:8179 Realtek Semiconductor Corp.
    It turns out that the loaded driver, r8188eu, is correct for your device; from modinfo:
    Code:
    $ modinfo r8188eu | grep 8179
    alias:          usb:v07B8p8179d*dc*dsc*dp*ic*isc*ip*in*
    alias:          usb:v0BDAp8179d*dc*dsc*dp*ic*isc*ip*in*
    If you have the device, the driver and it loads automatically but doesn't work as expected, something else is wrong. Compiling a different driver is unlikely to fix the real, underlying problem. Let's see if the logs hold any clues:
    Code:
    dmesg | grep 8188
    rfkill list all
    iwconfig
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  8. #8
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    Re: TL-WN723N v.3-RTL8188EU

    Yes, I have that device. And here are the other outputs:


    $ dmesg | grep 8188

    [ 0.338188] pci 0000:00:1f.1: reg 0x20: [io 0x4c40-0x4c4f]

    [ 21.235435] r8188eu: module is from the staging directory, the quality is unknown, you have been warned.

    [ 21.264032] Chip Version Info: CHIP_8188E_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0)

    [ 21.477395] usbcore: registered new interface driver r8188eu

    [ 21.690338] 8188eu: module verification failed: signature and/or required key missing - tainting kernel

    [ 21.698402] Error: Driver 'r8188eu' is already registered, aborting...

    While making a copy of editor outputs to notepad there could be some mistakes. Because I am texting from a windows. Sorry for that.

  9. #9
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    Re: TL-WN723N v.3-RTL8188EU

    Second Code:

    $ rfkill list all


    0: phy
    0: Wireless LAN

    Soft blocked: no

    Hard blocked: yes


  10. #10
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    Re: TL-WN723N v.3-RTL8188EU

    irda0 no wireless extensions.


    lo no wireless extensions.


    eth0 no wireless extensions.


    eth1 unassociated ESSIDff/any Nickname:"ipw2100"


    Mode:Managed Channel=0 Access Point: Not-Associated
    Bit Rate: 0 kb/s Tx-Power: off


    Retry short limit:7 RTS thr: off Fragment thrff


    Power Management: off


    Link Quality: 0 Signal level: 0 Noise level: 0


    Rx invalid nwid: 0 Rx invalid crypt: 0 Rx invalid frag: 0


    Tx excessive retries: 0 Invalid misc: 0 Missed beacon: 0


    wlan1 unassociated Nickname:"<WIFI@REALTEK>"


    Mode:Auto Frequency=2.412 GHz Access Point: Not-Associated


    Sensitivity: 0/0

    Retryff RTS thr: off Fragment thrff


    Power Management: off


    Link Quality:0 Signal level: 0 Noise level: 0


    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag: 0


    Tx excessive retries:0 Invalid misc:0 Missed beacon: 0
    While making a copy of editor outputs to notepad there could be some mistakes. Because I am texting from a windows. Sorry for that.

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