Software & AppsOperating SystemLinux

Edimax EW-7811Un WiFi Dongle: Ubuntu Driver Guide

Ubuntu 15

In this guide, we will discuss how to install and configure the Edimax EW-7811Un WiFi Dongle on an Ubuntu system. The Edimax EW-7811Un is a popular WiFi dongle that offers reliable and fast WiFi connectivity. However, getting it to work on Ubuntu might require a bit of tweaking. Let’s dive in.

Quick Answer

To install and configure the Edimax EW-7811Un WiFi Dongle on Ubuntu, you can use the built-in Ubuntu driver, the official Edimax driver, the rtl8192cu-fixes driver, or manually install the official Edimax driver. Each method has its own steps and requirements, so you can try different methods if one doesn’t work for you.

Introduction

The Edimax EW-7811Un uses the Realtek RTL8192CU chipset, which is supported out of the box by most Linux distributions, including Ubuntu. However, if you encounter any issues, this guide will provide you with alternative solutions.

Method 1: Using the Built-in Ubuntu Driver

Ubuntu includes a default driver for the RTL8192CU chipset. Therefore, in most cases, the WiFi dongle should work right out of the box. However, if you encounter any issues, you can try the following methods.

Method 2: Using the Official Edimax Driver

If the built-in driver doesn’t work, you can try using the official Edimax driver. Here are the steps for Ubuntu 14.04 LTS and 14.10:

  1. Open a terminal (Ctrl+Alt+T).
  2. Update your system and install necessary packages with the following command:
    sudo apt-get update && sudo apt-get install git build-essential linux-headers-generic dkms
    This command updates your system, installs the git, build-essential, linux-headers-generic, and dkms packages. git is a version control system that lets you download the driver source code. build-essential and linux-headers-generic are required to compile the driver. dkms is a framework that allows Linux to update certain pieces of your system’s software without changing the whole kernel.
  3. Clone the driver repository using git:
    git clone https://github.com/dz0ny/rt8192cu.git --depth 1
    This command downloads the driver source code from the GitHub repository.
  4. Navigate to the downloaded directory and make the driver:
    cd rt8192cu
    sudo make dkms
    This command compiles the driver and installs it using DKMS.
  5. Reboot your system.

Method 3: Using the rtl8192cu-fixes Driver

If the official Edimax driver doesn’t work, you can try using the rtl8192cu-fixes driver. This driver is a fixed version of the RTL8192CU driver that solves some connectivity issues. Here are the steps:

  1. Open a terminal.
  2. Update your system and install necessary packages:
    sudo apt-get update
    sudo apt-get upgrade
    sudo apt-get dist-upgrade
    sudo apt-get install linux-headers-generic build-essential dkms git
  3. Clone the driver repository:
    git clone https://github.com/pvaret/rtl8192cu-fixes.git
  4. Navigate to the downloaded directory and install the driver:
    cd rtl8192cu-fixes
    sudo dkms add ./rtl8192cu-fixes
    sudo dkms install 8192cu/1.11
    sudo depmod -a
  5. Blacklist the native driver and disable power management:
    sudo cp ./rtl8192cu-fixes/blacklist-native-rtl8192.conf /etc/modprobe.d/
    sudo cp ./rtl8192cu-fixes/8192cu-disable-power-management.conf /etc/modprobe.d/
  6. Reboot your system.

Method 4: Manual Installation of the Official Edimax Driver

If none of the above methods work, you can try manually installing the official Edimax driver. Here are the steps:

  1. Download the driver from the Edimax website.
  2. Extract the downloaded files and navigate to the extracted folder using the terminal.
  3. Make the install.sh file executable and run it:
    chmod +x install.sh
    ./install.sh
  4. Reboot your system.

Conclusion

In this guide, we have discussed four methods to install and configure the Edimax EW-7811Un WiFi Dongle on Ubuntu. Remember, the success of each method depends on your specific system configuration. Therefore, if one method doesn’t work, don’t lose hope and try the next one. With a bit of patience and perseverance, you should be able to get your Edimax EW-7811Un WiFi Dongle working on Ubuntu.

Can I use the Edimax EW-7811Un WiFi Dongle on Ubuntu without installing any additional drivers?

Yes, in most cases, Ubuntu includes a default driver for the Realtek RTL8192CU chipset, which the Edimax EW-7811Un uses. Therefore, the WiFi dongle should work right out of the box.

How can I check if the Edimax EW-7811Un WiFi Dongle is recognized by Ubuntu?

You can check if the WiFi dongle is recognized by running the command lsusb in the terminal. Look for a line that mentions "Realtek Semiconductor Corp." or "RTL8192CU" to confirm the presence of the dongle.

What should I do if the built-in driver doesn’t work?

If the built-in driver doesn’t work, you can try using the official Edimax driver or the rtl8192cu-fixes driver. The instructions for both methods are provided in the guide above.

How can I update my system and install necessary packages?

To update your system and install necessary packages, you can use the apt-get command. Run sudo apt-get update to update your system and sudo apt-get install [package] to install a specific package. Refer to the guide for the specific packages required for each method.

Can I use the Edimax EW-7811Un WiFi Dongle on other Linux distributions?

Yes, the Edimax EW-7811Un WiFi Dongle is supported by most Linux distributions. However, the installation process may vary depending on the distribution. It is recommended to refer to the documentation or forums of the specific distribution for installation instructions.

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