Software & AppsOperating SystemLinux

How To Uninstall and Reinstall WiFi Drivers in Ubuntu

Ubuntu 21

In this article, we’ll delve into the process of uninstalling and reinstalling WiFi drivers in Ubuntu. This is a common troubleshooting step when you’re experiencing connectivity issues or other WiFi-related problems. Let’s get started.

Identifying Your WiFi Driver

The first step in this process is to identify the WiFi driver your system is currently using. This can be done by running the following command in the terminal:

lspci -knn | grep Net -A3

This command performs the following functions:

  • lspci lists all PCI devices.
  • -knn shows the kernel drivers handling each device and the kernel modules available for each device.
  • grep Net -A3 filters the output to show only network-related devices.

Look for the line that says “Kernel driver in use”. This will indicate the driver currently being used by your WiFi adapter.

Disabling the WiFi Driver

If you’re experiencing issues with your WiFi and you want to disable the driver, you can do so with the following command:

sudo modprobe -r <driver_name>

Replace <driver_name> with the name of the driver you want to disable. The modprobe -r command removes, or “unloads,” a module from the Linux kernel. This command requires superuser permissions, hence the sudo.

Re-enabling the WiFi Driver

To re-enable the WiFi driver, you can use the following command:

sudo modprobe <driver_name>

Again, replace <driver_name> with the name of your driver. The modprobe command adds, or “loads,” a module to the Linux kernel. This command also requires superuser permissions.

Uninstalling the WiFi Driver

To completely uninstall the WiFi driver, you can use the following command:

sudo apt remove <driver_package_name>

Replace <driver_package_name> with the name of the package that contains the driver. The apt remove command removes packages. In this case, it removes the package containing your WiFi driver.

Reinstalling the WiFi Driver

Finally, to reinstall the WiFi driver, you can use the package manager to install the driver package again. For example:

sudo apt install <driver_package_name>

Replace <driver_package_name> with the name of your driver package. The apt install command installs packages. In this case, it reinstalls the package containing your WiFi driver.

Conclusion

In this article, we’ve covered how to identify, disable, uninstall, and reinstall WiFi drivers in Ubuntu. These steps can be helpful for troubleshooting WiFi issues. However, it’s important to note that these steps assume that the driver you are using is the correct one for your hardware. If you’re still experiencing issues after reinstalling the driver, the problem could be due to a kernel bug, hardware issue, or other factors. In such cases, you may need to seek additional support or perform further troubleshooting.

Remember to always be careful when making changes to system drivers and configurations. Always back up your data and make sure you understand the changes you’re making before you make them. Happy troubleshooting!

How do I identify the WiFi driver in Ubuntu?

To identify the WiFi driver in Ubuntu, open the terminal and run the command lspci -knn | grep Net -A3. Look for the line that says "Kernel driver in use". This will indicate the driver currently being used by your WiFi adapter.

How do I disable the WiFi driver in Ubuntu?

To disable the WiFi driver in Ubuntu, open the terminal and run the command sudo modprobe -r <driver_name>, replacing <driver_name> with the name of the driver you want to disable. This command requires superuser permissions.

How do I re-enable the WiFi driver in Ubuntu?

To re-enable the WiFi driver in Ubuntu, open the terminal and run the command sudo modprobe <driver_name>, replacing <driver_name> with the name of your driver. This command also requires superuser permissions.

How do I uninstall the WiFi driver in Ubuntu?

To uninstall the WiFi driver in Ubuntu, open the terminal and run the command sudo apt remove <driver_package_name>, replacing <driver_package_name> with the name of the package that contains the driver. This command removes the package containing your WiFi driver.

How do I reinstall the WiFi driver in Ubuntu?

To reinstall the WiFi driver in Ubuntu, open the terminal and run the command sudo apt install <driver_package_name>, replacing <driver_package_name> with the name of your driver package. This command reinstalls the package containing your WiFi driver.

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