Uninstalling the Wi-Fi Driver in Ubuntu: A Complete Guide for Beginners and Experienced Users

Uninstalling the Wi-Fi driver in Ubuntu This may be necessary in a variety of situations, from conflicts between software versions to the need to install an alternative driver to improve connection stability. Most often, problems arise with adapters. Broadcom, Realtek And Intel, where the standard drivers from the repositories work incorrectly or are missing altogether. However, before proceeding with the removal, it's important to understand: incorrect actions can leave the system without a network connection at all.

This article will help you understand how to safely uninstall the current driver, check dependent packages, and restore Wi-Fi functionality. We'll cover both manual methods via the terminal and graphical tools, and we'll also address common errors that may arise during the process. If you've encountered Wi-Fi problems after a system update, or your adapter is detected as an unknown device, you'll find the solution here.

We will pay special attention to drivers with closed source code (for example, bcmwl-kernel-source For Broadcom), as removing them requires additional steps to clean the system of residual files. We'll also cover the issue of backing up configurations so you can quickly roll back to a working version if something goes wrong.

Why you might need to uninstall your Wi-Fi driver

While driver removal may seem like a last resort, it's actually one of the most effective ways to resolve connection issues. Here are the most common reasons why users Ubuntu resort to this procedure:

• 🔄 Driver version conflict: After updating the system or Linux kernel, the old driver may conflict with the new one, resulting in constant connection drops or no network at all.
• 🚫 The adapter is not working correctly: Wi-Fi is detected by the system, but does not catch networks, connects only to certain access points, or works at a reduced speed.
• 🔧 Installing an alternative driver: for example, switching from a proprietary driver Broadcom to the open b43 or vice versa.
• 🐛 Bugs in the current version: some drivers (especially for Realtek RTL88x2bu) contain critical errors that interfere with normal operation.
• 🔄 Cleaning the system: Before installing a new version of Ubuntu or switching to another distribution, it is recommended to remove unnecessary drivers.

Before proceeding with the uninstallation, make sure that the problem is actually related to the driver. To do this, check the system logs (dmesg | grep wifi) or the state of network interfaces (ip a). If the adapter does not appear in the list of devices (lspci -knn | grep Net -A3), the problem may be hardware related.

⚠️ Attention: If you're using a laptop with a single Wi-Fi adapter and don't have access to a wired connection (Ethernet), prepare a live Ubuntu disc or another distribution in advance. This will help you restore your system if the network connection is completely lost after uninstalling the driver.

Checking the Current Wi-Fi Driver in Ubuntu

Before uninstalling, you need to determine exactly which driver is currently being used by your adapter. There are several ways to do this, some of which will provide additional information about the device's status.

The easiest method is to use the command lspci for PCI devices or lsusb For USB adapters. For example, for PCI:

lspci -knn | grep -iA3 net

In the output, pay attention to the line Kernel driver in use — this is the name of the active driver. It's similar for USB adapters:

lsusb
dmesg | grep -i wifi

More detailed information can be obtained through the utility lshw:

sudo lshw -class network

Not only the driver will be listed here, but also logical interface name (For example, wlp3s0), as well as supported Wi-Fi standards (802.11a/b/g/n/ac).

If you see multiple drivers for one device in the command output (for example, wl And b43), this means that there are conflicting modules installed in the system. In this case, you need to delete everything except what you need.

Preparing the system before removing the driver

Removing the Wi-Fi driver interferes with critical system components, so before you begin, it's important to take a few preparatory steps. This will help prevent network connection loss and simplify rollbacks in the event of an error.

Firstly, Make sure you have a backup method of connecting to the internetThis could be:

• 🔌 A wired connection (Ethernet) is the most reliable option.
• 📱 USB modem or smartphone in hotspot mode (via USB or Bluetooth).
• 💿 Ubuntu live disk - if there are no other options.

Secondly, create a backup of your current network configurationsTo do this, copy the files from the directory /etc/NetworkManager/:

sudo cp -r /etc/NetworkManager /etc/NetworkManager_backup

It is also useful to keep a list of installed Wi-Fi related packages:

apt list --installed | grep -iE 'firmware|wireless|wifi|bcm|rtl|iwl' > wifi_packages.txt

If you are using proprietary drivers (eg. bcmwl-kernel-source For Broadcom), write down their exact names—you'll need them for complete removal. Check dependent packages:

apt-cache depends <package_name>

⚠️ Attention: Some drivers (for example, for Realtek RTL88x2bu) are installed via DKMS (Dynamic Kernel Module Support). If you remove such a driver without clearing DKMS, it may be automatically restored after a kernel update. To avoid this, use the command sudo dkms remove -m <module_name> -v <version> --all.

Back up network configurations|Check for an alternate internet connection|Write down the current driver name|Save a list of dependent packages|Check for DKMS modules-->

Uninstalling the Wi-Fi driver via the terminal

Now let's move on to the removal itself. The process depends on the driver type: proprietary (closed) or open (from the kernel repositories). Let's consider both options.

1. Removing proprietary drivers (e.g. Broadcom wl)

Proprietary drivers such as bcmwl-kernel-source for adapters Broadcom, are installed through packages .deb and may conflict with open source alternatives. To remove them completely:

sudo apt purge bcmwl-kernel-source

After removing the package Be sure to block it from being installed again, as the system may try to restore it during the next update:

sudo apt-mark hold bcmwl-kernel-source

To clean up residual files, use:

sudo apt autoremove

2. Removing open drivers (b43, rtl8xxxu, etc.)

Open source drivers are typically included in the Linux kernel, but can be installed as separate modules. For example, to remove a driver rtl8821ce For Realtek RTL8821CE:

sudo modprobe -r rtl8821ce # Unloading a module from the kernel
sudo rmmod rtl8821ce # Alternative method of unloading

If the driver was installed via DKMS, remove it as follows:

sudo dkms remove -m rtl8821ce -v 5.5.2 --all
sudo dkms uninstall -m rtl8821ce -v 5.5.2 --all

For a complete cleanup, also remove firmware files if they were installed manually:

sudo rm -rf /lib/firmware/rtlwifi/

⚠️ Attention: Deleting files from /lib/firmware may cause other network devices to stop working if they use shared firmware. Before deleting, review the directory's contents and ensure you're only deleting files related to your adapter.

3. Driver blacklist

If a driver is embedded in the kernel and can't be removed using standard methods, it can be blocked using a blacklist. To do this:

1. Open the blacklist file:

   sudo nano /etc/modprobe.d/blacklist.conf

2. Add a line with the module name:

   blacklist <driver_name>

   For example, for b43:

   blacklist b43

3. Save the file (Ctrl+O, then Ctrl+X) and update the initramfs:

   sudo update-initramfs -u

Restoring Wi-Fi after uninstalling the driver

After uninstalling the old driver, the system may be left without functional Wi-Fi. In this case, you will need to either install an alternative driver or restore the removed one. Let's consider both scenarios.

1. Installing an alternative driver

If you have uninstalled a proprietary driver (eg. wl For Broadcom), you can try an open alternative b43To do this:

sudo apt update
sudo apt install firmware-b43-installer

For adapters Realtek (For example, RTL8821CE) installation from source may be required:

sudo apt install git dkms
git clone https://github.com/tomaspinho/rtl8821ce
cd rtl8821ce
chmod +x dkms-install.sh
sudo ./dkms-install.sh

After installation, reboot the system and check Wi-Fi operation:

sudo reboot
ip a # Check for the presence of a network interface (e.g. wlp3s0)

2. Roll back to the previous driver version

If the new driver performs worse than the old one, you can restore the removed one. To do this:

1. Check the history of installed packages:

   grep -i "install\|remove" /var/log/apt/history.log | grep -i wifi

2. Install the required version of the package (for example, for bcmwl-kernel-source):

   sudo apt install bcmwl-kernel-source=6.30.223.271+bdcom-0ubuntu4

3. Unlock the package if it has been blocked:

   sudo apt-mark unhold bcmwl-kernel-source

If the package was removed along with its dependencies, restore them:

sudo apt install --reinstall linux-firmware

Troubleshooting common driver uninstallation errors

Even when following instructions strictly, errors can still occur. Let's look at the most common issues and how to solve them.

If none of the methods helped, check system logs for errors:

journalctl -xe | grep -i wifi
dmesg | grep -i firmware

Pay special attention to messages like firmware: failed to load — they indicate missing firmware files. In this case, download the necessary files from the manufacturer's official website and place them in /lib/firmware/.

Alternative ways to manage Wi-Fi drivers

Not everyone is comfortable using the terminal, so Ubuntu offers graphical tools for managing drivers. Let's look at the two main methods.

1. Additional Drivers utility

This is a built-in application for managing proprietary drivers. To open it:

1. Go to Applications menu → Additional drivers (or do sudo software-properties-gtk --open-tab=4).
2. Find your Wi-Fi adapter in the list. The system will display available drivers (for example, Broadcom 802.11 Linux STA wireless driver).
3. Select the required driver and click Apply changes.

If a driver is marked as "not in use," it means it's installed but not loaded. In this case:

sudo modprobe -v <driver_name>

2. Utility Ubuntu Drivers (for server editions)

On server versions of Ubuntu or without a graphical interface, you can use the utility ubuntu-drivers:

sudo ubuntu-drivers list # List available drivers
sudo ubuntu-drivers autoinstall # Automatically install recommended drivers

To remove a driver using this utility, first identify its package:

sudo ubuntu-drivers list-devices

Then remove the package in the standard way via apt.

⚠️ Attention: Graphical utilities don't always display all available drivers, especially if they're installed from source or via DKMS. For full control, it's recommended to use the terminal.

FAQ: Frequently asked questions about uninstalling Wi-Fi drivers in Ubuntu

sudo dkms remove -m <name> -v <version> --all

sudo rm -rf /usr/src/<name>-<version>

sudo dkms autoinstall