Install Realtek d723 WiFi driver for GNU/Linux
I’ve been doing a lot of Linux Mint installations lately and one very annoying thing that I found in 2 laptops was the non availability of WiFi driver. Apparently, it’s a new hardware and is not in the Linux kernel.
The hardware is Realtek device d723 . This new WiFi hardware is being shipped in new PCs and laptops now. Without having the internet, one can’t do almost anything. So it’s important to have this fixed up.
UPDATE : Added a new method to make it work on Ubuntu 18.04 LTS
If method 1 doesn’t work for you, try method 2 or method 3.
Getting Internet
We need a temporary internet connection to fix WiFi. Ways to connect :
- Connect USB cable and use USB Tethering in your phone to connect your computer to the internet (through phone’s cellular data/WiFi)
- Use wired ethernet cable for connecting to internet
Finding Device
Open a terminal and do the command lspci . You will see all the PCI devices of your system. If you have the d723 device, you can see it at the bottom :
Or to quickly know if you have the d723 WiFi hardware, do :
Prerequisite
You should install the corresponding header of your kernel :
Next, install the packages necessary for building :
Method 1
This is the RECOMMENDED METHOD because in future, when kernel is updated, the installed driver will be automatically compiled to make it work in newer kernel.
To simplify everything, run the following commands one by one :
Restart your computer. And you’ll get your WiFi !
Method 2
To simplify everything, run the following commands one by one :
What the commands does is download the GitHub repository (extended branch) with wget . If your system doesn’t have wget , install it :
After that, the downloaded zip file is extracted with unzip . Then inside the extracted folder, the drivers are compiled and installed with make & make install
After that the drivers are enabled using the modprobe command with sudo .
PS : Thanks to Bruno Loy for confirming that this works !
Method 3
smlinux has made a driver for d723 . Compiling it and installing it will help you connect to WiFi.
First step is to identify the version of your Linux kernel :
The driver is different according to the Linux kernel version. Only the driver to download will vary. Rest of the installation steps are the same.
Download
Now according to the kernel version download the driver :
4.11 and up
If the Linux kernel version is 4.11 or greater (>=4.11), then download this file :
4.10 and down
If the Linux kernel version is 4.10 or below ( /etc/rc.local :
Replace gedit above with whatever text editor you have.
Then, in that file add :
Replace ant_sel=1 above with the one that worked for you. Either ‘1’ or ‘2’.
Источник
Realtek wifi drivers linux
2019-07-11: Updated to compile against kernel 5.2
Realtek 802.11ac (rtl8812au)
This is a fork of the Realtek 802.11ac (rtl8812au) v4.2.2 (7502.20130507) driver altered to build on Linux kernel version >= 3.10.
My D-Link DWA-171 wireless dual-band USB adapter needs the Realtek 8812au driver to work under Linux.
The current rtl8812au version (per nov. 20th 2013) doesn’t compile on Linux kernels >= 3.10 due to a change in the proc entry API, specifically the deprecation of the create_proc_entry() and create_proc_read_entry() functions in favor of the new proc_create() function.
The Makefile is preconfigured to handle most x86/PC versions. If you are compiling for something other than an intel x86 architecture, you need to first select the platform, e.g. for the Raspberry Pi, you need to set the I386 to n and the ARM_RPI to y:
There are many other platforms supported and some other advanced options, e.g. PCI instead of USB, but most won’t be needed.
The driver is built by running make , and can be tested by loading the built module using insmod :
After loading the module, a wireless network interface named Realtek 802.11n WLAN Adapter should be available.
Installing the driver is simply a matter of copying the built module into the correct location and updating module dependencies using depmod :
The driver module should now be loaded automatically.
Automatically rebuilds and installs on kernel updates. DKMS is in official sources of Ubuntu, for installation do:
Источник
Realtek wifi drivers linux
News: A new version of this driver is now available. Testing has shown it to be a solid driver. The driver located here will be discontinued in the near future so please transition to the new driver as you are able to do so.
Linux Driver for USB WiFi Adapters that are based on the RTL8811AU and RTL8821AU Chipsets
- v5.8.2.3 (Realtek) (2020-04-01)
- Plus updates from the Linux community
- IEEE 802.11 b/g/n/ac WiFi compliant
- 802.1x, WEP, WPA TKIP and WPA2 AES/Mixed mode for PSK and TLS (Radius)
- IEEE 802.11b/g/n/ac Client mode
- Support wireless security for WEP, WPA TKIP and WPA2 AES PSK
- Support site survey scan and manual connect
- Support power saving mode
- Supported interface modes
- IBSS
- Managed
- AP
- Monitor
- P2P-client
- P2P-GO
- Log level control
- LED control
- Power saving control
- VHT control (allows 80 MHz channel width in AP mode)
A FAQ is available at the end of this document.
- Kernels: 2.6.24 — 5.1 (Realtek)
- Kernels: 5.2 — 5.15
Tested Linux Distributions
Arch Linux (kernel 5.4)
Arch Linux (kernel 5.9)
Fedora (kernel 5.11)
Linux Mint 20.2 (Linux Mint based on Ubuntu) (kernel 5.11)
Linux Mint 20 (Linux Mint based on Ubuntu) (kernel 5.4)
LMDE 4 (Linux Mint based on Debian) (kernel 4.19)
Manjaro 20.1 (kernel 5.9)
Raspberry Pi OS (2021-01-11) (ARM 32 bit) (kernel 5.10)
Raspberry Pi Desktop (x86 32 bit) (kernel 4.19)
Ubuntu 21.04 (kernel 5.11)
Ubuntu 20.04 (kernel 5.4)
Download Locations for Tested Linux Distributions
- Alfa AWUS036ACS
- Buffalo WI-U2-433DHP
- Edimax EW-7811UTC
- Edimax EW-7811UAC
- Edimax EW-7811UCB
- ELECOM WDC-433DU2H
- GMYLE — AC450
- Netgear A6100
- Planex GW-450S
- TP Link T2U Nano
- TP Link T2U Plus
- Numerous products that are based on the supported chipsets
Warning: Beware of «multi-state» USB WiFi adapters. Some USB WiFi adapters have proprietary Windows drivers onboard. When plugged in, they act like a flash drive or CDROM and on Windows will attempt to start installing the Windows driver. That won’t work on Linux or MAC or any other non-Windows OS so the adapter sits there in flash drive or CDROM mode. The problem is that the state of the adapter has to be changed for the adapter to show up as the device that you expect, in this case, a WiFi adapter. Most modern Linux distributions ship with a utility called «usb-modeswitch» that will handle this issue for you if it has the correct information for your adapter. It is a good utility but if you buy adapters that are «multi-state,» that is one more potential headache you may have to deal with when something goes wrong. Often you can indentify adapters that are «multi-state» as they are advertised as «free driver» or «free installation driver.» If you are looking to buy a USB WiFi adapter for use on Linux, MAC OS, *NIX or anything besides Windows, it is a good idea to seek out single-state adapters.
Note: Some adapter makers change the chipsets in their products while keeping the same model number so please check to confirm that the product you plan to buy has the chipset you are expecting.
The installation instructions are for the novice user. Experienced users are welcome to alter the installation to meet their needs.
Temporary internet access is required for installation. There are numerous ways to enable temporary internet access depending on your hardware and situation. One method is to use tethering from a phone.. Another method to enable temporary internet access is to keep a wifi adapter that uses an in-kernel driver in your toolkit.
You will need to use the terminal interface. The quick way to open a terminal: Ctrl+Alt+T (hold down on the Ctrl and Alt keys then press the T key)
DKMS is used for the installation. DKMS is a system utility which will automatically recompile and install this driver when a new kernel is installed. DKMS is provided by and maintained by Dell.
It is recommended that you do not delete the driver directory after installation as the directory contains information and scripts that you may need in the future.
There is no need to disable Secure Mode to install this driver. If Secure Mode is properly setup on your system, this installation will support it.
Step 1: Open a terminal (Ctrl+Alt+T)
Step 2: Update the system (select the option for the OS you are using)
Step 3: Install the required packages (select the option for the OS you are using)
Step 4: Create a directory to hold the downloaded driver
Step 5: Move to the newly created directory
Step 6: Download the driver
Step 7: Move to the newly created driver directory
Step 8: Warning: this step only applies if you are installing to Raspberry Pi hardware.
Run a preparation script
Step 9: Run the installation script (For automated builds, use NoPrompt as an option)
A file called 8821au.conf will be installed in /etc/modeprobe.d by default.
This file will be read and applied to the driver on each system boot.
To edit the driver options file, run the edit-options.sh script.
Documentation for Driver Options is included in the file 8821au.conf .
Removal of the Driver
Note: This script should be used in the following situations:
- the driver is no longer needed
- a fresh start with default settings is needed
- a new version of the driver needs to be installed
- a major operating system upgrade is going to be applied
Note: This script removes everything that has been installed, with the exception of the packages installed in Step 3 and the driver directory. The driver directory can and probably should be deleted in most cases after running the script.
Step 1: Open a terminal (Ctrl+Alt+T)
Step 2: Move to the driver directory
Step 3: Run the removal script
Recommended WiFi Router/ Access Point Settings
Note: These are general recommendations, some of which may not apply to your specific situation.
Security: Set WPA2-AES. Do not set WPA2 mixed mode or WPA or TKIP.
Channel width for 2.4G: Set 20 MHz fixed width. Do not use 40 MHz or 20/40 automatic.
Channels for 2.4G: Set channel 1 or 6 or 11 depending on the congestion at your location. Do not set automatic channel selection.
Mode for 2.4G: For best performance, set «N only» if you no longer use B or G capable devices.
Network names: Do not set the 2.4G Network and the 5G Network to the same name. Note: Unfortunately many routers come with both networks set to the same name.
Channels for 5G: Not all devices are capable of using DFS channels. It may be necessary to set a fixed channel in the range of 36 to 48 or 149 to 161 in order for all of your devices to work on 5g. (for US, other countries may vary)
Best location for the wifi router/ access point: Near center of apartment or house, at least a couple of feet away from walls, in an elevated location.
Check congestion: There are apps available for smart phones that allow you to check the congestion levels on wifi channels. The apps generally go by the name of WiFi Analyzer or something similar.
After making and saving changes, reboot the router.
Set regulatory domain to correct setting in OS
Check the current setting
If you get 00, that is the default and may not provide optimal performance.
Set it temporarily
Note: Substitute your country code if you are not in the United States.
Set it permanently
Recommendations regarding USB
Moving your USB WiFi adapter to a different USB port has been known to fix a variety of problems. Problems include WiFi going on and off as well as connections coming and going.
If connecting your USB WiFi adapter to a desktop computer, use the USB ports on the rear of the computer. Why? The ports on the rear are directly connected to the motherboard which will reduce problems with interference and disconnection that can happen with front ports that use cables.
If your USB WiFi adapter is USB 3 capable then plug it into a USB 3 port.
Avoid USB 3.1 Gen 2 ports if possible as almost all currently available adapters have been tested with USB 3.1 Gen 1 (aka USB 3) and not with USB 3.1 Gen 2.
If you use an extension cable and your adapter is USB 3 capable, the cable needs to be USB 3 capable.
Some USB WiFi adapters require considerable electrical current and push the capabilities of the power available via USB port. One example is devices that use the Realtek 8814au chipset. Using a powered multiport USB extension can be a good idea in cases like this.
How to disable onboard WiFi on Raspberry Pi 3B, 3B+, 3A+, 4B and Zero W.
Add the following line to /boot/config.txt
How to forget a saved WiFi network on a Raspberry Pi
Delete the relevant WiFi network block (including the ‘network=’ and opening/closing braces.
Press ctrl-x followed by ‘y’ and enter to save the file.
About
Linux Driver for USB WiFi Adapters that are based on the RTL8811AU and RTL8821AU Chipsets
Источник
Realtek wifi drivers linux
REALTEK RTL88x2B USB Linux Driver
Current Driver Version: 5.8.7.4
Support Kernel: 2.6.24
5.14 (with unofficial patches)
Official release note please check ReleaseNotes.pdf
Note: if you believe your device is RTL8812BU or RTL8822BU but after loaded the module no NIC shows up, the device ID maybe not in the driver whitelist. In this case please submit a new issue with lsusb result, and your device name, brand, website, etc.
- ASUS AC1300 USB-AC55 B1
- ASUS U2
- ASUS USB-AC58
- Dlink — DWA-181
- Dlink — DWA-182
- Edimax EW-7822ULC
- Edimax EW-7822UTC
- Edimax EW-7822UAD
- NetGear A6150
- TP-Link Archer T3U
- TP-Link Archer T3U Plus
- TP-Link Archer T4U V3
- TP-Link Archer T4U PLus
- TRENDnet TEW-808UBM
How to use this kernel module
- Ensure you have C compiler & toolchains, e.g. build-essential for Debian/Ubuntu, base-devel for Arch, etc.
- Make sure you have installed the corresponding kernel headers
- All commands need to be run in the driver directory
- You need rebuild the kernel module everytime you update/change the kernel if you are not using DKMS
- Make sure you cleaned old build files before builds new one
Building module for current running kernel
Building module for other kernels
Manual DKMS installation
You can try use modprobe 88x2bu rtw_switch_usb_mode=1 to force the adapter run under USB 3.0. But if your adapter/port/motherboard not support it, the driver will be in restart loop. Remove the parameter and reload the driver to restore. Alternatively, modprobe 88x2bu rtw_switch_usb_mode=2 let’s it run as USB 2 device.
Notice: If you had already loaded the moduel, use modprobe -r 88x2bu to unload it first.
If you want to force a given mode permanently (even when switching the adapter across devices), create the file /etc/modprobe.d/99-RTL88x2BU.conf with the following content: options 88x2bu rtw_switch_usb_mode=1
Set debug log use echo 5 > /proc/net/rtl88x2bu/log_level or modprobe 88x2bu rtw_drv_log_level=5
Источник
