Realtek Usb Fe Family Controller Wont Get Past 60mb/sec

How to install the Realtek RTL8821CE commuter

Encounter besides: How to install Wi-Fi commuter in Linux if the calculator is offline

Usually, when nosotros install a Linux distribution on a laptop, oft Wi-Fi support is nowadays in whole or in role for almost models. The drivers are integrated into the Linux kernel and as a result, everything "just works" out of the box. But problems start if at that place is no driver for your Wi-Fi. You need to find it and install it manually.

For example, the owner of HP CM-0078AU notebooks may encounter such a problem.

If yous have a Wi-Fi adapter based on the Realtek RTL8821CE chipset, then Linux does not have a driver for it by default. As a result, the Bone does not see the device, and there is no Wi-Fi icon at all in the console next to the clock.

To fix this problem, just install the required commuter.

This driver works on Linux kernels > 4.14 (all modernistic distributions see this requirement). This driver has been tested on Debian, Ubuntu, Linux Mint, Arch Linux, Gentoo and should work on all derivative distributions.

This driver tin can be installed using DKMS. This is a system that automatically recompiles and installs kernel modules when a new kernel is installed every bit a result of an upgrade. To use DKMS, install the dkms package.

To check which integrated Wi-Fi adapter y'all have, run the command:

lspci | grep Network

If your output contains the line RTL8821CE, and then this educational activity will help you lot:

Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter

Offline installation of Realtek RTL8821CE

If the computer on which you want to install the driver does not accept an Internet connection, then you tin can download the installation file from the Ubuntu repositories, transfer information technology to a USB flash drive to a computer without the Cyberspace, and endeavour to install it manually. This method may non piece of work for the reason that the driver installation requires dependencies (for case, kernel headers) that could be installed if the computer had an Internet connection, simply if the estimator is offline, then you have to promise that all the necessary files are present by default.

Download the commuter installation file:

wget http://archive.ubuntu.com/ubuntu/pool/universe/r/rtl8821ce/rtl8821ce-dkms_5.five.2.1-0ubuntu4_all.deb

If the link to the driver stopped working, then go to the page to find the actual link: https://pkgs.org/search/?q=rtl8821ce-dkms

Transfer the downloaded file to the calculator where y'all want to install it, get to the directory with the driver and start the installation with the following control:

sudo apt install ./rtl8821ce-dkms_5.v.2.one-0ubuntu4_all.deb

How to install Realtek RTL8821CE Driver on Ubuntu 21.04 and Later on

The driver has been placed in the standard repository, so you merely need to run the command:

sudo apt install rtl8821ce-dkms

How to install Realtek RTL8821CE Driver on Ubuntu 20.04

Starting with Ubuntu 20.04, this driver is available in Additional Drivers (Software & Updates). Open the additional software settings and check the box "Using DKMS source for the Realtek 8821C…" (utilize DKMS source for the Realtek 8821C) and then reboot. Afterward a reboot, everything volition work.

How to install Realtek RTL8821CE commuter on Debian, Ubuntu, Kali Linux, Linux Mint and their derivatives

Run the following commands:

sudo apt install bc module-assistant build-essential dkms git clone https://github.com/tomaspinho/rtl8821ce cd rtl8821ce sudo m-a set up sudo ./dkms-install.sh

Then restart your figurer and everything should work.

How to install Realtek RTL8821CE driver on Arch Linux, BlackArch and their derivatives

Install pikaur equally shown in the "Automated installation and update of AUR packages" article, then but run the command:

pikaur -S rtl8821ce-dkms-git

Reboot your computer.

How to Install Realtek RTL8821CE Commuter in Gentoo

Run the commands as root:

layman -a trolltoo emerge --ask net-wireless/rtl8821ce-commuter

Removing the driver

Open a terminal and use git clone to clone the repository to your local bulldoze:

git clone https://github.com/tomaspinho/rtl8821ce.git cd rtl8821ce

Then run the uninstall script:

sudo ./dkms-remove.sh

Driver update

Remove the driver:

sudo ./dkms-remove.sh

Brand sure you have the latest version of the repository on disk:

git pull

Remove any stale binaries:

make make clean

Reinstall:

sudo ./dkms-install.sh

Possible problems

Secure Boot

If your system uses secure boot, disable it in the BIOS settings, otherwise the kernel will not have custom modules.

PCIe Actuate Land Power Management

Your distribution may transport with PCIe Activate State Power Management enabled by default. It may conflict with this commuter. To disable:

sudo $EDITOR /etc/default/grub

Add pci=noaer to the end of GRUB_CMDLINE_LINUX_DEFAULT. The line should look something like this:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pci=noaer"

And then update your Chow config:

sudo update-chow

Reboot.

Lenovo Yoga Laptops

Some newer Yoga laptops (like the Yoga 530) come with rtl8821ce equally a Wi-Fi/Bluetooth chip. Merely the ideapad-laptop module that may be included with your distribution may conflict with this driver. To plough it off:

sudo modprobe -r ideapad_laptop

BlueTooth non working

This could exist because the kernel is loading the incorrect firmware file for this card. Accept a look at the wahsot manual at https://github.com/tomaspinho/rtl8821ce/issues/xix#issuecomment-452196840 to see if information technology tin can gear up your consequence.

See too:

Linux Wi-Fi Cheat Sail: Tips and Troubleshooting
Iii ways to gear up wireless interface to Monitor way and Managed mode

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Source: https://miloserdov.org/?p=5930