Good day!
I connected the new Mercusys MA20N Wi-Fi Adapter, but it is not available for use.
Operating System: Manjaro Linux
KDE Plasma Version: 6.0.5
KDE Frameworks Version: 6.5.0
Qt Version: 6.7.2
Kernel Version: 6.1.106-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 2 × AMD A6-9500E RADEON R5, 6 COMPUTE CORES 2C+4G
Memory: 15.1 ГиБ of RAM
Graphics Processor: AMD Radeon R5 Graphics
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: A320M-H
The system defines as:
Realtek 8812AU/8821AU 802.11ac WLAN Adapter [USB Wireless Dual-Band Adapter 2.4/5Ghz])
Completed the seven steps of the following instructions
https://github.com/morrownr/8821cu-20210916
sudo pacman -Syu
sudo pacman -S --noconfirm linux-headers dkms git bc iw
mkdir -p ~/src
cd ~/src
cd ~/src/8821cu-20210916
cat /proc/version
Linux version 6.1.106-1-MANJARO (builduser@fv-az1211-232)
(gcc (GCC) 14.2.1 20240805, GNU ld (GNU Binutils) 2.43.0)
#1 SMP PREEMPT_DYNAMIC Mon Aug 19 10:07:05 UTC 2024
gcc --version
gcc (GCC) 14.2.1 20240805
Copyright (C) 2024 Free Software Foundation, Inc.
sudo ./install-driver.sh
Your kernel header files aren't properly installed.
Please consult your distro documentation or user support forums.
Once the header files are properly installed, please run "sudo ./install-driver.sh"
Then I found the next topic and followed it
pamac search 8821cu
rtl8821cu-morrownr-dkms-git 5.12.0.4.120.7d16a68-1 AUR
rtl8821cu chipset driver (morrownr fork)
rtl8821cu-git 5.12.0.34.76605e4-1 AUR
Linux Driver for USB WiFi Adapters that use the RTL8811CU, RTL8821CU and RTL8731AU Chipsets
rtl8821cu-dkms-git 5.12.0.1785b39398-1 AUR
rtl8821cu chipset driver
pamac install $(pamac list --quiet --installed | grep “^linux[0-9][-rt]$” | awk ‘{print $1"-headers"}’ ORS=’ ')
pamac build rtl8821cu-dkms-git
cd ~/src/8821cu-20210916
sudo ./install-driver.sh
: ---------------------------
: install-driver.sh v20231115
: x86_64 (kernel architecture)
: x86_64 (architecture to send to gcc)
: 2/2 (in-use/total processing units)
: 15807872 (total system memory)
: 6.1.106-1-MANJARO (kernel version)
: gcc (version of gcc used to compile the kernel)
: gcc (GCC) 14.2.1 20240805
: dkms-3.0.12
: mokutil not installed
: ---------------------------
Checking for previously installed drivers...
--> rtl8821cu 5.12.0.1881597dfe 6.1.106-1-MANJARO
Module rtl8821cu-5.12.0.1881597dfe for kernel 6.1.106-1-MANJARO (x86_64).
Before uninstall, this module version was ACTIVE on this kernel.
8821cu.ko.zst:
- Uninstallation
- Deleting from: /usr/lib/modules/6.1.106-1-MANJARO/updates/dkms/
- Original module
- No original module was found for this module on this kernel.
- Use the dkms install command to reinstall any previous module version.
depmod....
Deleting module rtl8821cu-5.12.0.1881597dfe completely from the DKMS tree.
Finished checking for and removing previously installed drivers.
: ---------------------------
Starting installation.
Installing 8821cu.conf to /etc/modprobe.d
The dkms installation routines are in use.
Copying source files to /usr/src/rtl8821cu-5.12.0.4
Creating symlink /var/lib/dkms/rtl8821cu/5.12.0.4/source -> /usr/src/rtl8821cu-5.12.0.4
The driver was added to dkms successfully.
: ---------------------------
Sign command: /usr/lib/modules/6.1.106-1-MANJARO/build/scripts/sign-file
Signing key: /var/lib/dkms/mok.key
Public certificate (MOK): /var/lib/dkms/mok.pub
Building module:
Cleaning build area...
kernelver=6.1.106-1-MANJARO ./dkms-make.sh....................................................................
Signing module /var/lib/dkms/rtl8821cu/5.12.0.4/build/8821cu.ko
Cleaning build area...
The driver was built by dkms successfully.
: ---------------------------
8821cu.ko.zst:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /usr/lib/modules/6.1.106-1-MANJARO/updates/dkms/
depmod...
The driver was installed by dkms successfully.
: ---------------------------
Info: Update this driver with the following commands as needed:
$ git pull
$ sudo sh install-driver.sh
Note: Updates to this driver SHOULD be performed before distro
upgrades such as Ubuntu 23.10 to 24.04.
Note: Updates can be performed as often as you like. It is
recommended to update at least every 2 months.
Note: Work on this driver, like the Linux kernel, is continuous.
Enjoy!
Do you want to edit the driver options file now? (recommended) [Y/n] y
# /etc/modprobe.d/8821cu.conf
#
# Purpose: Allow easy access to specific driver options.
#
# Note: pull-request: wireless-next-2022-12-12
# wireless-next patches for v6.2
# wifi: rtw88: Add rtw8821cu chipset support
#
# The following line blacklists (deactivates) the above in-kernel driver.
blacklist rtw88_8821cu
#
# Edit the following line to change, add or delete options:
options 8821cu rtw_led_ctrl=1
#
# Note: The above `options` line is a good default for managed mode. Below is
# an example for AP mode. Modify as required after reading the documentation:
#options 8821cu rtw_drv_log_level=1 rtw_led_ctrl=1 rtw_vht_enable=2 rtw_power_mgnt=1 rtw_beamform_cap=1 rtw_dfs_region_domain=1
#
# After editing is complete, save this file (if using nano: Ctrl + x, y, Enter)
# and reboot to activate the changes.
#
# Important: Some adapters based on the rtl8821cu chipset may require the
# `rtw_RFE_type` option to be set. If wifi or bluetooth does not work
# after driver installation, see the appropriate section in the below
# documentation. This issue has not been seen on wifi only adapters.
#
# Documentation:
#
# -----
I changed
blacklist rtw88_8821cu to #blacklist rtw88_8821cu
options 8821cu rtw_led_ctrl=1 to #options 8821cu rtw_led_ctrl=1
#options 8821cu rtw_drv_log_level=1 rtw_led_ctrl=1 rtw_vht_enable=2 rtw_power_mgnt=1 rtw_beamform_cap=1 rtw_dfs_region_domain=1
to
options 8821cu rtw_drv_log_level=1 rtw_led_ctrl=1 rtw_vht_enable=2 rtw_power_mgnt=1 rtw_beamform_cap=1 rtw_dfs_region_domain=1
sudo reboot
sudo pacman -Syu dkms base-devel --needed
sudo pacman -S $(ls /boot | awk -F “-” ‘/^linux/ { print $1"-headers" }’)
