NEW FIX FOR THE ISSUE !!!!

[Krishnakant-Khollam]

sudo apt update && sudo apt install gcc-14 bc pahole

wget https://kali.download/kali/pool/main/l/linux/linux-image-6.12.38%2Bkali-amd64_6.12.38-1kali1_amd64.deb
wget https://kali.download/kali/pool/main/l/linux/linux-headers-6.12.38%2Bkali-common_6.12.38-1kali1_all.deb
wget https://kali.download/kali/pool/main/l/linux/linux-headers-6.12.38%2Bkali-amd64_6.12.38-1kali1_amd64.deb
wget https://kali.download/kali/pool/main/l/linux/linux-kbuild-6.12.38%2Bkali_6.12.38-1kali1_amd64.deb

sudo dpkg -i
linux-image-6.12.38+kali-amd64_6.12.38-1kali1_amd64.deb
linux-headers-6.12.38+kali-common_6.12.38-1kali1_all.deb
linux-headers-6.12.38+kali-amd64_6.12.38-1kali1_amd64.deb
linux-kbuild-6.12.38+kali_6.12.38-1kali1_amd64.deb

sudo apt -f install
sudo update-initramfs -c -k 6.12.38+kali-amd64
sudo update-grub

HOLD SYSTEM - sudo apt-mark hold linux-image-amd64 linux-image-6.12.38+kali-amd64 linux-headers-6.12.38+kali-amd64 linux-headers-6.12.38+kali-common linux-kbuild-6.12.38+kali
RELEASE SYSTEM - sudo apt-mark unhold linux-image-amd64 linux-image-6.12.38+kali-amd64 linux-headers-6.12.38+kali-amd64 linux-headers-6.12.38+kali-common linux-kbuild-6.12.38+kali

REBOOT

dpkg -l | grep linux-image

sudo apt purge linux-image-amd64 linux-image-6.18.5+kali-amd64

sudo apt purge
linux-image-6.18.5+kali-amd64
linux-headers-6.18.5+kali-amd64
linux-headers-6.18.5+kali-common
linux-kbuild-6.18.5+kali
linux-image-6.16.8+kali-amd64
linux-headers-6.16.8+kali-amd64
linux-headers-6.16.8+kali-common
linux-kbuild-6.16.8+kali

sudo apt autoremove --purge
sudo apt autoclean

ls -lh /boot | grep 6.12

sudo apt update && sudo apt install -y libelf-dev linux-headers-$(uname -r) build-essential dkms pahole bc
git clone https://github.com/morrownr/8821au-20210708.git

[morrownr]

Hi @Krishnakant-Khollam

Why would you purge kernels that have good in-kernel support just to install this driver?

[Krishnakant-Khollam]

Hi @Krishnakant-Khollam

Why would you purge kernels that have good in-kernel support just to install this driver?

The issue is , this driver doesn;t work with any kernel released after 6.12.38 so I had to install kernel versioin 6.12.38 and remve all other version atleast in the case of kali linux

[morrownr]

The version of the driver in kernels 6.16 and 6.18 is much better than this driver. I helped with the new driver. Did you test the driver that is in kernel 6.14+ ?

I assume you are using Kali because you are using monitor mode and the in-kernel driver is much better at monitor mode.

[Krishnakant-Khollam]

The version of the driver in kernels 6.16 and 6.18 is much better than this driver. I helped with the new driver. Did you test the driver that is in kernel 6.14+ ?

I assume you are using Kali because you are using monitor mode and the in-kernel driver is much better at monitor mode.

I am unable to run my rtl8821au by default in kali linux 6.18 can you provide the commands to run it without any issues

[morrownr]

I am unable to run my rtl8821au by default in kali linux 6.18 can you provide the commands to run it without any issues

Modern mac80211 wireless drivers do not require any commands. You plug the adapter in and off you go.

If you installed the driver here without checking if the in-kernel driver was working then the driver here would have blacklisted the in-kernel driver. How about you remove this driver and reinstall the 6.18 kernel and I will help you make sure things are working.

sudo sh remove-driver.sh

As an alternative to reloading kernel 6.18, you can install the new driver from the repo we used for development, but that does requirement compilation:

https://github.com/lwfinger/rtw88

...and yes, remember to remove the driver in this repo as shown above.