I did it under Linux Kernel. 5.9.16-1, I installed the 519 headers and dkm and after the rtl88xxau-aircrack-dkms-git packages. There were no error messages but the modem was not recognized.
After several attempts I did a clean new Manjaro installation and before I start over again, I tried to get some advice here first.
Thanks for you infos.
So you would rather recommend using AUR (en) - rtl8814au-aircrack-dkms-git instead the rtl8812au?
And in any case I first need to install inux510-headers and dkms, right?
Thanks for your help, I am not a Linux expert, just a user trying to get his issues solved…