sudo add-apt-repository ppa:liujianfeng1994/rockchip-multimedia
[sudo] contraseña para eduardo:
Repository: 'deb https://ppa.launchpadcontent.net/liujianfeng1994/rockchip-multimedia/ubuntu/ bookworm main'
Description:
This ppa provides a package rockchip-multimedia-config to config your system ready for multimedia acceleration.
sudo apt install rockchip-multimedia-config
Then you're good to go.
More info: https://launchpad.net/~liujianfeng1994/+archive/ubuntu/rockchip-multimedia
Adding repository.
Press [ENTER] to continue or Ctrl-c to cancel.
Adding deb entry to /etc/apt/sources.list.d/liujianfeng1994-ubuntu-rockchip-multimedia-bookworm.list
Adding disabled deb-src entry to /etc/apt/sources.list.d/liujianfeng1994-ubuntu-rockchip-multimedia-bookworm.list
Adding key to /etc/apt/trusted.gpg.d/liujianfeng1994-ubuntu-rockchip-multimedia.gpg with fingerprint 0B2F0747E3BD546820A639B68065BE1FC67AABDE
Obj:1 http://deb.debian.org/debian bookworm InRelease
Des:3 http://deb.debian.org/debian bookworm-updates InRelease [52.1 kB]        
Des:5 http://security.debian.org bookworm-security InRelease [48.0 kB]         
Des:6 http://deb.debian.org/debian bookworm-backports InRelease [56.5 kB]      
Obj:2 https://cli.github.com/packages stable InRelease                         
Ign:8 https://ppa.launchpadcontent.net/liujianfeng1994/panfork-mesa/ubuntu bookworm InRelease
Obj:7 http://armbian.chi.auroradev.org/apt bookworm InRelease                  
Des:4 https://paulcarroty.gitlab.io/vscodium-deb-rpm-repo/debs vscodium InRelease [3 843 B]
Des:9 http://deb.debian.org/debian bookworm-backports/main arm64 Packages.diff/Index [63.3 kB]
Ign:10 https://ppa.launchpadcontent.net/liujianfeng1994/rockchip-multimedia/ubuntu bookworm InRelease
Des:11 http://deb.debian.org/debian bookworm-backports/main arm64 Contents (deb).diff/Index [48.8 kB]
Des:12 http://deb.debian.org/debian bookworm-backports/main all Contents (deb).diff/Index [63.6 kB]
Err:13 https://ppa.launchpadcontent.net/liujianfeng1994/panfork-mesa/ubuntu bookworm Release
  404  Not Found [IP: 185.125.190.52 443]
Des:14 http://security.debian.org bookworm-security/main arm64 Packages [92.9 kB]
Des:15 http://deb.debian.org/debian bookworm-backports/main arm64 Packages T-2023-11-02-0803.41-F-2023-11-02-0203.47.pdiff [16.4 kB]
Des:15 http://deb.debian.org/debian bookworm-backports/main arm64 Packages T-2023-11-02-0803.41-F-2023-11-02-0203.47.pdiff [16.4 kB]
Err:16 https://ppa.launchpadcontent.net/liujianfeng1994/rockchip-multimedia/ubuntu bookworm Release
  404  Not Found [IP: 185.125.190.52 443]
Des:17 https://paulcarroty.gitlab.io/vscodium-deb-rpm-repo/debs vscodium/main arm64 Packages [1 039 B]
Des:18 http://deb.debian.org/debian bookworm-backports/main arm64 Contents (deb) T-2023-11-02-0803.41-F-2023-11-02-0803.41.pdiff [85.2 kB]
Des:18 http://deb.debian.org/debian bookworm-backports/main arm64 Contents (deb) T-2023-11-02-0803.41-F-2023-11-02-0803.41.pdiff [85.2 kB]
Des:19 http://deb.debian.org/debian bookworm-backports/main all Contents (deb) T-2023-11-02-0203.47-F-2023-11-02-0203.47.pdiff [27.2 kB]
Des:19 http://deb.debian.org/debian bookworm-backports/main all Contents (deb) T-2023-11-02-0203.47-F-2023-11-02-0203.47.pdiff [27.2 kB]
Leyendo lista de paquetes... Hecho   
E: El repositorio «https://ppa.launchpadcontent.net/liujianfeng1994/panfork-mesa/ubuntu bookworm Release» no tiene un fichero de Publicación.
N: No se puede actualizar de un repositorio como este de forma segura y por tanto está deshabilitado por omisión.
N: Vea la página de manual apt-secure(8) para los detalles sobre la creación de repositorios y la configuración de usuarios.
E: El repositorio «https://ppa.launchpadcontent.net/liujianfeng1994/rockchip-multimedia/ubuntu bookworm Release» no tiene un fichero de Publicación.
N: No se puede actualizar de un repositorio como este de forma segura y por tanto está deshabilitado por omisión.
N: Vea la página de manual apt-secure(8) para los detalles sobre la creación de repositorios y la configuración de usuarios.
eduardo@orangepi5-plus:~$

neofetch
                                 eduardo@orangepi5-plus
                                 ----------------------
      █ █ █ █ █ █ █ █ █ █ █      OS: Armbian (23.8.2) aarch64
     ███████████████████████     Host: Orange Pi 5 Plus
   ▄▄██                   ██▄▄   Kernel: 5.10.160-legacy-rk35xx
   ▄▄██    ███████████    ██▄▄   Uptime: 4 hours, 17 mins
   ▄▄██   ██         ██   ██▄▄   Packages: 1521 (dpkg)
   ▄▄██   ██         ██   ██▄▄   Shell: bash 5.2.15
   ▄▄██   ██         ██   ██▄▄   Resolution: 1920x1080
   ▄▄██   █████████████   ██▄▄   DE: Cinnamon 5.6.8
   ▄▄██   ██         ██   ██▄▄   WM: Mutter (Muffin)
   ▄▄██   ██         ██   ██▄▄   WM Theme: cinnamon (Numix)
   ▄▄██   ██         ██   ██▄▄   Theme: Numix [GTK2/3]
   ▄▄██                   ██▄▄   Icons: Numix [GTK2/3]
     ███████████████████████     Terminal: gnome-terminal
      █ █ █ █ █ █ █ █ █ █ █      CPU: (8) @ 1.800GHz
                                 Memory: 4884MiB / 15718MiB

                                                         
                                                         

I dont see the gpu in the neofetch output

I tried a lot of things, but could not activate the gpu. Installed Joshua Reik Ubuntu and now everything seems to work fine. I would prefer to use armbian, but have to stay at ubuntu for now.

Use Gnome. I think it doesn't work with Cinnamon.

He needed to use Jammy and not bookworm. The desktop choice has nothing to do with it.
The AmazingFate repo only works on Jammy. That is what JashuaRiek is using too.