Mini PC AMD Ryzen 7 5825U Acemagician AM06PRO

I purchased this Mini PC to do video editing using the Olive Video Editor program. My previous Mini PC based on the Intel N95 was not able to playback 2.7K/60 fps videos, it only does 1080/30 fps. The AMD Ryzen 7 5825U CPU is instead capable of previewing the clips applying cropping on the fly on Olive, which is what I actually need.

GNU/Linux kernel 6.1.0 shipped with Debian 12 Bookworm does not support the RTL8852BE WiFi adapter. You can download kernel 6.12.22 from bookworm backports and install it manually using dpkg -i. Download also the backported firmwares:

• linux-image-6.12.22+bpo-amd64_6.12.22-1~bpo12+1_amd64.deb
• firmware-amd-graphics_20241210-1~bpo12+1_all.deb
• firmware-realtek_20241210-1~bpo12+1_all.deb

I had a problem getting audio to work on the HDMI port: at bootstrap the PC was totally mute; no audio was routed to the HDMI display.

First of all I manually checked all the following:

• From alsamixer: unmute the S/PDIF output of the default:1 HD-Audio Generic sound card.
• From the PulseAdio Plugin on the XFCE panel: check that the master volume control si associated to the Renoir Radeon High Definition Audio Controller HDMI / DisplayPort 1 Output, enable the output and set a sensible volume level.
• Open the XFCE mixer app pavucontrol:
  • Into the Output Devices tab: check that the HDMI / DisplayPort 1 Output is marked as plugged in, verify it is unmuted and click the Set as fallback button.
  • Start an audio player (e.g. the audacious program to play some mp3 files); into the Playback tab of pavucontrol check that the app is using the Renoir Radeon High Definition Audio Controller HDMI / DisplayPort 1 Output port to route the sound.

Now you should ear the sound coming from the HDMI display (obviously your device must have the speakers!).

There is a problem with the alsa-restore.service which should be responsible for saving the ALSA controls status on shutdown and restore them on bootstrap (executing the commands alsactl store and alsactl restore respectively). Till now I was not able to make the restore working automatically: it seems that the S/PDIF output is muted just before the save, so at bootstrap the alsactl will always restore a muted audio system.