I have been successfully using the Radxa Zero 3W for some time as a tiny portable media server based around DietPi & Jellyfin. The hardware accelerated encoding made this surprisingly useful.
I was rebuilding it to text Trixie and noticed the WiFi issue covered here: Radxa ZERO 3W - Fails to connect to WiFi after v9.20 · Issue #7867 · MichaIng/DietPi · GitHub. Once that got resolved (Thank you @MichaIng!), I was moving forward with the rebuild this morning and noticed the hardware acceleration devices don’t exist (mpp_service & rga). Pretty sure this is just a side effect of switching off the vendor kernel and not really something that would be considered a bug.
I am wondering if hardware acceleration support may return at some point? Also is it possible for someone with limited linux skills to swap back to the vendor kernel?
I did find some information searching the forms about the process. My attempt redounded to:
apt install linux-dtb-vendor-rk35xx linux-image-vendor-rk35xx linux-u-boot-radxa-zero3-vendor
Followed by using dietpi-config to flash the bootloader. It resulted in a system that would not boot. I did make one more attempt without installing linux-u-boot-radxa-zero3-vendor. This also failed to boot.
Any help or guidance would be appreciated.