martivo

Seems this issue has been fixed, I am able to use the new kernel now with video playback. I did not do anything different...just update/upgrade.

curl https://raw.githubusercontent.com/orangepi-xunlong/linux-orangepi/orange-pi-5.10-rk3588/arch/arm64/boot/dts/rockchip/overlay/rk3588-i2c5-m3.dts -O rk3588-i2c5-m3.dts armbian-add-overlay rk3588-i2c5-m3.dts reboot  
So this is how you can make the fix permanently.
If you use different Kernel or arch then it might be a bit different location in the github repo.
 
# uname -a Linux opi 5.10.160-rockchip-rk3588 #1 SMP Fri May 26 08:01:48 UTC 2023 aarch64 aarch64 aarch64 GNU/Linux  

I would guess too that you need to erase SPI.

For me this video was very helpful 
 
It also covers how to erase SPI flash and initialize it again. 

Or you can read the orange pi 5 manual https://drive.google.com/drive/folders/1Bre2q0bGgXQuQlYaYDMvwstpvtHLmcgX  it covered also the MaskROM recovery steps in case you cant boot from any media anymore.

With AC3 I am able to send 5.1 audio throught the TV! Also content from the TV is played properly and ARC works. No need to change any audio sources.
I have created an ansible role that will setup DTS and AC3 ALSA devices on Orange PI 5 so any audio that you play is sent with compression over HDMI/DP. Pulseaudio will show them as sinks.
So if anyone else wan'ts to use an older receiver without 4K resolution support but has a new 4K tv then either of these could solve that issue. Both of these methods also work with a HDMI audio extractor.