Great, thanks for the links! Meanwhile it works partially. The DT tweaking was not needed. I made a mistake by specifying the armbian extraargs. I added a second line to armbianEnv.txt but realized all args must be one line. I had to increase cma=256M (Yes, really, tested all lower values). Then it works, BUT ... Fun fact, will further investigate: Decoding with "-hwaccel drm" results in lower fps (about 6..8) whereas software decoder goes up to 10 😀 Decoding has been verified with htop. CPU only => 4 cores 100%. hwaccel one core about 20% which is likely th e yuv to rgb and scaling. Maybe this is still an issue caused by DT, at least when reading https://gregdavill.com/posts/allwinner-s3-videoencoders/ It specifies memory-region = <&cma_pool>; which is missing in my decompiled DT, also the referenced reserved-memory section. Maybe that's not needed if it's coded inside the driver or specified elswhere. T.

https://www.phoronix.com/news/Debian-13.0-Released Debian 13 trixie released https://www.debian.org/News/2025/20250809

I also confirmed that USB-C functionality is still not working on ODROID-M2 with Kernel 6.16 RC. I guess we would have to wait a little more for the working USB-C Port.

@ccs1664 thanks for the information, but i already have a image that works on my mxq pro 4k 5g allwinner h313, but im struggling how to boot in the sd card, and i cant enter recovery mode too (it showed an update screen but nithing updated) im glad you replied to my situation.

Depending on your location this might not be anything that can be fixed on Armbian side. If this happens on any mirror, the issue is either your setup or ISP blocking access.