Maybe related to https://github.com/raspberrypi/linux/issues/4112

There it seems Kernel 5.10 is the problem, downgrading to 5.4 seems to solve the issue.

No idea what Kernel is actually used for the current 8.1 images tho.

Hi there,

longtime happy user of Recalbox here.
I use the included Kodi media player quite a bit and noticed that apparently since 8.x.x versions there is no more HW acceleration for videos enabled.

I just updated my RPi 4b+ to 8.1, at least h265 is unwatchable and completely sluggish. h264 seems to work but i fear this is decoded purely in software.

My RPi 3b+ is still on 8.0.2 and has the same issue. Of course no h265 HW support on the 3b+, but h264 is sluggish and unwatchable.

Hope this isssue can be fixed, especially since it used to work on older versions of Recalbox (pre-8.x.x that is)