Do you know which build of LibreELEC it was you had running for 16 days? Had you changed the governor to achieve that or was that using default settings?
Is the gstreamer-rockchip plugin in ayufans repo? I built that under Armbian but I just got a black window when trying to play videos but I did have to comment a line out to get it to build which could've caused problems.
EDIT
I should mention that I was successful in getting hw accelerated playback working under mpv under armbian by loosely following those instructions I linked in my last post, but just like under ayufans distro it only works at 1080 and its very unstable. I have read the gstreamer-rockchip plugin allows for hw accelerated 4K playback either in a window or fullscreen.
EDIT 2
I should clarify that. I am able to play hw accelerated 4K h264 videos under armbian mpv but only on a 1080 display / output res. If I try to play 4K h264 files on my 4K display @ 4K (not 1080), I get very jerky playback with lots of horizontal green lines, just as happen under ayufans kernel / mpv package.
Is the gstreamer-rockchip plugin in ayufans repo? I built that under Armbian but I just got a black window when trying to play videos but I did have to comment a line out to get it to build which could've caused problems.
EDIT
I should mention that I was successful in getting hw accelerated playback working under mpv under armbian by loosely following those instructions I linked in my last post, but just like under ayufans distro it only works at 1080 and its very unstable. I have read the gstreamer-rockchip plugin allows for hw accelerated 4K playback either in a window or fullscreen.
EDIT 2
I should clarify that. I am able to play hw accelerated 4K h264 videos under armbian mpv but only on a 1080 display / output res. If I try to play 4K h264 files on my 4K display @ 4K (not 1080), I get very jerky playback with lots of horizontal green lines, just as happen under ayufans kernel / mpv package.