Why are you afraid to experiment? Learning by doing mistakes is the best way 
Anyway, you need u-boot binary - if it doesn't exist, you can't make installation, that's why I put that check there. If fresh image doesn't help, then it's possible that build server makes images differently than me.
At one point you probably updated your installation with some test or universal update, right? Anyway, download fresh image, burn it on SD card and run install2emmc.
Well, it works for me. I'm not sure I will be able to fix anything.
I tested systemd.debug_shell=ttyS0 with latest master and it works. Maybe something changed in between.
Any ideas, how to resolve it?
No. It would take some time to debug it, but as you noticed, it's not priority for me.
After turning on the TV from stand-by mode HDMI-CEC does not work
i am using orange pi pc (H3) and the latest build LibreELEC-H3.arm-9.80-nightly-20210207-91cf0cd-orangepi-pc.img.gz
On old version that used LibreELEC-H3.arm-9.80-devel-20200426021229-38764c8-orangepi-pc.img everything was OK
This is huge range, a lot changed in between. Can you narrow it down to specific PR with bisecting? It's annoying to build so many images but I don't know better way to pinpoint the reason.
DTS, Dolby, Dolby+, DTS-HD MA, Atmos works only on 1080p 60HZ with micro cuts
In my case
For Orange pi plus one H6 , 4K 30Hz doesnt work! Canot sound on this resolution
This sounds like you're using old image. Can you check and report which version of the image you're using? What do you mean "doesn't work!"? No image at all or only no sound? I fixed plenty of H6 display related issues recently and all my monitors and TV work ok. There might be case where 4k@60 may not work perfectly, but 4k@30 work on both 4k capable devices I have.
HDR content seems warm / yellow colorized on TV . It's not the TV with the PC I see the colors well. IS possible to fix it?
HDR is fine, 10-bit output is not yet implemented. BTW, this is no passthrough related, so off topic.
Just built and run 9.2 release on AllWinner H3 board.
That is not something you want to use.
No. Maybe. There is power button too.
Those fixes were just merged in LE master so they should be in today's nightly images. tar are just updates - you put them in /storage/.update and reboot. You can actually do same thing with .img.gz files...
levitsky86 just install it All Repositories -> VideoPlayer InputStream -> InputStream FFmpeg Direct
So, if you disable wait on network in LE settings, you get normal boot speed... Not sure why that wait fails...
When that alsa config issue is solved, I'll open PR. I consider those cutoffs minor issue too.
Yeah, I think 60 Hz refresh rate works good for some reason and other don't (30 Hz seems to work too, but I didn't do thorough test). I have no idea why that is. It could be Kodi, kernel or something else. Sorry, but this will have to do for a while.
Can you try with 1080p 60 Hz mode? Note that with this image multi channel PCM reportedly doesn't work, it's no ideal either way... I watched yesterday about 15 min in 4k @ 60 and 15 min in 4k @ 30 and I didn't hear any cutoffs, but I did with older image.
Could you please explain to me how exactly I should trigger a shutdown that will stop the cores and hands over to the arisc?
Any kind of shutdown procedure should do that - selecting shutdown in Kodi power menu or even running "shutdown now" in ssh.
The shutdown dialog triggers a shutdown only to a halt with hdmi on, like old PCs with AT powersupplies.
Sounds like Arisc isn't running. Did you try fresh image? and power on via ARISC really doesn't really work for me on X2 too.
Picture quality is good but all 4K HDR are RGB 8bit, is there a way to force YCbCr 10 bit (4:2:2 or 4:4:4) ?
No, not yet. I had to fix HDMI bug first. 10-bit chain will take some time though, several drivers need to be improved.
EDIT: I think only 4:2:0 is possible, 4:4:4 definitively not, not sure about 4:2:2.
mike2002 I updated passthrough test updates. See other topic about it and don't forget to report your findings
I updated test images. H6 compatibility with various devices should be much improved. Please test.
