Reviving this. I (and someone else I know) am also having this issue with FEL playback (of mkv files in my case) on the Homatics R 4k Plus (running A10, but have also had this in all previous builds). Basically on seek, there’s a 3-4 second black screen, and then microstutters every 10 seconds or so, so something is probably out of sync. Restarting playback, or seeking forward sometimes fixes it. It happens with some files more than others, and it’s not clear what exactly triggers it, and I’ve spent a lot of time going through settings and local/remote playback to tweak it. The am6b+ with the same settings and same files does not have this issue at all.
I have concluded that the homatics soc isn’t really up to snuff for FEL playback and am going to stick with the ugoos.
On my 8010 running ne I will sometimes experience sync issues only with large files like remuxes. Pausing or ffwd/rewind will fix it. No black screen or microstutters. Will do a clean install soon with ng nightly and dovi file. If I can get it to work that is.
Right. I was also only referring to UHD DV P7 remuxes with FEL and with >50mbps bitrate. It doesn’t seem to necessarily be related to bitrate in my case though.
I have followed the installation guidelines, and this is the second box I set up (the am6b+ did not give me any issues).
I bought this box to run coreelec, mainly to watch DV local media, both full blu- ray rips (with and without FEL) and DV streaming media. As most of the new streaming media is in CMv4.0, will the Dune Homatics box be able to play it in its full extent, or will it convert the file on-the-fly to CMv2.9?
Sorry maybe I’m missing something but are you sure your file is 1080p and not 1080i? I was having the exact same issue (and solution) with some interlaced content from a BBC show. I believe this is a known issue with the homatics
i guess 1080i probably as i watched the video (Adele live at Royal Albert) using debrid stream .if i remember in the previous Ce i think there was an option to disable deinterlacing but on the latest omega ng the function greyed out.
i heard Ce-ne omega fix this problems but i need the dv fel function on Ce-ng.
Got ng working with dovi file. Did a full erase of the thumbdrive this time prior to flashing it. Used fedora usb writer for a change, maybe that helped too.
Now I experience the same slightly av sync problem as before when playing high bitrate remuxes. Pausing the video will fix it for a moment. When paused you can see the frame that is lagging “pop back into place”.
How do we solve this? Process info shows healthy cpu temps, low cpu usage, plenty of free ram and video buffer is always above 95%. I’ve applied the large cache/buffer tweak and would like to overclock also if possible. Add another 200/250Mhz to the gpu with a little more voltage.
How I can I tell for sure if my TV supports CM4.0?
I have the DV FEL TEST ST DL P7 CMV4.0 4000nits V3.mkv file, with the red background.
Playing it on my Linux desktop with MPV I obviously only get the red background :
At 20s the top text is “Level 2 * this will work only on CMV2.9 hardware”
At 26s the top text is “Level 3 * this will work only on CMV4.0 hardware”
At 30s the top text is “Level 1 only”
At 35s the top text is “Level 8 * this will work only on CMV4.0 hardware”
At 40s the top text is “Level 5 * this will work only on TVs internal player, you should not be able to see this text or there will be a mask over it”
Playing it on CE-NE official release, I get 1, 2, 3, 4 and 5 just as MPV on Linux
Playing it on CE-NG nightly 20241109 I get the red background with “This device can decode FEL” as expected and then 1 and it stays there until the end of the video
So I guess my TV is CMv2.9 only. Is this sufficient to know for sure or is there any other test to be made?
In this specific box? Im running coreelec 21.1-ng, with the dovi.ko file, and when I run the FEL TEST ST DL P7 CMV4.0 4000nits V3.mp4 file, It says I can decode FEL but it is stuck on level 2, not showing the text that sould appear if the dune Homatics played CMv4.0 files. This is similar to what the user above me described.
The box is connected directly to my LG C2, which can display CMv4.0 content correctly.
Is there any other file I can test? I feel that the dune homatics does not in fact play CMv4.0…
I got this device yesterday and today got it running on CoreELEC-Amlogic-ng.arm-21.1.1-Omega_nightly_20241128-Generic with correct dovi.ko file. I tested with BL_EL.mkv that I see the lady in the background and FEL TEST ST DL P7 CMV4.0 4000nits V3.mp4 informs me that FEL is supported.
However, when I tested a demo 4k rip with FEL I got black screen followed by stuttering and video/audio is out of sync after I used skip.
Black screen during skipping takes +5 seconds and even the GUI is not visible until video starts playback again. Sometimes sound can be heard for a bit before video and GUI is again visible.
Stuttering is visible every couple seconds and I didn’t saw stuttering until I used skip bar to get past the intro.
Audio/Video out of sync appeared that audio was delayed for maybe a second behind the video.
Good thing was that this doesn’t always happen, more times than not the skip happens quite fast, even without black screen and stuttering and audio delay doesn’t happen. When it does, using pause or skipping again can fix the issue. Closing and resuming file is a sure way to get it working.
Still I think it’s not great that it happens so I took logs. Log was too big, I had to remove part from the end but shouldn’t matter. kodi.log (9.8 MB)
Physical setup:
NAS - 1GbE ethernet LAN - Homatics 4K Plus - Denon AVR-X3800H - LG CX Oled TV
