The 20240327 nightly is completely broken: the BL_EL.mkv won’t even display video and the fel_test.mkv reads as 1080p. For me, 20240322 works the best as long as you don’t whitelist the resolutions.
Edit: Add Log
https://pastebin.com/raw/yKCDT4Xs
lol You testing with homemade dv files.
Can confirm FEL is very janky on 0327.
Upgraded from 0326 to find Saving Private Ryan won’t play at all. HDR and MEL seem ok still.
Even on 0326, I couldn’t replicate the issue but occasionally was seeing pulsating on Saving Private Ryan like it was not utilizing the FEL layers.
Hello. Why does you say “without ota”?
I thought that this option is useful to update firmware to future releases without cable.
I decided to downgrade to 20.5 as my daily driver, specifically this build: Dolby Vision for Minix U22X-J (Max) and Ugoos AM6+ - #683 by cpm
Direct downgrade worked without issues and I’m keeping 21 Omega for testing.
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You need the file without “ota” in the name (and “dce” in the name) if you want to install the firmware that is capable of dual-booting between Android and CoreELEC.
With the latest omega 21 nightly to play mkv P7 Fel the video should be set to 8.1. If set to lossless no file P7 will play. Only black screen and no audio.
Setting to 8.1 for a FEL will strip out both the RPU and EL layers.
All I know is that I used the dce 7z file without ota in the name and it worked fine without issue. As for OTA updates. Ugoos hasn’t updated this box in about 2 years. So assume the only updates you’ll see moving forward are for CoreELEC, and that works fine if you load that dce firmware onto it using the instructions I provided earlier.
I know. Let’s see the next update
For what it’s worth, there was work being to done with what I suspect is the modified buffering in Kodi 21 that was affecting FEL skip/resume skipping/hangining. I inadvertently incorporated those settings with even a CE 20.5 build and had the same behavior with FEL titles, as I am with the latest nightly. Those were reverted, so for sure check the next nightly.
Thanks to whoever mentioned SD card booting for testing purposes. This is working for me as well now, and I can leave my stable version running on eMMC. FYI you can ssh into CoreELEC booted from eMMC and run reboot update to boot from SD card as well.
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It should always boot from SD, if not then emmc by default. That’s always been the case for me with amlogic devices.
Don’t think so. I’m already installed dualboot-ota and it’s capable to boot on CoreELEC/Android without a problems…
It only strips the FEL layer, RPU remains.
I tried to read the topic but I got a headache 
so, does this mean the Ugoos am6+ is better than Dune HD homatics to play DV P7 FEL and all HDR10, DV?
In short, yes. I had that device too but I sold it.
has someone already tried the latest nightly? hopefully the buffering issues with fel movies are gone.
A fix just got posted and the next nightly will probably be in around 13 hours.
How did you install the dce-ota update ?
I know the OTA update files can be put on a flash drive and then you just go to settings/update in Ugoos and find it and let the box update itself. (Similar to OTA)
But the (dualboot) dce-ota is the same size as the basic ota for 0.5.4 so I was very sceptical it would actually install CE.
Not sure if it’s related but what I noticed that /sys/module/amvdec_h265/parameters/dynamic_buf_num_margin is still set to 8 and without anything less than 16 I get a lot of CVideoPlayerAudio::Process - stream stalled and freezing issue. Since I have added:
echo 16 > /sys/module/amvdec_h265/parameters/dynamic_buf_num_margin
to autostart.sh, it’s doing a lot better.
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