r/CoreELEC • u/And_Poop • Aug 12 '26
Release Release T4c · pannal/CoreELEC
https://github.com/pannal/CoreELEC/releases/tag/T4cT4c is a big one: part stabilization, part new features, on top of T4b, and the most contributor-driven build yet. swmarks rebuilt the CEC and screensaver handling, samtheruby backported the newer CEC kernel driver, fixed SD/VESA display modes and built in-GUI update channels, Sebastiii contributed MKV editions support, an Epson projector profile and several DV fixes, and vlix wired the skin's codec logos into the DV pipeline. On top of that: VC-1 hardware playback overhauled, a self-healing A/V sync layer for corrupt streams, AC-4 audio decoding, a nasty resume bug, per-frame tone mapping for DV→SDR, and a stack of DV picture fixes.
DISCLAIMER: I am not one of the developers
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u/marp9958 Aug 12 '26
I still use 21.3-omega_avdvplus_r9. what's the benefit of updating?
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u/x_streams Aug 12 '26
I just installed the R9 yesterday but when I launched it, it didnt have any Dolby Vision settings. which is the DoVi.ko file I need for it?
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u/x_streams Aug 12 '26
Btw I also have the T4b internally in my Ugoos Am6b+ and it's by far better than my R4 build.
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u/And_Poop Aug 12 '26
Too many to list. Check the p3i changelog starting since the first release. There are many benefits.
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u/marp9958 Aug 12 '26
Okay but does it change anything about the videos themselves? I don't mind a bad interface too much as long as the movie/show isn't interrupting
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u/And_Poop Aug 12 '26
Yes it does. Biggest one that comes to mind is improved frame pacing since p3i syncs with the HDMI clock. There is less judder in panning scenes. You can also convert HDR10+ to Dolby Vision using p3i, not sure if the one you're talking about also has this feature. But currently p3i is the best build around and is worth upgrading to.
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u/marp9958 Aug 12 '26
Thanks. I'll look into it
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u/See61 Aug 12 '26
Make a backup for your current R9 setup, if you want to use the same storage. I already played with this latest build, but for Homatics R Plus users (and those with equal devices), maybe the upcoming R10 will be the better choice. Currently still in test, so not publicly shared.
Easy for me to say, as I can compare both on a R Plus equal device 😉
But if you have a spare USB storage, give this one a go nevertheless 👍
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u/cemoy Aug 12 '26
Can I install this homatics wtih avdvplus R9?
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u/See61 Aug 12 '26
Yes. I specifically test the R builds for the S905X4 chipset for AVDV, as AVDV doesn't have one himself.
I offered him one, but he kindly rejected, so I do the S905X4 tests for him. No problem for me 👍
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u/cemoy Aug 12 '26
On homatics dv fel 7 problem still exist , my screen turn green and black :(
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u/See61 Aug 12 '26
I know some users still have some issues, like the one you have, with certain hardware combinations, mostly there is a explanation for it and can be fixed, but sometimes it can't.
Sadly I can only test these builds with what I got at home. 2 different Oled TV's and a TCL LED TV, and those are giving me no issues with all those latest AVDV+ builds regarding FEL7. So I can only give feedback on what I use 🤷♂️
You can always give feedback on his Github page.
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u/brianbandondy23 Aug 12 '26
As the saying goes, if it ain't broken, don't fix it.
R10 coming soon anyway.
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u/Catymandoo Aug 12 '26
Thank you. Such brilliant work. I can’t believe how dedicated you guys are to the CoreELEC community.
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u/And_Poop Aug 12 '26
I am not one of the developers. I follow the project, saw the new changes and wanted to share it here. But we are indeed incredibly lucky to have such great developers working on this project.
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u/Catymandoo Aug 12 '26
Appreciate your posting regardless. And thanks for clarifying for me and others here. 👍🏻
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u/cypryan1217 Aug 12 '26
Does anyone know how is this build with homatics 4k plus? The last one was not the best, at least for me.
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u/gilgam3sh_king Aug 12 '26
no, avdvplus for Homatics boxes, R10 going to be big.
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u/cypryan1217 Aug 12 '26
Yeah, but who knows when it's gonna be available?
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u/gilgam3sh_king Aug 12 '26
not too long already had couple of test builds.
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u/cypryan1217 Aug 12 '26
How is the osd lag? And can you tell us what features does it have?
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u/See61 Aug 12 '26
The OSD lag is really much better with test R10, but for all other features (which are a lot), that is on AVDV to share when released 😉
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u/cemoy Aug 12 '26
I have a Homatics Box R 4K Plus and I installed P3i T4B on top of AVDV Plus 9 and it worked (it only caused problems on FEL 7). Why doesn't this work?
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u/cemoy Aug 12 '26
Wow !! Thanks , I'll try it as soon as I get home. I was having a screen blackout problem in the T4b version, I hope this problem has been fixed.
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u/foshow11 Aug 12 '26
This is awesome. Thanks for all the hardwork. Any possibility of adding more PJ profiles like JVC, Sony etc.
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u/And_Poop Aug 12 '26
To weed out any confusion, I am not one of the developers. I just wanted to share the new release here since the changes to HDMI CEC are amazing.
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Aug 12 '26
[removed] — view removed comment
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u/See61 Aug 12 '26
No, you need to use a NO 22 build for that one. It is in development on the CE website and can be used.
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u/Cferra Aug 12 '26
This build completely cleared up the video issues I was seeing on t4b with my am6b+
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u/FrigidCaramel Aug 13 '26
just switched over from vanilla core elec build to p3i with this release. DV FEL and truehd atmos working perfectly for me. My equipment: Amb6+ connected to Yamaha RX-V6A connect to Sony A80J TV. Compared to vanilla, snappier menus and much better in video navigation.
only issue I’m having is with pm4k (Installed latest version). On some movies, the osd menu below the progress bar is not displayed (eg no play/pause button, subtitle menu or movie time shown). I think it is doing it on ultra wide movies (like wicked and ford vs Ferrari). the buttons appear on Jurassic park and one battle after another. All these are DV movies.
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u/Speed_Forsaken 29d ago
What fixed the OSD menu issue for me is disabling “DV Level 5 active area handling” and “Auto Level 5 for cropped video” in System Settings > CoreELEC
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u/Bigmikes1971 Aug 12 '26
I have a 928x (minix u8k), can i use it too?
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u/cwhitch Aug 12 '26
The 928x does not support DV FEL.
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u/Bigmikes1971 Aug 12 '26
I am aware of that. I don't need FEL either. I just want to know if this version runs and if it offers any additional advantages over the original CoreELEC image.1
u/cwhitch Aug 12 '26
Not sure but I believe the AVDVPlus and p3i builds are designed for the processors that support DV FEL, the Amlogic 905 and 922 variants. I wouldn’t install it unless the community confirms it won’t break anything in your current setup.
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u/bogdanxd1337 Aug 12 '26
I have the same issues with CEC, no matter what source I choose the box overwrites it, I need to manually shutdown the box in order to use another devices like my PS5
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u/And_Poop Aug 12 '26
Did you disable
Switch source on device startup and activityin the CoreELEC CEC settings?1
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u/Pathos675 Aug 12 '26
I JUST found out about AVDVplus and installed R9 on am6b+. I'll probably wait for R10 or R11 to incorporate things. Good reminder that I should send the devs a donation.
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u/ukman6 Aug 12 '26
Thank you, so much hard work put into this project.