Thanks for trying to replicate this. Perhaps another odd glitch that is specific to the Vero + Marantz combo. But I am setting aside the Vero just now as I am finding a certain amount of micro stutter in 1080/24 from my bluray-sourced mkv’s, entirely absent with my K18 Pi. The stutter is only occasional, but enough to notice when it happens. All appropriate settings for framerate are correct, and nothing has changed server/network side.
That’s a known issue, we’re already working on it
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It amazes me how difficult it seems to be to keep the first post up-to-date with all known issues.
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Yes, I know … that’s another issue on the todo list (it seems with lower priority than fixing all the playback issues) 
Haven’t been able to reproduce this here yet, either… 
But my AVR has never had any problems with HRA whatsoever, even when HRA was differently packaged via passthrough which caused severe issues with some AVRs.
I’m encountering an issue with some HDR files.
The brightness of the OSD and subtitles when using external srt seems to fluctuate depending on the brightness of the movie. I don’t remember this being an issue using the stable build.
It seems this has something to do with the Maximum Content Light Level of the movie.
Arrival has a Maximum Content Light Level of 9977 cd/m2 and has an extremely bright OSD and subtitles.
Blade Runner 2049 has a Maximum Content Light Level of 457 cd/m2 and brightness of the OSD and subtitles seem more normal.
I read through this thread and couldn’t find any mention of this.
Which kernel are you on? Can you post uname -a please?
MaxCLL of 9977 nits seems extraordinary. What is the master display maximum luminance? You can’t master up to 10,000 nits on a 1000 nit display.
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I am on the 4.9 kernel from the fresh installation image in this post.
Linux osmc 4.9.113-40-osmc #1 SMP PREEMPT Fri May 14 23:33:33 UTC 2021 aarch64 G NU/Linux
Master display maximum luminance is 4000 cd/m2 for Arrival and Blade Runner 2049.
However the problem is technically with every movie played in HDR as the luminance of the OSD and subtitles is different with every movie that has a different Max CLL it seems.
Arrival is just the most extreme case.
I also tried installing the stable build with the old kernel and Kodi 18.9 and the issue is not present.
Thanks for the report. I think some changes did go into that May14 build. I’ll take another look.
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Is the opening post up to date, cause when i read here, i think its not?
Is this still in testing phase? 19.1 ?
19.1 is still in a state of testing.
Sam
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The OSD and subtitle luminance is actually perfect when installing the fresh image from this post and not running any updates.
HDR and SDR have the same luminance on OSD and subtitles.
The stable build with Kodi 18.9 the OSD and subtitle luminance is the same across all HDR titles but still quite a lot brighter than SDR.
Is that a kernel dated before 14 May, then? @chillbo and others were complaining about earlier builds.
My observation is the OSD was rather ‘washed out’ on HDR. Is that what you mean by ‘brighter’? And can you confirm if you are talking about HDR played on an SDR screen or HDR played on a HDR screen?
When using
Linux osmc 4.9.113-35-osmc #1 SMP PREEMPT Sat Apr 10 19:33:10 UTC 2021 aarch64 GNU/Linux
the OSD controls and menus including external srt subtitles during playback of HDR movies have a normal look to them. On every HDR movie I have tested the luminance is identical.
When using
Linux osmc 4.9.113-40-osmc #1 SMP PREEMPT Fri May 14 23:33:33 UTC 2021 aarch64 G NU/Linux
the OSD controls and menus including external srt subtitles during playback of HDR movies have different luminance depending on the title. Sometimes they can look normal, sometimes dim and sometimes they can be bright. It isn’t so much washed out as just very high luminance making subtitles etc extremely bright.
This is on a Sony A9F display so HDR played on an HDR screen.
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Linux osmc 4.9.113-35-osmc #1 SMP PREEMPT Sat Apr 10 19:33:10 UTC 2021 aarch64 GNU/Linux
Linux osmc 4.9.113-40-osmc #1 SMP PREEMPT Fri May 14 23:33:33 UTC 2021 aarch64 G NU/Linux
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Here’s what my Panasonic looks like
The OSD is a tad lighter than when playing SDR but basically the same hue.
I have some test clips of some flashing white bars. They are all the same except for the master display luminance and MaxCLL going from 1000 to 2000 and 4000 nits. I can’t see any difference in the OSD between those three.
Now someone else reported the garish colour you are getting but with HDR10+ only. I can’t find that post right now. Are the videos you are playing HDR10+ or DV?
Neither.
HDR10 only.
The video you are playing may also look correct.
Some HDR titles OSD don’t look like the picture I posted.
Blade Runner 2049 (457 cd/m2) OSD looks rather normal if not a bit dimmer than when playing SDR.
Arrival (9977 cd/m2) OSD looks like in the picture extremely blown out.
Black Hawk Down (4000 cd/m2) OSD still looks blown out but not as extreme as Arrival.
They all vary depending on the Max CLL.
Thanks for the info. I’ll check it out.
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