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JRVR issues with HDR Passthrough [All these fixed with build 55]

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SamuriHL:
Perfect, thanks for that.  It seems helpful to me.  Whether it's placebo or not, it's definitely not harming anything by having it.

Manni:

--- Quote from: SamuriHL on May 31, 2024, 11:22:13 am ---Ok, interesting.  I think Manni you're on to something here about the refresh rate change causing the issue.  If I set my display to 120 and turn OFF custom refresh rate options in MC, I do indeed get metadata passed without having to enable the OS nonsense first.  IF, however, I have the refresh rate option in MC set to on, I lose all metadata unless I enable OS HDR before playback.  So I don't know if that can be improved but that's what's happening there.

Hendrick, while we're on the topic of DV and profile 7.  Any chance you could eventually include an option to convert it to profile 8 on the fly.  Kodi now has that option built in and it's useful for some people. I think for the purposes of using the DV data here it MIGHT be useful?  But I'm with Manni, please don't just shut it off for profile 7.  I definitely see improvement in MEL titles for sure.  An option would be nice.

--- End quote ---

Thanks for confirming that you're also experiencing this and that refresh rate change might be involved.

I'm still testing and trying to find a way to 100% reproduce the issue. Please can you check in your VRROOM OSD settings and report what your "ignore metadata change" box is set to? If it's checked (enabled), can you disable it and report if you see any difference in behaviour re displaying the HDR metadata info?

What is your default refresh rate in Windows (and/or the one specified in JRVR if you use custom)?

SamuriHL:

--- Quote from: Manni on May 31, 2024, 02:26:11 pm ---Thanks for confirming that you're also experiencing this and that refresh rate change might be involved.

I'm still testing and trying to find a way to 100% reproduce the issue. Please can you check in your VRROOM OSD settings and report what your "ignore metadata change" box is set to? If it's checked (enabled), can you disable it and report if you see any difference in behaviour re displaying the HDR metadata info?

What is your default refresh rate in Windows (and/or the one specified in JRVR if you use custom)?

--- End quote ---

I can 100% reproduce it like I told you.  My PC is set to 120Hz 2160 res.  If I enable Display settings automatic change mode: on set to 23.976 for (most) UHD's, then I lose metadata.  Unchecking the ignore metadata change made no difference and I knew it wouldn't because I manually refresh my VRROOM (note I'm not using the OSD.  I have that OFF completely.  I am using the web interface which I ALWAYS have up on my laptop.)  Refreshing after the HDR signal settles down still shows that the metadata is missing.

EDIT:

And turning OFF the display settings automatic change mode gives me metadata every time.  Without having to enable the OS HDR mode.  So yes, the refresh rate changing is 100% causing this problem, at least for me.

Manni:
Okay, I've done more testing re bug #1 (HDR metadata) and I can confirm the following:
1) There is definitely a link with auto refresh rate switching in JRiver display settings. I never have the issue with auto refresh rate disabled. The issue only arises when it's set to on (standard/native rates) or custom (I use 119/120 as appropriate, with a defaut at 119.
2) The issue can happen even if there is no need to switch, for example the current rate is 119 and you play a 23p title.
3) Whether the correct metadata is displayed or not doesn't seem to affect the HDR to HDR tonemaping (it's still active and the picture changes if you change the target), but there might be unwanted double tonemapping as the display tonemapping might stilll be active with empty metadata.
4) This empty metadata issue hapens with HDR passthrough and HDR to HDR. It's obviously more of an issue with HDR passthrough if it trigger the wrong curve in the display.
5) This doesn't seem to be a VRROOM issue but I never use the device itself to display HDR metadata.
6) Not related but I've done some tests and I confirm that enabling HDR10+ processing frequently produces worse results than leaving it disabled, for example with the S&M demo content. I therefore recommend to leave it disabled as JRVR DTM does a significantly better job, at least with a 1,000nits peak target for HDR to HDR.

Manni:

--- Quote from: SamuriHL on May 31, 2024, 05:44:52 pm ---I can 100% reproduce it like I told you.  My PC is set to 120Hz 2160 res.  If I enable Display settings automatic change mode: on set to 23.976 for (most) UHD's, then I lose metadata.  Unchecking the ignore metadata change made no difference and I knew it wouldn't because I manually refresh my VRROOM (note I'm not using the OSD.  I have that OFF completely.  I am using the web interface which I ALWAYS have up on my laptop.)  Refreshing after the HDR signal settles down still shows that the metadata is missing.

EDIT:

And turning OFF the display settings automatic change mode gives me metadata every time.  Without having to enable the OS HDR mode.  So yes, the refresh rate changing is 100% causing this problem, at least for me.

--- End quote ---

It looks like we posted at the same time. I also refresh the OSD using the web interface or the remote/IP control. We're in agreement, I just wanted to make sure that a rogue option wouldn't make testing more unpredictable.

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