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Author Topic: Colorspace not Switching Back After HDR Playback  (Read 777 times)

IAM4UK

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Colorspace not Switching Back After HDR Playback
« on: April 14, 2019, 10:31:03 am »
Content I play regularly through MC25 includes:
Television (typically 720p or 1080i at 59.94fps)
BluRay MKV (1080p at 23.976fps)
UHD BluRay MKV with HDR (2160p at 23.976fps)

I have discovered that with Options / Video / Display Settings / Display Settings automatic change mode:  On, framerates wouldn't change back from 23.976 to broadcast-television standard, causing jerkiness. I fixed that by STOPPING playback (Ctrl+S) instead of merely exiting out of the playback to the Theatre Mode main menu.
However... If I play a UHD BluRay MKV with HDR, then MC25 does successfully trigger HDR on my LG OLED for playback of that media (and it looks spectacular!), but even when I STOP playback, no other non-HDR content will playback properly. All subsequent content triggers the HDR, and looks obviously wrong. This persists even after EXITing MC25. The only cure is a computer RESTART (or SHUTDOWN / Bootup).

Any ideas? Thanks!
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tij

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Re: Colorspace not Switching Back After HDR Playback
« Reply #1 on: April 15, 2019, 02:13:43 am »
Which version of Windows you using? ... if I recall correctly, the problem you describe was one of Windows 10 HDR bug ... Newer versions of Windows10 don’t have this problem
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HTPC: Win11 Pro, MC: latest 31(64b), NV Driver: v425.31, CPU: i9-12900K, 32GB RAM, GeForce: 2080ti
Screen: LG 2016 E6
NAS: FreeNAS 11.1, SuperMicro SSG-5048R-E1CR36L, E5-1620v4, 64GB ECC RAM, 18xUltrastar He12-SAS3 drives, 2x240GB SSD (OS)

RoderickGI

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Re: Colorspace not Switching Back After HDR Playback
« Reply #2 on: April 15, 2019, 02:59:11 am »
Oh yeah. Long threads ago. Lots of detail. I think you are right tij.

But try changing "Options / Video / Display Settings / Display Settings" to Custom, and then select the same settings as Automatic would have selected, or the best settings, and see if that fixes the problem. Because, at one time, Custom settings worked better than Automatic in this area.
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What specific version of MC you are running:MC27.0.27 @ Oct 27, 2020 and updating regularly Jim!                        MC Release Notes: https://wiki.jriver.com/index.php/Release_Notes
What OS(s) and Version you are running:     Windows 10 Pro 64bit Version 2004 (OS Build 19041.572).
The JRMark score of the PC with an issue:    JRMark (version 26.0.52 64 bit): 3419
Important relevant info about your environment:     
  Using the HTPC as a MC Server & a Workstation as a MC Client plus some DLNA clients.
  Running JRiver for Android, JRemote2, Gizmo, & MO 4Media on a Sony Xperia XZ Premium Android 9.
  Playing video out to a Sony 65" TV connected via HDMI, playing digital audio out via motherboard sound card, PCIe TV tuner

IAM4UK

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Re: Colorspace not Switching Back After HDR Playback
« Reply #3 on: April 15, 2019, 02:28:40 pm »
Thanks for the replies. This is Win10 rev 1809 with latest updates via "Search for new Windows updates..."

I have tried the Automatic and Custom resolution switching options, with same results.
I did also try Resolution Switching OFF, but of course, in that case HDR simply didn't engage on HDR content.
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darky

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Re: Colorspace not Switching Back After HDR Playback
« Reply #4 on: April 15, 2019, 02:41:39 pm »
in madvr  you can input what resolutions and refresh-rate your screen handles (display modes). Perhaps you can try that,
1080p23, 720p29, 2160p25 etc
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