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graysky

Wiki Maintainer

From: :wq

Registered: 2008-12-01

Posts: 10,673

Website

green tint on HDR video clip [SOLVED]

I have a HDR 400 monitor connected to a Radeon RX 560, both of which should output/render HDR content.  When I play this test clip in mpv or vlc, the resulting video has a green tint to it/looks terrible.  Is there a driver setting I need to tweak?

I am using xf86-video-amdgpu with libva-mesa-driver and mesa-vdpau.

Here is a tiny screenshot of what I see:

Last edited by graysky (2023-01-27 18:19:12)

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seth

Member

Registered: 2012-09-03

Posts: 60,813

Re: green tint on HDR video clip [SOLVED]

https://wiki.archlinux.org/title/HDR_Monitor_Support

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graysky

Wiki Maintainer

From: :wq

Registered: 2008-12-01

Posts: 10,673

Website

Re: green tint on HDR video clip [SOLVED]

Thanks, seth.

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just4arch

Member

Registered: 2023-01-07

Posts: 99

Re: green tint on HDR video clip [SOLVED]

I've got ....strange... results when playing this:
Windows MPC-BE: same as yours
Windows MPV: extreme colours (dark blue water, yellow sand)
Arch Linux VLC: same as yours
Arch Linux MPV: https://imgur.com/aWNWeRz

It seems at least mpv is able to produce a useful picture:

mpv --no-config --vo=gpu-next http://sylvan.apple.com/Aerials/2x/Videos/BO_A012_C031_HDR_20190726_HDR_4K_HEVC.mov

Last edited by just4arch (2023-01-27 18:40:45)

graysky

Wiki Maintainer

From: :wq

Registered: 2008-12-01

Posts: 10,673

Website

Re: green tint on HDR video clip [SOLVED]

Wow, adding the --vo=gpu-next does indeed fix the green tint.  Does the mpv under windows for you look the same as under linux with that switch?

Last edited by graysky (2023-01-27 18:43:56)

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just4arch

Member

Registered: 2023-01-07

Posts: 99

Re: green tint on HDR video clip [SOLVED]

I just double checked, without hwdec=dxva2, it looks normal as well in mpv on Windows with vo=gpu-next and tinted without.
With hardware decoding: https://imgur.com/BXYU2DN

But even with madVR I can't get this video to display as HDR (as in the monitor switches to HDR mode).
Works for youtube videos with HDR.

I played around with mpv a bit, as there are reports online, that it might be possible to get HDR passthrough with DRM backend, but couldn't get it to work.

Last edited by just4arch (2023-01-27 19:11:23)