Auto Fullscreen HDR not working in mpv when cm=srgb

[NINNiT]

I'm currently on 0.54.1, however i think this problem exists since the (otherwise extremely awesome) 0.54.0 release.

Odyssey G9 OLED, AMD 9070XT, latest mesa and cachyos-proton.

This is my monitorv2 config section:

monitorv2 {
  output = DP-1
  mode = 5120x1440@240
  position = auto
  scale = 1
  bitdepth = 10
  cm = srgb
  vrr = 1 
  supports_wide_color = 1
  supports_hdr = 1
}

...but i also tried with

monitor = DP-1, 5120x1440@240.00, 0x0, 1, vrr, 1, bitdepth, 10

Those are my mpv flags.

profile=high-quality
target-colorspace-hint=auto
alang=eng,en
slang=eng,en
sid=auto

Fullscreen HDR in mpv works if i set cm to "auto", wide, adobe, edid and so on.
But it doesnt if its set to srgb.

The HDR detection/switch works in games

I'm pretty sure that this was not a problem pre 0.54.0.

The main reason that i want to set it to srgb is, that wide gamut just looks washed out on my G9, no matter which color primaries i choose. It looks a bit better (more contrast/colors - still not looking great) with render { cm_sdr_eotf = 2 }. If any of you guys have a G9 OLED and a few tips to share, i'll be grateful lol.

Thanks

With cm=wide:

With cm=srgb

[UjinT34]

target-colorspace-hint-mode=source should work. Might also need target-colorspace-hint=yes.
cm=srgb probably makes mpv think that HDR isn't supported and target-colorspace-hint=auto decides to do the CM on mpv side.

[NINNiT]

target-colorspace-hint-mode=source fixed it. thanks! 🚀

that flag wasn't needed before though

[NINNiT]

Don't want to be greedy, but now that i have you here....
Any links / tips / tricks for a better wide gamut experience?

[Dregu]

Wouldn't hurt if someone who knows about this cm stuff made a little guide on the wiki, I've also completely winged everything and I'm usually pretty smart about settings, just not HDR.

[NINNiT]

I just found another way to fix this issue:

https://wiki.hypr.land/Configuring/Variables/#quirks

quirks {
  prefer_hdr = 1
}

with that, target-colorspace-hint-mode=source isn't needed.