On Mon, 12 May 2025 15:52:04 +0300 Andrew Randrianasulu <randrianas...@gmail.com> wrote:
> And modern reincarnation of this idea, using OBS's plugins! > > https://m.youtube.com/watch?v=qXrn4MqY1Wo > "DIY "infinity contrast" TV - with 100% recycled parts" from two months > ago, initially found by my friend Vladimir after I showed him all this. > > added two more recipients in cc. > > Pekka, you might like this too, as less secretive description of how HDR > part of HDR display system works. Hi Andrew, that's a neat project for sure. > >> PS: I played around with Colorspace property on my hdmi connector on > >> RX550 via xrandr: > >> > >> guest@slax:~/botva/src/src$ DISPLAY=":0" xrandr --output 0x54 --set > >> Colorspace Default > >> guest@slax:~/botva/src/src$ DISPLAY=":0" xrandr --output 0x54 --set > >> Colorspace BT2020_YCC > >> guest@slax:~/botva/src/src$ DISPLAY=":0" xrandr --output 0x54 --set > >> Colorspace Default guest@slax:~/botva/src/src$ DISPLAY=":0" > >> xrandr --output 0x54 --set Colorspace opRGB > >> guest@slax:~/botva/src/src$ > >> DISPLAY=":0" xrandr --output 0x54 --set Colorspace Default > >> > >> Anything but Default resulted in VERY pink (nearly red!) image. Not sure > >> if this is limitation of 8bit per channel mode or hdmi to vga adapter I > >> use? Maybe https://gitlab.freedesktop.org/drm/amd/-/issues/3358 ? Thanks, pq
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