• warmaster@lemmy.world
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        1 day ago

        Try Linux on a 4k HDR 120hz TV and see what happens.

        This is only being fixed because Valve is releasing an HDMI console and pressuring both AMD and the HDMI forum to get their shit together. Although AMD has attempted to get it done in the past, it is only being addressed now.

        • Default Username@lemmy.dbzer0.com
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          1 day ago

          I thought it was being pushed now because mkopec managed to implement a partial, clean room reverse engineered version first using register captures from the Windows driver.

        • mybuttnolie@sopuli.xyz
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          22 hours ago

          I’ve been using linux with 4k120 tv with amd gpu for about half a year. dp to hdmi 2.1 cable works without issues.

        • Zamundaaa@discuss.tchncs.de
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          22 hours ago

          Try Linux on a 4k HDR 120hz TV and see what happens.

          It works fine, with chroma subsampling. At least I personally don’t ever notice it on the TV.

          That’s not to say this getting fixed isn’t important, but it’s mostly relevant for monitors and maybe smaller TVs that you sit closer to.

            • kbobabob@lemmy.dbzer0.com
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              22 hours ago

              4K 60hz is about 18GB/s and it’s being sent down a 1GB/s pipe typically when streamed. You’re not getting all the data. It’s really compressed to fit and the color space is usually set to 4:2:0 to again save bandwidth.

            • kbobabob@lemmy.dbzer0.com
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              22 hours ago

              4K 60hz is about 18GB/s and it’s being sent down a 1GB/s pipe typically when streamed. You’re not getting all the data. It’s really compressed to fit and the color space is usually set to 4:2:0 to again save bandwidth.

          • Default Username@lemmy.dbzer0.com
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            1 day ago

            4K 60Hz HDR is still limited to 8 bit color, which is unsuitable for HDR. You’d have to go down to 30Hz to get 10 bit color on HDMI 2.0.

            Meanwhile with this patch, I can do 4K 120Hz with 12 bit color.

            • kbobabob@lemmy.dbzer0.com
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              22 hours ago

              It’s only limited to 8 bit in 4:4:4 color space. It can do 10 bit 4K 60hz in 4:2:0 color space, which most things are streamed at because it is such a bandwidth saver.

          • Hupf@feddit.org
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            22 hours ago

            Lol, streaming. Paying for multiple subscriptions. Passively consuming media.