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Jul 8, 2021 at 17:22 comment added qrk I imagine the cheap HDMI cables are built as poorly as cheap USB cables. A work mate was having interference issues on his software defined radio system in his office. Turned out to be USB cables. Almost every USB cable he had was defective (friction connection of the cable shield to the outer metal part). He finally found a manufacturer that built good quality cables which eliminated the interference issues.
Mar 20, 2020 at 19:11 comment added Justme Not according to my experience they don't limit to 8 bits RGB. Source devices such as BD players, Apple TV 4K, etc, tend to select highest and best settings that the display supports, including 4k, high color depths, YCbCr colorspace and HDR/DolbyVision as default, so consumers don't have to muck around with settings.
Mar 20, 2020 at 18:33 comment added hacktastical 8 bit RGB is the default for HDMI - that's what 'the most common' phrase means. Extended color depth, HDR, etc are optional features that may or may not be supported by both the HDMI source and sink.
Mar 20, 2020 at 18:16 comment added Justme Your clock rates assume 8-bit colors at 4:4:4 chroma sampling, or 12-bit 4:2:2 color sampling. For example most sources like BD players use more bits per color these days. E.g. 2160p24 uses 445MHz TMDS symbol rate with 12-bit colors - but the clock will be one quarter of that.
Mar 20, 2020 at 16:47 history answered hacktastical CC BY-SA 4.0