I'm fairly certain that USB C can transfer relatively large amounts power and data simultaneously, compared to the old standard. I remember reading that as one of the main benefits a while back. I'm certain it will charge while docked and playing. It would make no sense if you couldn't.
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All Alternate Modes must minimally maintain a USB2.0 and USB Power Delivery connection.
So it is required, I don't know why rumours stated otherwise.
USB-C is awesome though, the switch will have access to power, 2xUSB 2.0, 1xUSB 3.0, HDMI, and maybe more just from a cable.
How come OG PS4 supports HDR with a HDMI 1.4 port though?
I mean, I won't get my hopes up but in theory...?
After looking around it seems like you may be right and that it isn't a hardware limitation (I don't think that nintendo will support it, but who knows).
Dolby Vision doesn't need HDMI2.0
What version of HDMI does Dolby Vision require?
Also, if Dolby Vision uses dynamic metadata, how can an Ultra HD Blu-ray player pass the proper signal on to an HDR TV using HDMI 2.0a (which supports only static metadata)?
During the color grading process in post-production, the Dolby Vision workflow enables the colorist to perform a scene-by-scene analysis of the particular look that they are going for. Once determined, a set a metadata is generated for this scene, then married to the picture and transmitted on a frame-by-frame basis. This is why the type of metadata discussed here is referred to dynamic metadata. This concept is specific to Dolby Vision and adds a layer of performance and fidelity on top of other concepts that only use static metadata.
In addition to the scene-based dynamic metadata mentioned above, there are also some static metadata parameters, such as specifications of the mastering display used during the color grading process. This data does not change for the duration of the program and is hence called static metadata. This is data can be carried via the existing HDMI standard.
Dolby Vision does not require HDMI 2.0a or 2.1. It embeds the metadata into video signal. Knowing that previous versions of HDMI would not pass the Dolby Vision dynamic metadata, Dolby developed a way to carry this dynamic metadata across HDMI interfaces as far back as v1.4b. The HDMI specification is now catching up with v2.0a supporting static metadata and future versions expected to support dynamic metadata as well. Dolbys intent is not to compete with HDMI but merely to enable deployment of a full Dolby Vision HDR ecosystem without having to wait for HDMI standardization to catch up. Dolby was and is directly involved in standardizaton of the current and future versions of HDMI.
In practice, most Dolby Vision content is in Ultra HD and requires HDCP 2.2 copy protection, which is only available on HDMI 2.0 and up.
Note that only external sources like Ultra HD Blu-ray players and streaming devices such as Roku or Amazon Fire TV rely on HDMI connections to feed the video to a TV set. For streaming apps like Netflix, Amazon Prime, Vudu and M-GO the HDMI version is irrelevant when the app is running on a Smart TV because the HDR signal can bypass HDMI completely.