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> A USB4 host and USB4 peripheral device may optionally support TBT3 -Compatability. That sounds good from an implementors point of view, but offers another ar
by Dunedan 7y ago
> A USB4 host and USB4 peripheral device may optionally support TBT3 -Compatability.
That sounds good from an implementors point of view, but offers another area of possible incompatibilities for connecting USB4 and Thunderbolt 3 devices. Imagine both devices support tunneling DisplayPort signals, but the USB4 device doesn't support the Thunderbolt 3 compatibility layer: As in the example before they won't be able to establish a DisplayPort connection, while other USB4 devices, which offer Thunderbolt 3 compatibility might.
- tenebrisalietum 7y agoHow is this better than VGA again?
- user5994461 7y agoVGA caps at 2048 pixel wide if we are to believe a quick google search and the fidelity of the image may vary depending on the cable and graphic card in use.
- imtringued 7y agoIt supports multiple 4k screens over one cable.
- jandrese 7y agoVGA has the downsides of the analog signal, like ringing and smearing when you have a higher resolution running over a long cable. DVI ended up being kind of a mess with the different connector types and ultimately fairly limited digital bandwidth. Displayport is pretty good except everything Displayport costs 50% more than it should.
- Izkata 7y agoDisplayPort also seems to randomly stop working, requiring unplugging/replugging the USB to reset it. Occasionally I'll even boot up one morning to find it's not working at all and something or other needs to be reinstalled.