USB Type-C is such a mistake for video connectivity. It just doesn’t work most of the time and when it works, any tiny move of the USB Type-C cable breaks it down.
HDMI Alt Mode for USB Type-C Connector
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Re: HDMI Alt Mode for USB Type-C Connector
#12HDMI Alt Mode was basically dead on arrival. The computer world pretty much standardized on DisplayPort already, so USB-C devices would already have to support DisplayPort Alt Mode anyways. Why add support for yet another Alt Mode when DP-to-HDMI converter chips are dirt cheap, and pretty much all USB-C-to-HDMI cables will be using those anyways due to the aforementioned DP ubiquity. One thing which really bothers me…
It's not the real deal, but https://www.quantumdata.com/assets/essentials_displayport_us... looks to be quite useful for understanding DP Alt Mode. I've used their DP regular protocol PDFs, though because this is a transcript of an animated webinar, there are images covering text which you'll need to remove in a PDF editor or LibreOffice Draw (which can import PDFs).
Re: HDMI Alt Mode for USB Type-C Connector
#13USB Type-C is such a mistake for video connectivity. It just doesn’t work most of the time and when it works, any tiny move of the USB Type-C cable breaks it down.
This has not been my experience at all with DP in lightning and USB ports.
Re: HDMI Alt Mode for USB Type-C Connector
#14USB Type-C is such a mistake for video connectivity. It just doesn’t work most of the time and when it works, any tiny move of the USB Type-C cable breaks it down.
That's why you should buy an expensive cable that comes with shielding. Most likely the Type-C cables that said USB4 compilant would do
Re: HDMI Alt Mode for USB Type-C Connector
#15USB Type-C is such a mistake for video connectivity. It just doesn’t work most of the time and when it works, any tiny move of the USB Type-C cable breaks it down.
I use USB-C-to-DP cables as well as full Thunderbolt and haven’t had issues with them.
USB-C cables can be garbage, so you probably need to get a better one.
Re: HDMI Alt Mode for USB Type-C Connector
#16Yeah, this is what a lot of people don't get: HDMI Alt mode has failed to launch, a lot of devices out there just use the DP alt mode when trying to output video out of a type C port.
When you have a C-to-HDMI (eg https://frame.work/products/hdmi-expansion-card) it's more like .... C-to-DP(implicit in type C)-to-HDMI. If you have a monitor that has both DP and HDMI you probably want to get yourself a simple C-to-DP cable as there's no active conversion going on so it's more likely to work.
Re: HDMI Alt Mode for USB Type-C Connector
#17USB Type-C is such a mistake for video connectivity. It just doesn’t work most of the time and when it works, any tiny move of the USB Type-C cable breaks it down.
That's why you should buy an expensive cable that comes with shielding. Most likely the Type-C cables that said USB4 compilant would do
Monoprice has relatively cheap USB4 cables in 3 ft (40Gbps) and 6 ft (20Gbps) versions. I've gotten a bunch to replace my previous mess of different cable types.
Re: HDMI Alt Mode for USB Type-C Connector
#18USB Type-C is such a mistake for video connectivity. It just doesn’t work most of the time and when it works, any tiny move of the USB Type-C cable breaks it down.
I've had the same experience. Especially when you're trying to daisy chain or use anything very high bandwidth. I've tried different cables too but the mating just isn't solid enough and small bumps kill the link.
Re: HDMI Alt Mode for USB Type-C Connector
#19USB Type-C is such a mistake for video connectivity. It just doesn’t work most of the time and when it works, any tiny move of the USB Type-C cable breaks it down.
it's 2023 and I can't plug my phone into a dock or monitor without fancy bits. At least I can plug in a USB and and it can act as a host.
The _only_ reason I want a linux based phone is so I can just use my phone like a normal device.
The software implementations (who remembers MTP?) for phones kills its usability as a general purpose device.
Re: HDMI Alt Mode for USB Type-C Connector
#20not a lot of details in this but I'm curious how the AC-coupled USB-C interface works with the DC-coupled HDMI. typically there would be a DP-to-HDMI convertor in the cable plug and just use DP alt-mode but this specifically says: "This allows native HDMI features and capabilities to be utilized in a source device and to be directly connected to any HDMI display. Other Alt Mode solutions do not enable HDMI-specific f…
Maybe an opto-isolator on each signal line at the HDMI end? HDMI inputs are generally on devices that have their own power source, so it's not like they need the power coming over the cable; and they're also generally on devices that have the room for active components like an opto-isolator inside them.