With the recent drama around HDMI vs. Foss drivers on Linux, I'm curious why haven't we seen that bigger push from TV vendors to support USB C display port.
Most of my monitors work with USB C, Even consoles like steam deck, a lot of high end phones seem to support USB C.
So... Are there any features of HDMI that USB C display port doesn't support?
The other way round, DisplayPort's Multi-Stream Transport allows connecting multiple displays to a single computer source.
This reflects the facts that HDMI originated from consumer electronics companies whereas DisplayPort is owned by VESA which started as an organization for computer standards.
That depends on whether or not you consider single-link DVI-D as the "very first version" of HDMI.
So the linux DisplayPort driver at least supports the feature, whether or not it's fully standardized/required.
- TV manufacturers are often (always?) members of the HDMI consortium, meaning they financially profit from each device that has an HDMI port.
- Manufacturers of devices with HDMI ports are heavily discouraged from also including competing ports like DP.
Also, lowest common denominator HDMI in TV format has HDCP decoder as the only complex part, you can theoretically drive a dumb panel with few fixed function ICs that aren't even related to HDMI. Simplest dumbest case you can advertise the bare minimum supported display setting in EDID, and plop few buffers and ADCs and drive an analog TV off it.
Meanwhile simplest possible DisplayPort implementations still requires that your display can handle packetized data sent over PCI-E PHY layer, with more complex data structures and setup information than "plop an I2C rom chip here, few ADCs and buffer logic here, and you've got HDMI without HDCP to analog CRT".
Anyway, HDMI is for TVs and DisplayPort is for monitors. They're both entrenched enough that it doesn't make much sense to try to cross over.
HDMI world wants DRM because other than Kim Dotcom (who is highly problematic for other reasons) no one has dared to stand up to the MAFIAA goons.
Computing world wants DisplayPort and a hassle-free, high quality experience. DRM breaks that.
Also, since older HDMI was physically compatible with DVI ports, a lot of computers preferred to keep DVI ports...
Cost. USB c has much more overhead. For example, people expect they’ll be able to charge with it and have usb pass through.
Personally I’m convinced it’s mostly because the display manufacturers want to discourage the use of TVs as monitors, in order to protect their margins on monitors.
8k monitors should be sub 1000 usd by now and standard for anyone working with screens. You can get that as a tv but not as a monitor. :(