[lxgr]

This would be difficult with HDMI cables – unlike USB-C, they’re not electronically marked.

Only HDMI 2.1 introduced link training (before that it was just the source picking a resolution that the sink supports and hoping for the best!), but even that is an end-to-end thing; the cable is not part of the conversation, so you wouldn’t know if the cable is bad or the socket/internal wiring beyond the cable on either side.

[notyourwork]

Most (all? But I’d have to double check) of my hdmi cables have the version printed on the cable jacket. Seems entirely sensible to do.

[lxgr]

Oh, sorry, I thought this was in the sub thread about “why not mark cables in software”!

Fully agreed – the maximum supported data rate would be even more important to be printed on the cable for HDMI.

One reason I could see why manufacturers would be hesitant to do this is that some future improvements might not have higher requirements for cabling, so the printed data rate might be underselling actual capabilities.

[vel0city]

As a consumer I'd much rather have a cable rated for one level and end up actually supporting more than not having any information at all.

[falcolas]

All but one of mine. The one has a plastic braid "protecting" the cable, which hides any potentially useful markings.

I just had to go through the "do I have any good HDMI cables" dance, and the answer was effectively no.

[kalleboo]

I just checked the 4 HDMI cables plugged into my TV and not a single one had the version printed on it

The closest was one that said "High Speed HDMI cable with ethernet" but I'm not sure what "high speed" is supposed to mean