CEC "just works" for me and has for as long as I've owned a flat panel TV (maybe 12 years or so?). Back in the day (before I had an HDMI receiver), I could use the TV remote to control the bluray player. These days I have a receiver, and the volume control on pretty much any device will control the audio on the receiver.
ARC was a bit more spotty, but I moved somewhere with no live TV reception, so my only use-case for it went away (everything else routes audio through the receiver).
Re:Displayport: A Better Video Interface
by scarface_74 on Tuesday July 11, 2023 @12:23PM
(#36683259)
> HDMI CEC? Has anyone actually got that working correctly
I stay in lots of hotels and take my Roku stick. Most of the time the Roku remote can control the TV volume and power using CEC
HDMI-CEC is great for TVs but when I searched recently I found that both Nvidia and AMD do not support HDMI-CEC. This was disappointing to find out when I built an HTPC for my TV.
HDMI CEC? Has anyone actually got that working correctly?
Anyone remember Ethernet over HDMI? Apparently that was a thing. (Not to be confused with HDMI over Ethernet, which actually has some uses.)
HDMI for soundbars? We got ARC ports (Audio Return Channel). But it was buggy, didn't support lossless audio, needed new DRM, and was bad at maintaining lip sync, so introducing eARC (Enhanced Audio Return Channel). eARC works by... scrapping Ethernet over HDMI and reusing the wires. Better get a new TV that supports it, there's no adapters (downgrading to regular ARC if any part of the chain doesn't support eARC).