this post was submitted on 04 Jul 2026
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The CEC thing is weird to me; does it need special hardware other than just HDMI? Couldn't that be handled via software?
Valve literally had to develop hardware to do it because consumer graphics cards just don't offer it, or the access needed to make it work. No steam machine come will offer this in the short term, but they might in the medium term. Reliability and consistency might differ once it does exist, but that remains to be seen.
Short answer is yes, it requires hardware that to my knowledge isn't available on normal consumer motherboards.
CEC is a standalone pin on HDMI, so if the adapter or cable doesn't wire that up (for whatever reason) then it won't work.
And if you're using DisplayPort output (Which is probably the case, since HDMI has a load of issues), then you need to ensure whatever adapter you're using supports translating from the DP encoding to the HDMI-CEC pin.
If that all works, then you should be fine, as the software side has supported it for ages (i.e. Linux 4.8 added support)
Yes, LTT tried getting CEC to work, and at the very least, it isn't trivial. I'd hazard a guess that someone with more determination and willing to go deeper might find a way of spoofing the signal using an esp or something, but at the very least, it's not something you can just enable or disable with a toggle.