Christian SeligNov 19
TIL that M4 Macs (but not M5?) support HDMI CEC, could be cool for a home theater PC (I don't think any PCs support this?) https://support.apple.com/en-ca/108928
Connect to HDMI from your Mac - Apple Support (CA)

Mac computers can use an HDMI cable or adapter to connect to a TV, display, or other HDMI device.

Apple Support
Show threadDaniel KennettNov 19

@christianselig You can get a little dongle thingy that works on both Mac and PC to add CEC to it. I wrote a Mac app that interfaces with it many years ago: https://couch-slouch.com

Being able to control your TV with AppleScript was pretty fun to build!

Couch Slouch

Show threadChristian SeligNov 19
@ikenndac Whaaaaaatttttt. And it works reliably and can even pass through ARC and the newer bandwidth protocols?
Show threadDaniel KennettNov 19
@christianselig You’d put the dongle on your Mac's path up to the TV/receiver, not in the ARC path. Other than the CEC lane, it's just a passthough though. It runs 4K60 fine, haven't tried with anything higher (and you might be able to tell from the age of that website 😛).
Show threadGiuseppe AllettiNov 19
@ikenndac @christianselig last I looked into this there was no HDMI 2.1 support, so no 120Hz or VRR. I ended up simulating CEC functionality with a Rube Goldberg machinery of Home Assistant automation.
Show threadDaniel KennettNov 19
@giuseppe @christianselig Since it's just passthrough it may well just work - it's not an active part of the signalling path for anything but CEC, and nothing changed in the cabling between those versions. Haven't tried it though.
Show threadGiuseppe AllettiNov 19
@ikenndac @christianselig if you get a chance to test it, I’d be interested in the results! But yeah you can spend $2K+ on a GPU and still not get CEC support 😅
Show threadChristian SeligNov 19

@giuseppe @ikenndac Dang per their spec page looks like only HDMI 2.0 not 2.1 https://www.pulse-eight.com/p/104/usb-hdmi-cec-adapter

Apple says their adapter also adds support for HDMI CEC, but no specs listed naturally https://www.apple.com/shop/product/mw5m3am/a/usb-c-digital-av-multiport-adapter

Control your TV from Kodi, or vice versa! USB - CEC Adapter

Control your TV, Amplifier and/or Blu-ray Player from Kodi!

Show threadDaniel KennettNov 19
@christianselig @giuseppe Like I said, since it's a straight passthrough it may well just work: https://mastodon.social/@ikenndac/115577124101572609
Show threadDaniel Kennett

@christianselig @giuseppe Quoting their page, even:

> Our technology works on all versions of HDMI®, including HDMI® 2.0a we don't interfere with the video signal in any way.

Nov 19 at 4:11pmIvory for Mac
Show threadChristian SeligNov 19
@ikenndac @giuseppe Oh, nice!
Show threadGiuseppe AllettiNov 19
@ikenndac @christianselig ah see didn’t notice that. Then it might very well work.