Fix HDMI-CEC weirdness with a Raspberry Pi and a $7 cable
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Re: Fix HDMI-CEC weirdness with a Raspberry Pi and a $7 cable
#2Super cool, I'm definitely going to have to grab a pi and set this up. Now if we could also solve the ps5/switch/etc not turning off the TV, my setup would be perfect!
Re: Fix HDMI-CEC weirdness with a Raspberry Pi and a $7 cable
#3Assuming you’re ok with connecting your receiver to the network, you should be able to wake the receiver if you detect the tv is on without any cables at all - if your tv is also on the network (I’ve got a home assistant automation doing exactly that) or you can use a $10 smart plug with power metering.
That said props for actually using HDMI-CEC! And it’s cheaper than most smart plugs (and probably safer, too)
Re: Fix HDMI-CEC weirdness with a Raspberry Pi and a $7 cable
#4Yup, my AppleTV is the only device that gets CEC right. Even my LG TV and LG soundbar get confused. And don’t get me started on the PS4 Pro’s garbage implementation. I’m sad that Logitech killed Harmony because CEC was supposed to make universal remotes obsolete — they’re still the only way my full home theater can function without juggling a dozen remotes.
Re: Fix HDMI-CEC weirdness with a Raspberry Pi and a $7 cable
#5The first time I "discovered" CEC was when the arrow keys on my TV remote inadvertently navigated the PS3 system menu. I thought I was hallucinating because there was no mechanism for this magic to happen.
Re: Fix HDMI-CEC weirdness with a Raspberry Pi and a $7 cable
#6I know it's called a bus, but I'm still surprised that all devices get the HDMI-CEC stream of all other devices. Being able to watch the Apple TV from the Pi was super cool, and I never would have guessed it was possible to see what was going on there (short of building a man in the middle hardware proxy)!
Re: Fix HDMI-CEC weirdness with a Raspberry Pi and a $7 cable
#7Yup, my AppleTV is the only device that gets CEC right. Even my LG TV and LG soundbar get confused. And don’t get me started on the PS4 Pro’s garbage implementation. I’m sad that Logitech killed Harmony because CEC was supposed to make universal remotes obsolete — they’re still the only way my full home theater can function without juggling a dozen remotes.
I've had pretty good luck with the Steam Deck for CEC, at least with the Apple USB-C hub.
Re: Fix HDMI-CEC weirdness with a Raspberry Pi and a $7 cable
#8I know it's called a bus, but I'm still surprised that all devices get the HDMI-CEC stream of all other devices. Being able to watch the Apple TV from the Pi was super cool, and I never would have guessed it was possible to see what was going on there (short of building a man in the middle hardware proxy)!
CEC is just i2c which is a bus. In fact you can hook regular i2c devices up to an HDMI port and communicate with them. You’ll need a resistor and shouldn’t draw more than 50 mA.
Re: Fix HDMI-CEC weirdness with a Raspberry Pi and a $7 cable
#9I know it's called a bus, but I'm still surprised that all devices get the HDMI-CEC stream of all other devices. Being able to watch the Apple TV from the Pi was super cool, and I never would have guessed it was possible to see what was going on there (short of building a man in the middle hardware proxy)!
CEC is just i2c which is a bus. In fact you can hook regular i2c devices up to an HDMI port and communicate with them. You’ll need a resistor and shouldn’t draw more than 50 mA.
I always assumed that it was a separate i2c bus per HDMI link and that it was the AVR’s job to handle a request from something and send the right requests to everything else.
Re: Fix HDMI-CEC weirdness with a Raspberry Pi and a $7 cable
#10Nice hack! The cat seems to be happy with the setup, too!