[vdr] HDMI-CEC power consumption

Lucian Muresan lucianm at users.sourceforge.net
Fri Apr 20 01:03:18 CEST 2012


On 20.04.2012 00:42, Pim Zandbergen wrote:
> On 04/19/2012 11:39 PM, Lucian Muresan wrote:
>>
>> BTW, since power consumption and heat seems to concern you, just curious
>> if you have measured or happen to know how much power your AV receiver
>> and TV consumes when in standby since you set them up on HDMI-CEC.
>> AFAIK, most AV receivers suck more than 30-40W just because the HDMI
>> electronics has to be powered all times in order to have CEC working...
>>
>> Regards,
>> Lucian
>>
> 
> Good point. The IR receivers on the AV receiver and TV are also always on.
> Does HDMI-CEC in standby cause so much more power consumption?

Well, seems it does in most AV receiver makes, because the manufacturers
provide them mostly with one single power(ful) supply, there are some
Yamaha models with a separate (low) power supply just for the video
(HDMI-related) circuitry, they can achieve just 2-3W in standby with
HDMI-CEC... Anyway, it's an issue one shouldn't take for granted and
meet with decent skepticism, rather measure at the power outlet in the
given situation. The manufacturers are not likely to specify this in
their data sheets or manuals. Some models allow you to setup HDMI-CEC
only for the ARC from the TV and let power control or HDMI passthrough
disabled. But the latter two are also nice to have, unfortunately they
come at such cost...

Regards,
Lucian



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