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As documented in this question, I recently bought a new Samsung monitor and connected it to my computer using a HDMI connection; this monitor just doesn't seem to support any power saving mode: it won't shut down when the computer tells it to do so, and it won't turn on when a HDMI signal is received if it was previously shut down manually or using its internal inactivity timer.

I asked the Samsung support about this, and they told me this is by design, because the HDMI protocol doesn't support power saving and turning devices on or off.

What I want to know is: is this a real limit of HDMI, or is it just a lazy implementation by Samsung? Do other monitors/TVs support power saving when connected via HDMI, or is it actually not possibile to properly handle power saving over a HDMI connection?

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Massimo
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1 Answers1

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Samsung are wrong, quite simply.

I am using HDMI and my monitor (HP Pavilion 23xi) is perfectly able to sleep.

Check your graphics settings, and if the monitor goes to sleep within say 30 seconds after switching your PC off, then you know that it's a driver issue.

DavidPostill
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