HDMI display on/off via DisplayPort adapter?

5 replies

Potentially similar to /thread/displayport-1-2-to-hmdi-2-0-4k-screen-doesnt-wake-up-after-sleep-mode/
I would like my HDMI display to sleep when my computer does, and wake when it does as well. As far as I can see, this would require either a DisplayPort aux to HDMI conversion of CEC information or the adapter itself to output CEC commands.i have the CAC-1070 and thus the underlying PS176 chip, which does support this functionality [at least from its spec sheet].

So is this possible?

Hi Variable,

Yes that should be possible, but i think you will need to have a DP1.3 output on the PC System ...
DisplayPort Receiver Capability Supports CEC-Tunneling-over-AUX as per DP 1.3 Standard

I do, it is an RX480, so it should support DP 1.3.

then you should be good to go ...

Is it possibly that Windows 10 does not support output of CEC commands upon wake/sleep? Have you had this working? 

Thanks!
-Eric

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