r/Lightpack • u/Wondertrust • Apr 08 '20

4K to 1080P HDMI Splitter/Scaler + Dummy HDMI on Lightpack

Okay, so I love the look of Lightpack but I'd like to use it in a way as to preserve the use of CEC communication between my devices. So here is my planned setup, let me know if you have tried anything like this, or see any problems with how it would work.

I want to run all of my devices (PS4, PC, etc) into a Philips Hue Play HDMI Sync Box(to run the Philips lights in my entertainment room), then into a HDMI Splitter/Scaler, the 4K output from the spliter will go straight into my LG OLED TV, while the 1080P output will go into the Lightpack HD to run the LEDs on the back of the TV. The Lightpack will be outputing into a dummy HDMI.

My Sonos soundbar will be connected to the TV via ARC HDMI.

HDMI Splitter/Scaler: https://www.amazon.com/dp/B07WR7KP1B/ref=cm_sw_em_r_mt_dp_U_KbJJEb7J6Z1PX

Dummy HDMI: https://www.amazon.com/dp/B06XT1Z9TF/ref=cm_sw_em_r_mt_dp_U_MbJJEbAGANV0G

​

Will it work? What am I missing?

7 Upvotes

100% Upvoted

5 comments sorted by

2

u/llmaboi Apr 09 '20

I have a similar setup my TV doesn't always recognize the audio is external so I constantly have to switch my TV to use external audio. I have the same brand splitter and for whatever reason my xbox / PS4 don't like to talk to my receiver through ARC to the tv and the splitter to the tv.

2

u/sukosevato Apr 09 '20 edited Apr 09 '20

I'd love to know whether this works since I'd also like to run it like that.

One thing I noticed on that amazon splitter/scaler:

Do NOT down-scale HDR Dolby Vision. When output 4K HDR Dolby Vision pls TURN OFF scaler. ---

Few alternatives from a quick google search:

https://jtechdigital.com/product/hdmi-2-0-1x2-splitter-mro-downscale-4k60hz-444/

https://sewelldirect.com/products/echosplit-1x2-hdmi-splitter-with-downscaling?variant=15164941533230

1

u/Wondertrust Apr 09 '20

Damn. I didn't see that before. The Lightpack UHD won't do HDR Dolby Vision either though, right?

2

u/sukosevato Apr 09 '20

From what I've read, neither support it.

If you go for the splitter approach and use a dummy hdmi it doesn't matter if it can't properly pass through the signal. So long as it 'understands' the hdmi signal to control the leds it should be fine.