An update.
(Just because I said "thanks for participating" in the previous post, didn't mean I was finished with this project)
I got some "certified premium" cables and the 1x4 splitter from Monoprice. The splitter has a two-position EDID switch on it. STD means replicate the EDID from the device on port 1 to all ports, TV means an EDID of 1080p@60Hz with LPCM 2CH audio on all ports. With my 4K TV on port 1, either setting gives the same results of normal operation of the port 1 TV, and a black screen with audio on the 1080 TVs. I'll be contacting Monoprice for help, most likely a refund, or an exchange if they have something else that will work.
I found a device that seems available only overseas http://www.cypeurope.com/store/stor...l-outputs-&-HDCP-Converter-4K-HDCP2.2-HDMI2.0 which looks like it would do exactly what I need of taking a 4k signal and splitting to two outputs, one pass thru and the other scaled down, but the price is ridiculous.
Seems I'm stuck for now with using my old 1x4 splitter for 1080 everywhere, and swapping to a dedicated cable when 4k is needed.
(Just because I said "thanks for participating" in the previous post, didn't mean I was finished with this project)
I got some "certified premium" cables and the 1x4 splitter from Monoprice. The splitter has a two-position EDID switch on it. STD means replicate the EDID from the device on port 1 to all ports, TV means an EDID of 1080p@60Hz with LPCM 2CH audio on all ports. With my 4K TV on port 1, either setting gives the same results of normal operation of the port 1 TV, and a black screen with audio on the 1080 TVs. I'll be contacting Monoprice for help, most likely a refund, or an exchange if they have something else that will work.
I found a device that seems available only overseas http://www.cypeurope.com/store/stor...l-outputs-&-HDCP-Converter-4K-HDCP2.2-HDMI2.0 which looks like it would do exactly what I need of taking a 4k signal and splitting to two outputs, one pass thru and the other scaled down, but the price is ridiculous.
Seems I'm stuck for now with using my old 1x4 splitter for 1080 everywhere, and swapping to a dedicated cable when 4k is needed.