Wanted to chime in with my specific setup and what appears to have resolved the HDMI dropouts. Samsung Q60R PS4 Pro HDMI over Catalyst AV 1080P HDBaseT extender on Cat5e cable HDBaseT extender powered at transmitter, passive at receiver This setup worked flawlessly on a 2012 Samsung 1080P 55" set. The Q60R bluntly refused to connect at all initially. Here's the steps I took. 1. Reboot PS4 in safe mode (Hold power button until it beeps a second time) 2. Set PS4 resolution to 1080P (since my extender is 1080P - I understand I'm not getting the 4k and need to upgrade my extender) 3. Reboot PS4 This got the PS4 to connect, but after 20 or so minutes would start to periodically drop the connection, showing a spinner on a black screen followed by the 'check source' screen. Through trial and error I found that the following worked to resolve the intermitent disconnects: 4. Turn off HDR on the Playstation 4 video options. It's frustrating that my 7 year old mid-range (at the time) TV handled this just fine out of the box, but understand I'm forcing a 1080P signal into a 4k world. However, the "smart" input selection on the Samsung is infuriating at best, and between this and the infuriating ads in the UI, I'll likely be returning this set and switching to another brand.
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