I have had a 4K for a while now but it has sat unused for a good chunk of time when it stopped working. I decided it had spent enough time gathering dust so I had another go trying to get it working only to find it works perfectly fine when I connect the HDMI to the on-board graphics HDMI port. It refuses to connect to PiPlay when I try and connect it to either to the 1080ti cards I have. It used to work great with these 1080ti cards. Nothing has changed with the hardware configuration of my machine since it used to work.
I have tried disabling SLI. The Nvidia drivers and PiMax drivers and firmware have all been updated to the latest versions but no joy.
Does anyone have any idea why my 4K will not work with my Nvidia cards?