Hey all, I have the Level1Techs Dual-Port KVM with DP 1.4. It was paired with DP 1.2 cables powering 2 1440p 24" monitors and worked fine, never really “pushed” the DP 1.4 bandwidth. Then I picked up the Acer Nitro XZ2 Ultrawide VA 3440x1440 monitor. It supports 144hz, but when attempting to use via a GTX 1070 with 10-bit color and 144hz enabled, the screen would go black. I then realized I needed to upgrade to some DP 1.4 cables, however now the following happens when attempting this combo:
It will randomly show perfectly square rectangles of TV static-like images/artifacts in certain corner of the monitors.
That all being said, running the same newly purchased DP 1.4 cable from the monitor to GPU works @ 10 bit 144hz no problem. Not sure what all I can do, but this does only happen when using the KVM. I am still using DP 1.2 cables for my secondary monitor… could that be linked in anyway?
Before you ask, yes, I did trace cables, and its a full DP 1.4 connection from ultrawide → KVM → GPU.