
When connected to an NVIDIA 30 series GPU and an LG 24MD4KL Ultrafine Monitor, the computer refuses to boot. The only way to get a picture is to turn it off, wait for the computer to boot up, then plug it in and adjust the refresh rate until the monitor wakes up. From my research this is due to a bad power connection in the cable - pin 20 gets power from the GPU side when it shouldn't. I didn't want to go through this problem on every boot so I'm sending this cable back.