I have two Dell U2414H monitors that are daisy chained via display port 1.2. Now that I am working from home, I would like to connect these monitors to both my home pc and work laptop. Work was kind enough to buy me a display port KVM switch but then the laptop only has HDMI input, no display port. I tried purchasing a DisplayPort to HDMI cable but it didn't work. After returning it, I noticed it says uni-directional on it. Do I need to get a bi-directional cable in order to make this work? Or does this simply not work? The bi-directional cables are a bit more expensive and I would hate to make another purchase just to have to return it again.