The KVM switch isn't compatible with HDMI-DP or USB-C to USB audio devices.
The KVM switch isn't compatible with HDMI-DP or USB-C to USB audio devices.
I see a pattern with the USB problems. On my desktop, all peripherals function smoothly—mouse, keyboard, headset, webcam. On my laptop, only two out of three work consistently, depending on which device connects first. The USB-A ports are all USB3.0, and the included cables also match that standard. On my Dell Precision 5680, the ThunderBolt ports support PowerDelivery USB Type-C and display functionality, but they don’t connect properly with the USB-A dongle I use. The laptop always shows up as charged, which might explain why the issue isn’t immediately obvious.
With the powered hub I still faced problems because my laptop couldn't handle all USB devices. I had to constantly switch my mouse between the KVM and the hub whenever I needed to change. I thought the issue might be related to the powered hub, but it didn't fix the problem. I wondered if a single USB-A 3.0 cable could provide enough speed for four devices in use at once. Probably, my setup consumes too much bandwidth—having a programmable RGB keyboard, a gaming mouse with many buttons, a headset with 7.1 surround sound, and a webcam at 1080p. With KVM switches I usually get a poor-feeling keyboard and mouse, almost like a rarely used printer. Now I’m also experiencing issues on my desktop, even with the HDMI 2.0 version that came yesterday. It seems the internal performance dropped because they had to downgrade from DP 1.4 to HDMI 2.0, possibly affecting USB speeds too. Every time a new video loads on YouTube my keyboard cuts out briefly. It makes me doubt if KVM switches are truly suitable for my needs, and it would be better to upgrade to a larger desk and additional peripherals instead. Or maybe the company I’m buying from is just offering very low-quality products, like most on Amazon these days.