This device worked with both laptop and desktop (as I was hoping). Then I updated the graphics card on the desktop. When the desktop is active, the monitor began to dim. It went black and then came back, then went black again to the point where it was unusable. I investigated this issue and it can be caused by a video splitter when HDMI loses signal. Connecting a desktop directly to a monitor works well, just a little awkward. Since this KVM shares the HDMI signal, this is probably a problem with the KVM. Update: Ordered a better HDMI cable. It ran from the KVM out to the monitor and the blinking stopped. The problem is with the cable, not the KVM.
CKL 4 Port KVM Switch Dual Monitor DisplayPort 4K 60Hz: Unprecedented Multi-Computer Control with Audio, USB 2.0 HUBS, and DP 1.2
11 Review
4 Port USB 3.0 Switch Selector - Pubioh KVM Switch for Mouse, Keyboard, Printer, Scanner - 2 in 4 Out Sharing Box with Switch Button and 2 USB 3.0 A to A Cables
11 Review
π HDMI 2.0 4 Port KVM Switch with 4K@60Hz, 2K@144Hz,1080P@120Hz Support, 18Gbps Bandwidth, USB 2.0 Keyboard/Mouse/Printer/Monitor/PC Selector, Audio Out/Mic In, HDR10, Dolby Vision, Dolby/DTS, HDCP2.2 Compatibility
10 Review
NEWCARE HDMI KVM Switch: 4K@60Hz, 2x1 HDMI2.0 Ports + 3X USB KVM Ports - Share 2 Computers on UHD Monitor, with Wireless Keyboard and Mouse Support - USB Disk, Printer, USB Camera Compatible
10 Review
Computer case Deepcool Matrexx 55 black
55 Review
Computer case Deepcool Matrexx 55 MESH black
64 Review
Computer case be quiet! Pure Base 500 black
32 Review
Fractal Design Define R5 - ATX Mid Tower Computer Case - High Airflow and Silent Optimized - Includes 2x Dynamix GP-14 140mm Silent Fans - Water-Cooling Ready - Black
43 Review