KVM switch resolution issues are often caused by cheap adapters or monitor limits, not the KVM. Check your monitor's manual for true specs; manufacturers may advertise misleading refresh rates. Use quality adapters from the Avico Approved Adapter List. Adjust display settings in Windows and Mac to. Just bought a KVM switch for me to easily switch between my work laptop and my personal desktop. I tried. I have a desktop machine with Ubuntu 22. 3 LTS and a Dell P2715Q monitor. When I plug the monitor directly to the computer, I can use up to the maximum resolution of 3840 x 2160. 3 machine via an Iogear displayport KVM switch. When I run "Preferences->Display", the "Resolution" choices range from 1920x1200. Namely, I have a new MacBookPro and a Windows PC both connected to the KVM which is in turn connected to a Samsung G9.
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