I connected a KVM to workstations and servers but only workstations have displays.

No image displays when switching between servers connected via Aten KVM CS1316/CS1308/CL1000M/KH1516AI.

Please adjust the BIOS setting as below.

1. From the System Utilities screen, select System Configuration>BIOS/Platform Configuration (RBSU)>Advanced Options>Embedded Video Connection and press Enter.

2. Choose "Always Enabled", press F10 to save your selection and restart your server.