KVM displays blank screen when connected to HP ProLiant server

Question

KVMXXX displays blank screen when connected to HP ProLiant server

Issue

KVMXXX units display a blank screen when connected to the rear VGA port of an HP ProLiant server. In many cases, the KVM will fully function when connected to the front VGA port, if available.


Product Line

KVMXXX model KVM's - KVM0108A, KVM0116A, KVM0216A, KVM1116P, KVM2116P, KVM2132P
 

Environment
 
All serial numbers
All firmware versions as noted

Cause

The issue is linked to an older version of server BIOS having a conflict with the Extended Display Identification Data (EDID) supplied by the KVM. 
 

Resolution

Disabling one of the VGA ports, or upgrading server BIOS to the most recent revision appear to resolve this issue. Schneider Electric will not be able to assist with updating server BIOS - it is recommended before installing anything to a server that you speak with the server manufacturer first.