E-Edid Transmission With Cache Function - G&D DLVision-DP Handbuch

Background information

E-EDID transmission with cache function

The KVM Extender reads out the E-EDID profile (Enhanced Extended Display Identifica-
tion Data) of the monitor connected to the user module and transmits it to the com-
puter.
The E-EDID profile contains, for example, information about the preferred resolu-
tion and the supported frequencies of the monitor.
In order that the computer connected to the computer module ( )
DL-Vision-DP-CPU
can already access the features of the remote monitor during booting, the KVM
extender contains a cache function. Even if the computer module or the user mod-
ule are switched off or if the devices are not interconnected, the properties of the
most recently connected monitor or a default data block are provided in the KVM
extender.
The monitor's E-EDID information is usually transmitted one-to-one to the com-
puter. In case, the KVM extender determines that the display cannot be read with-
out errors or that the entries are invalid, the information is completed or corrected (if
possible).
44 · G&D DL-Vision-DP