Lenovo Europe, Middle East, and Africa
Hardware Announcement ZG09-1016
Lenovo is a registered trademark of Lenovo Corporation
3
Appropriate video adapter hardware and software must be installed in the attaching
system unit.
Monitors are compatible with popular Lenovo PC system units.
VESA Display Data Channel (DDC)
This monitor supports the DDC protocol to command interface (CI) level. Basic
configuration information can be passed to a system unit from its attached monitor.
Often referred to as Plug and Play, the protocol enables a DDC-enabled system unit
to automatically configure the video adapter to drive the attached monitor at its
optimum display mode without end-user intervention. For best use, the attaching
system unit must also be hardware- and software-enabled for DDC operation.
The capabilities of the monitor are held in nonvolatile monitor memory in an
encoded format. The data is received from the monitor by the system unit during
boot-up and system configuration.
The EDID data sent by the monitor to the attached system unit also includes the
monitor's serial number and other identification information. This can be held in
the system unit until requested; for example, by a department LAN administrator
needing to assess the location of all equipment connected to the LAN.
Date information transmitted in the monitor EDID data conforms to VESA EDID
standard V2. This requires the year of manufacture (YOM) to be stored in a one-byte
field as an offset from 1990 as derived from the following equation:
Value stored = (YOM - 1990)
Year of manufacture Value stored
2004 14
2005 15
2006 16
An international industrial standard by the name of DDC/CI was developed by
VESA to expand upon an existing DDC standard. This new standard adds control
functionality without the need for additional connections.
The main advantage of DDC/CI is its bi-directional communication structure between
PC and monitor, which does not require a separate cable. All data are transmitted
in both directions via the video graphics card and the standard VGA or DVI signal
cable. This capability allows for functions like monitor control, adjustments, and
diagnostics to be conducted via software using the mouse and keyboard. In an
enterprise or firm, this capability also allows the potential of remote diagnostics
and asset management by a technician via the LAN. Customer-supplied software
is needed to implement these functions. For effective power management, the
attaching system unit must also be hardware- and software-enabled for DPMS
operation.
HelpWare
HelpWare® is a comprehensive set of service and support offerings for a more
productive and enjoyable computing experience. Many HelpWare services are
included with the purchase of your Lenovo system, and additional services are
available from the HelpWare support family.
Technical characteristics
Feature LCD monitor
Monitor size 18.5 inch (470 mm)
Optimum resolution 1366 x 768
Maximum resolution 1366 x 768
