Kontron KTLX800-pITX - Manual (Page 11)

KTD-S0023-A Page 8 Graphics Interface
KTLX800/pITX Software Guide
3.3.2 DisplayID TM Restrictions
Depending on the graphic controller not all features can be used. The following table shows the most im-
portant restrictions.
Restrictions for KTLX800/pITX
Panels with dual or quad clock not supported (2 or 4 Pixel per Clock)
Variable power sequencing not supported
Many displays center the picture automatically using the DE-signal. In general the picture is centered
automatically in horizontal direction but some displays also center the picture vertically using this signal.
Only for displays that can be driven with a
fixed mode timing a displacement of the picture is possible. For
these information please check the datasheet. With the KTLX800/pITX board the parameters for the typical
detailled timing out of the datasheet might not be correct for centering the picture. In general the exact
positioning of the picture has to be obtained experimental.
3.3.3 LCD Panel Selection
The choice of an LCD display is basically defined by two parameters.
Parameter Value
Pixel per Clock (Channels) 1
Pixel Clock Range 20 MHz - 135 MHz
Currently this leads to a maximum resolution of
1024 Pixel
With the AMD graphic driver it is not guaranteed that every resolution can be achieved. KONTRON does not
guarantee the correct function of the board for untypical resolution. In principal the use of DisplayID
TM
allows realizing every special display resolution. For this a valid DisplayID TM dataset must be written to the
onboard EEPROM. Additionally the BIOS Setup entry
Advanced Settings/Display Configuration/Flat Panel Type
must be set to Auto.
Many displays with a resolution up to XGA (1024 x 768) have a digital (TTL) interface. KONTRON offers a
special adapter to connect these displays to the LVDS interface (KAB-ADAPT-LVDStoTTL with part number
61029).