User`s guide

Customizing the XF86Config File
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Configuring Monitor Types
The system graphics cards support both analog and digital monitors. The type of monitor
connected to each graphics card is specified in the “Device” sections of the
/etc/X11/XF86Config file.
Table 5-6 lists the allowable options for the MonitorLayout line. If the line is not present,
both channels default to AUTO.
The format is:
Option "MonitorLayout" "channel1type, channel2type"
where channel1type is the type (AUTO, TMDS, CRT or NONE) of monitor attached to
channel 1 (the left DVI-I connector) for this pipe, and
channel2type is the type (AUTO, TMDS, CRT or NONE) of monitor attached to channel 2
(the right DVI-I connector) for this pipe.
Example “Device” Section for Use With Two Analog Monitors
Section "Device"
Identifier "SGI SG-0"
Driver "fglrx"
BusId "PCI:23:0:0"
Option "MonitorLayout" "CRT, CRT"
EndSection
Table 5-6 Options for Monitor Layout
Monitor Type Meaning
AUTO Automatically select monitor type (default)
TMDS Digital monitor
CRT Analog monitor
NONE No monitor