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Customizing the XF86Config File
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Configuring a System for External Genlock or Framelock
External genlock and framelock may be used on systems with at least one optional
ImageSync board.
To configure your system to receive an external genlock or framelock signal you must run
the
setmon
command with the appropriate options.
Before running setmon, use
printenv DISPLAY
to ensure that the DISPLAY
environment variable is set to the local system (for example, :0.0). If it is not, use
setenv
DISPLAY :0.0
to change it (substituting other numbers for :0.0 if appropriate).
To set the system for genlock, execute the following command:
# setmon -p
pipenumber
-g
graphicsformat
where pipenumber is the pipe to which this setting should be applied, and
graphicsformat is one of the timings (modes) listed in the “Monitor” section of the
/etc/X11/XF86Config
file.
To set the system for framelock, execute the following command:
# setmon -p
pipenumber
-L
videoformat
graphicsformat
where pipenumber is the pipe to which this setting should be applied,
videoformat is the input video format to be used as a framelock source, and
graphicsformat is one of the framelock-certified timings (modes) listed in the “Monitor”
section of the
/etc/X11/XF86Config
file that is compatible with the chosen input
video format (Table 5-5 on page 142 provides a list of compatible formats).
Note:
The default behavior of
setmon
is to load the new format for the current session
only and to prompt for input to determine if the format should be saved as the default.
To save the new format as the default you must be logged in as root.
For more information about the
setmon
command, see the
setmon
man page (
man
setmon
).
Note:
Framelock-certified timings will include an “f” appended to their name (i.e.,
“1280x1024_5994f” is certified for NTSC (525 line) video timing).