Red Hat ENTERPRISE LINUX 3 Reference Manual page 111

Chapter 7. The X Window System
Warning
Be careful if manually editing values in the
values can damage or destroy a monitor. Consult the monitor's documentation for a listing of safe
operating parameters.
The following are commonly entries used in the
— Specifies a unique name for this
• Identifier
— An optional parameter which specifies the vendor of the monitor.
• VendorName
— An optional parameter which specifies the monitor's model name.
• ModelName
— An optional parameter which specifies, in millimeters, the physical size of the
•
DisplaySize
monitor's picture area.
— Specifies the range of horizontal sync frequencies compatible with the monitor in
• HorizSync
kHz. These values help the XFree86 server determine the validity of built in or specified
entries for the monitor.
— Specifies the range of vertical refresh range frequencies supported by the mon-
• VertRefresh
itor, in kHz. These values help the XFree86 server determine the validity of built in or specified
entries for the monitor.
Modeline
— An optional parameter which specifies additional video modes for the monitor at
• Modeline
particular resolutions, with certain horizontal sync and vertical refresh resolutions. Refer to the
man page for a more detailed explanation of
XF86Config
• Option " option-name "
tion. Replace
option-name
man page.
7.3.1.8.
Device
Each section configures one video card on the system. While one
Device
minimum, additional instances may occur for each video card installed on the machine.
The best way to configure a video card is to configure X during the installation process or by using
the X Configuration Tool. For more about using the X Configuration Tool, refer to the chapter titled
X Window System Configuration in the Red Hat Enterprise Linux System Administration Guide.
The following example illustrates a typical
Section "Device"
Identifier "Videocard0"
Driver "mga"
VendorName "Videocard vendor"
BoardName "Matrox Millennium G200"
VideoRam 8192
Option
EndSection
The following entries are commonly used in the
— Specifies a unique name for this
• Identifier
— Specifies which driver the XFree86 server must load to utilize the video card. A list
• Driver
of drivers can be found in
package.
— An optional entry which specifies extra parameters for the sec-
with a valid option listed for this section in the
Device
"dpms"
/usr/X11R6/lib/X11/Cards
section of
Monitor /etc/X11/XF86Config
section:
Monitor
section. This is a required entry.
Monitor
Modeline
section for a video card:
section:
Device
section. This is a required entry.
Device
, which is installed with the
. Inappropriate
Modeline
entries.
XF86Config
section is the
Device
hwdata
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