The following keywords control options not set through the configuration utility, and require manual editing of the Xconfig file.
BackBuffer This entry tells the X server to allocate off-screen memory for a BackBuffer.
CursorAdjustX
CursorAdjustY If the hardware cursor does not position correctly over the X Window screen, CursorAdjustX and CursorAdjustY allow you to specify a delta (number of pixels) to adjust the cursor left or right.
CursorScreenOne In a multiple screen configuration, this setting constrains the cursor to screen 0.
NoBackingStore This turns off backing store. Backing store is a server feature that allows programs to create complex drawings and have the server automatically handle exposure requests, thus preventing lengthy re-draw cycles. Backing store uses system memory to hold the window contents and can actually slow down the system if there is limited memory.
NoCursorWrap In a multiple screen configuration, this setting prevents the cursor from wrapping from screen 1 to screen 0.
NoFontCache This turns off font caching.
NoKeyboard This setting disallows keyboard input.
NoLEDs No LED processing is done by the server.
NoPixmapCache This turns off pixmap and stipple caching.
NotPrimaryMonitor No console processing is done for Virtual Terminal Support. This is normally used when X is run on a graphics card that is not driving the console.
Option <string> This specifies a special option passed to the server. It might specify the card model or a specific feature not typically used. Normally configX inserts the correct options in the Xconfig file.
Option HardwarePex Add this line to the Xconfig file to use the Hardware Z Buffer on the Matrox MGA Impression Plus graphics card. This file entry must immediately follow the Driver MGA entry.
Option NoHardwareCursor Add this line to disable hardware cursor support. This file entry must immediately follow the Driver entry.
RemapCursorPad This configuration causes the X server to send back different keycodes for the keypad arrow keys and cursorpad arrow keys. This is a minor violation of the X protocol, but it allows clients to differentiate between these keys.
SnfFormat <number> <number> <number> <number> Metro-X X11.5 can read X11.4 SNF (Server Natural Format) fonts. Since there is no standard for SNF fonts, the following four numbers can be adjusted to read most SNF fonts. The four number parameters represent the following values, normally built into the server at compile time:
For example, to read SCO SNF fonts, add this line to the Xconfig file:BITMAP_BIT_ORDER IMAGE_BYTE_ORDER GLYPHPADBYTES BITMAP_SCANLINE_UNIT
Or, to read SNF fonts compatible with X11 R4 from Interactive Systems Corporation, add this line to the Xconfig file:SnfFormat 1 0 1 1
SnfFormat 1 1 4 4
Terminate Terminate causes the server to exit when the last client disconnects. Normally xinit kills the X server when the last client disconnects, before the server can reset.
Trace <number> This prints additional debugging information.
VideoRam <number> This specifies the amount of video memory on the graphics card, specified in terms of 1024-byte units (with one megabyte equal to a value of 1024). The X server usually detects how much memory is on the card.
VisualClass <number> This uses the default VisualClass from /usr/include/X11/X.h, and is based on the following table:
On monochrome monitors the line
should be added to the Xconfig file.VisualClass 1
