C H A P T E R 4 |
Using Features |
This chapter provides Sun XVR-300 graphics accelerator feature information.
You may choose one of the three methods described in this section for video output from which to choose with the Sun XVR-300 graphics accelerator. This section lists the options:
The following section, Setting Up Video Output Methods, describes how to set up these video output methods.
When there are two Sun XVR-300 graphics accelerators in a system, they are numbered from 0 and by ones (0, 1, 2, ...)
To Set Up Single Video Output (Default) |
This enables the DVI video output "1" only. This is the default the system uses if no fbconfig commands have been given, or after fbconfig -dev nfb0
-defaults.
1. If enabled, disable doublewide or doublehigh mode.
To disable doublewide mode, type:
2. Set the desired screen resolution. For example, type:
To find all possible Sun XVR-300 graphics accelerator resolutions, type:
To Set Up Two Video Outputs Over One Large Frame Buffer |
This enables two monitor support without the use of Xinerama software. This means that the Sun XVR-300 graphics accelerator creates one wide (or tall) frame buffer, displayed across two screens using both DVI ports. This example shows doublewide mode.
1. Enable both video outputs, sharing a single frame buffer. Type:
This is implemented only in -doublewide and -doublehigh modes. For
-doublewide, xval is used to position the rightmost video output. Negative is left (overlaps with the left video output). For -doublehigh, the yval is used to position the bottom video output. Negative is up (overlaps with top video output). The default is [0, 0].
2. Set the desired screen resolution. Type:
To Set Up Two Independent Video Outputs |
This set up enables independent resolution for each video output.
Note - The use of two independent video outputs on a single board with Xinerama is not supported. The X window system and Sun OpenGL for Solaris performance might be noticeably degraded in this mode.
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1. To enable both video outputs edit the /etc/dt/config/Xservers file so that both devices appear.
The device names are /dev/fbs/nfb0a and /dev/fbs/nfb0b.
For example, as superuser, type:
Enter the Xservers file content in one long line (Solaris 10 Operating System in this example).
2. Select an independent screen resolution for each frame buffer.
To Duplicate Video Output |
1. Use the -clone option to duplicate the DVI video port "1" display to the DVI video port "2" display.
Note - Both monitor displays must have the same screen resolution. |
2. Log out of the current window system session and log back in for the change to take effect.
Use fbconfig to check the X window system (-propt) and Sun XVR-300 graphics accelerator (-prconf) device configuration values.
The fbconfig -propt option displays the values of all options (for the specified device) saved in the OWconfig file (see below for an example). These are the values the X window system will use the next time it starts on that device:
The fbconfig -prconf option displays the current Sun XVR-300 graphics accelerator device configuration (see the following code example). If certain values differ from those displayed in -propt, it is because those values have been configured since the X window system started.
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