A P P E N D I X D |
XVR-50 Graphics Accelerator |
This appendix discusses the XVR-50 Graphics Accelerator Topics covered are:
The XVR-50 graphics accelerator is a 24-bit on-board PCI-based graphics frame buffer. The XVR-50 graphics accelerator offers the following features:
TABLE D-1 lists the monitor video formats supported by the XVR-50 graphics accelerator.
To get a list of available screen resolutions for your display device, type:
If you have selected a resolution where support for this resolution cannot be verified, fbconfig displays the following output:
SUNWpfb_config: Cannot verify that selected resolution is a supported video resolution for this monitor |
TABLE D-1 lists video formats supported by the HD15 port.
Note - The XVR-50 graphics accelerator video composite sync is an XOR composite sync. |
The default resolution is dictated either by EDID information from the connected monitor or by the console resolution that is set (see TABLE D-1). When no monitor is connected to supply EDID information, the default resolution is 1024 x 768 @ 75 Hz.
The Sun OpenGL 1.5 for Solaris software supports the XVR-50 graphics accelerator through software implementation.
The XVR-50 graphics accelerator man pages describe how you can query and set frame buffer attributes such as screen resolutions and visual configurations.
Use the fbconfig(1M) man page for configuring all Sun graphics accelerators.
SUNWpfb_config(1M) contains XVR-50 device-specific configuration information. To get a list of all graphics devices on your system, type:
This example shows a list of graphics devices displayed:
Device-Filename Specific Config Program --------------- ----------------------- /dev/fbs/pfb0 SUNWpfb_config |
Type the fbconfig -help option to display the attributes and parameters information of the man page.
To access the fbconfig man page, type:
To access the XVR-50 graphics accelerator man page, type:
The default system uses a resolution suggested by the monitor as long as the monitor is connected to power and connected to the XVR-50 video port. This is the default the system uses if no fbconfig commands have been given, or after entering fbconfig -dev pfb0 -defaults.
To manually set up a video output resolution, do the following:
1. Set the desired screen resolution. For example, type:
To find all possible XVR-50 graphics accelerator resolutions, type:
1. Set or reset the default color depth.
To set 8 or 24 as the default color depth, type /usr/sbin/svccfg.
/usr/sbin/svccfg -s x11-server setprop options/default_depth=8 /usr/sbin/svccfg -s x11-server setprop options/default_depth=24 |
The default color depth is 24.
2. Log out and then log back in for the change to take effect.
Type fbconfig to check the X window system (-propt) and XVR-50 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:
host% fbconfig -dev pfb0 -propt -- Graphics Configuration for /dev/fbs/pfb0 --- OWconfig: machine Video Mode: not set Screen Information: Fake8 Rendering: Disable Gamma Correction: Disable |
fbconfig -prconf option displays the current XVR-50 graphics accelerator device configuration (see below for an 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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