Table 4-1 AH391A Graphics Adapter Supported Resolutions

Resolution

Refresh Rate

DVI

VGA

1024 x 768

60, 70, 75, 85Hz

Yes

Yes

1280 x 1024

60Hz

Yes

Yes

1280 x 1024

75, 85Hz

No

Yes

1600 x 1200

60Hz

Yes

Yes

1680 x 1050

60Hz

Yes

Yes

1920 x 1200

60Hz

No

Yes

 

 

 

 

Restrictions and Limitations

This section provides information on the limitations and restrictions of the HP PCI AMD Radeon 7000 Graphics Adapter hardware and software.

No Accelerated 3D Support

The HP PCI AMD Radeon 7000 Graphics Adapter does not support accelerated 3D (e.g. OpenGL).

Multiple Colormaps

Multiple installed colormaps in depth 8 PseudoColor visual are not supported. The HP PCI AMD Radeon 7000 Graphics Adapters support only one installed colormap at one time. Exceeding this limit will cause colormap “flashing”.

Applications should not install or uninstall colormaps themselves. The window manager should perform these actions. However, the application is responsible for providing the window manager with hints as to which colormaps to install or uninstall. You provide this information using the following Xlib function:

XSetWMColormapWindows (). This function sets the WM_COLORMAP_WINDOWS property for a given window.

Default Visual Information

The HP PCI AMD Radeon 7000 Graphics Adapter can only support one visual type at one time. Supported default visual types are 8–bit PseudoColor and 24–bit TrueColor. The default depth and visual class is 24–bit TrueColor. To change the default visual, you must edit the Xserver's configuration file which is located at:

/etc/X11/Xf86Config.

The depth is set in the Screen section of the Xf86 configuration file. There also needs to be a Display subsection with the correct depth. For example, the following lines will select a 24–bit default visual:

Section “Screen” Identifier “Screen 0” DefaultDepth 24

[…]

SubSection “Display” Depth 24

[…] EndSubSection SubSection “Display” Depth 8

[…]

24 HP-UX Configuration