Configuring video adapters

Configuring unsupported adapters

If your graphics adapter is not on the list of supported adapters and is not compatible with the VESA driver:

Check your adapter's documentation to see if it is compatible or uses the same chip set as a supported adapter. If your adapter is compatible, select the supported adapter.
If the system is able to determine that the adapter in the system is compatible with the VBE (Video BIOS Extension) 1.2 or 2.0 standard, you will be able to select VESA VBE mode. This driver will operate the adapter in high resolution modes without acceleration.
If your adapter is not compatible with one of the supported adapters or chip sets, and does not support VBE mode, try selecting the IBM VGA adapter using 640x480 with 16 colors. This will usually get your graphics system up and running, but it does not provide access to higher resolutions or any enhanced capabilities of your graphics adapter.

NOTE: You may also be able to adjust an existing grafinfo file to fit your graphics adapter. However, if you copy a compatible grafinfo file and try to adapt it, you may have to supply details about your adapter not commonly found in adapter user documentation (for example, the coordinates of off-screen memory). Further information about developing graphics drivers and grafinfo files can be found in Developing NFB graphics adapter drivers, which is included with the Hardware Developer Kit.