disable the hardware cursor.
disables use of the pixmap cache. Might be useful if drawing errors occur.
completely disables acceleration. Usually not recommended.
stall the PCI bus while the graphics engine is busy. While this might give slightly higher performance, you run the risk of disturbing other devices that are waiting to be serviced by the processor. This option may cause problems with SCSI cards, serial connections, sound cards, etc.
needed for the Diamond Fire GL 3000 in order to use the primary output on that card. The second screen is currently not supported.
Run the memory at a higher clock. Useful on some cards with display glitches at higher resolutions. But adds the risk to damage the hardware. Use with caution.
Composite sync on green. Possibly useful if you wish to use an old workstation monitor. This feature is only implemented for Permedia 2 based boards (Permedia 2v doesn't have this capability). Default is to use positive sync polarity. As many SOG monitor want negative sync polarity, you'll have to play around with the "-HSync" and "-VSync" Modeline flags if you own such a monitor.