It is recommended that you generate an XF86Config file using the
`xf86config' program, which should produce a working
high-resolution 8bpp configuration. You may want to include mode
timings in the Monitor section that better fit your monitor
(e.g 1152x900 modes). The driver options are described in detail in
next section; here the basic options are hinted at.
For all chipsets, a Clockchip "cirrus" line in the
Device section can be useful. This allows the use of any dot
clocks, instead of one out of the fixed set of dot clocks supported
by the driver. This is required if you want a 12.6 MHz dot clock for
low-resolution modes.
If graphics redrawing goes wrong, first try the
"no_bitblt"
option if your chip has the BitBLT engine, if that doesn't work, try the
"noaccel"; option, which disables all accelerated
functions. The "no_imageblt" option may be sufficient.
In order to be able to run at a depth of 16bpp and 32bpp, and to improve
performance at 8bpp, linear addressing must be enabled. This is generally
possible on 543x local bus cards, and if you have less than 16Mb of system
memory, on local bus 542x cards and ISA 543x cards. You must specify
the "linear" option and possibly a Membase
address. See the following sections for a detailed description.
Lastly, on the 543x, it is advisable to use the "mmio"
option in the Device section for better acceleration (this might also apply
to the 5429, which has not been tested).
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