Information for Rendition Users : XF86Config Option
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5. XF86Config Option

Option "sw_cursor"

Disables use of the hardware cursor.

Option "overclock_mem"

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.

DacSpeed "MHz"

Set custom ramdac limit. We have currently no way of knowing if the v2x00 chip is a v2100 (170MHz) or v2200 (203MHz and 230MHz) so we assume the lowest. Use this option to manually override the value.

Option "FramebufferWC"

If writecombine is disabled in BIOS, and you add this option in in configuration file, then the driver will try to request writecombined access to the framebuffer. This can drastically increase the performance on unaccelerated server. Requires that "MTRR"-support is compiled into the OS-kernel.

Option "NoDDC"

Disable probing of DDC-information from your monitor. This information is not used yet and is only there for informational purposes. This might change before final XFree86 4.0 release. Safe to disable if you experience problems during startup of X-server.


Information for Rendition Users : XF86Config Option
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