Note that the Windows driver runs a series of diagnostics at startup and automatically downclocks the AGP bus and turns off other options like FastWrite as needed to obtain reliable operation. The marketing folks called it SmartGart : http://ati.amd.com/products/catalyst/SmartGart-FAQ.pdf
If your system runs reliably with Windows that means it should be possible to run it reliably with Linux as well, but the Windows driver stack automatically steps down AGP settings as needed and you'll need to do that manually with Linux drivers. When you see one Linux driver run reliably and another not, that usually means the *defaults* for AGP settings are different between those drivers.
If your system runs reliably with Windows that means it should be possible to run it reliably with Linux as well, but the Windows driver stack automatically steps down AGP settings as needed and you'll need to do that manually with Linux drivers. When you see one Linux driver run reliably and another not, that usually means the *defaults* for AGP settings are different between those drivers.
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