








 Information for NVidia NV1 / SGS-Thomson STG2000, Riva 128 and Riva TNT Users

                           David McKay, Dirk Hohndel

                                5 November 1998



1.  Supported hardware

This driver supports good acceleration for both the NV1/STG2000 as well as the
Riva128. It is known to work on PCI and AGP versions of the Riva128.  The Riva
TNT was added to this driver and is not yet as well accelerated as it could be.
Still, the server is very usable.


2.  Notes

   o On the NV1/STG2000, the driver does not support the virtual desktop fea-
     tures of xfree86.  This is because the NV1 does not have the necessary
     hardware to support this feature. If you want to change resolutions, you
     will have to modify your config file. Comment out all but the mode you
     wish to use.

   o The generic VGA16 server will not work with the NV1.  For this reason
     XF86Setup cannot be used to configure the server for NV1 based cards.  Use
     xf86config instead.  Select `Diamond Edge 3D' as your board, and select
     only ONE mode for each of 8bpp and 16bpp.  Do not select a virtual desk-
     top.  Also, make sure you don't select a RAMDAC or clock chip. This does
     not apply if you own a Riva128 or RIVA TNT card, as the VGA16 server works
     just fine on that.

   o Both the NV1 and the Riva128 only support a 555 RGB Weight in 16 bpp, the
     hardware does not do 565. If you run into problems with some window man-
     agers in 16bpp, try putting a Weight 555 in the Display section.

   o 24 bpp is not supported.

   o In some modes the hardware cursor gets out of sync with the display.  Use
     Option "sw_cursor" to work around this problem.

   o There are modelines that confuse the Riva128 chip. This results in a
     greenish display. Slightly modifying the modeline usually fixes the prob-
     lem. In most cases all that is needed is to reduce the HTotal. You can use
     xvidtune to do that.

   o The low maximum dot clocks for the Riva 128 have been fixed. The driver
     should now utilize the Riva 128 to its full capabilities.






Information for NVidia NV1 / SGS-Thomson STG2000, Riva 128 and Riva TNT Users 1





Information for NVidia NV1 / SGS-Thomson STG2000, Riva 128 and Riva TNT Users 2



3.  Authors

   o David McKay

   o David Schmenk <dschmenk@nvidia.com>

   o Dirk Hohndel <hohndel@XFree86.org>

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Information for NVidia NV1 / SGS-Thomson STG2000, Riva 128 and Riva TNT Users 3





































































                                   CONTENTS



1. Supported hardware ....................................................... 1

2. Notes .................................................................... 1

3. Authors .................................................................. 2















































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