Information for Trident Chipset Users : Supported chipsets
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## 1. Supported chipsets

The Trident driver has undergone some more work for XFree86 3.3.2. Because of this work, all of the Trident SVGA chipsets, except the very first one, are supported by both the color and monochrome servers.

> 8800CS 8200LX 8900B 8900C 8900CL/D 9000 9000i 9100B 9200CXr 9320LCD 9400CXi 9420 9420DGi 9430DGi 9440AGi 9660XGi 9680 ProVidia9682 ProVidia9685 Cyber9382 Cyber9385 Cyber9385-1 Cyber9388 Cyber9397 3DImage975(PCI) 3DImage985(AGP)

It must be noted that the 9000i chipset is treated as a 9000 by the server. Additionally the 9100B is treated as a Trident 8900CL. Therefore it is equivalent to putting ``Chipset "tvga8900cl"`' or ``Chipset "tvga9000"`' in the `XF86Config` file. Also, note that the 9000i, 9100B have not been tested with the server, but should work in this way according to the chipset documentation.

NOTES:

- The chipset keyword has changed in XFree86 v3.3.2 and now you no longer specify 'tgui96xx' as the generic keyword, but you actually specify your chip. i.e. Chipset 'tgui9685' will set a ProVidia9685 chip.
- The new Cyber9397, 3DImage975(PCI) and 3DImage985(AGP) cards are introduced in XFree86 v3.3.2, but is still experimental, these chipsets are currently unaccelerated.
- 24bpp is all drivers remains unaccelerated, this will change in a future version, although 32bpp acceleration is supported for all TGUI based chipset except the 9440 which doesn't have the capability.
- 24/32bpp is not supported for the 9685, it will be fixed in a future version.
  Option "nolinear"

    Turn off linear mapping

  Option "linear"

    Force linear mapping. Use this if you have a non-PCI card and require 16bpp support. Note: ISA cards can only access up to 16MB of memory, so be sure you have less than this or it could cause a system hang.

  MemBase "0x???????"

    This option may be used to specify the start address of the linear frame buffer. By default for VLBus/EISA cards it is at 60MB. For the 8900CL/D, it is at 15MB.

  Option "no_mmio"

    This option turns off Memory Mapped IO support. MMIO is enabled by default when acceleration is enabled. Acceleration doesn't work well when MMIO is disabled.

  Option "tgui_pci_read_on"

    Turn on PCI burst read mode.

  Option "tgui_pci_write_on"

    Turn on PCI burst write mode. NOTE: PCI Burst modes are now OFF by default. The reason for this is the Graphics Accelerator gets upset, but we allow you to turn it back on it may improve performance, or lock up the chip with Timeouts displayed.

  ClockChip "tgui"

    Turn on programmable clocks. This is the default for TGUIs.

  Option "no_program_clocks"

    Turn off programmable clock. Use fixed VGA clocks only. Useful for fixed frequency monitors - usually used for VGA monitors - not SVGA.

  Option "noaccel"

    Turn off XAA acceleration.

  Option "xaa_no_color_exp"

    Disable color expansion.

  Option "no_stretch"

    Disable LCD stretching on Cyber 938x based chips.

  Option "lcd_center"

    Enable LCD centering on Cyber 938x based chips.

  Option "cyber_shadow"

    Enable Shadow registers, might be needed for some Cyber chipsets. (laptop machines)

  Option "tgui_mclk_66"

    Pushes the Memory Clock from its default value to 66MHz. Increases graphics speed dramatically, but use entirely at your own risk, as it may damage the video card. If snow appears, disable. Only tested on the 9440.

The original Trident chipset, 8800BR, cannot be supported as an SVGA chipset by either the color or monochrome servers. The chip is supported, however, by the ``generic'' driver for the monochrome server.

Information for Trident Chipset Users : Supported chipsets
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