227 lines
8.1 KiB
Groff
227 lines
8.1 KiB
Groff
.\" $XFree86: xc/programs/Xserver/hw/xfree86/drivers/savage/savage.man,v 1.7 2003/11/09 20:43:57 dawes Exp $
|
|
.\" shorthand for double quote that works everywhere.
|
|
.ds q \N'34'
|
|
.TH SAVAGE __drivermansuffix__ __vendorversion__
|
|
.SH NAME
|
|
savage \- S3 Savage video driver
|
|
.SH SYNOPSIS
|
|
.nf
|
|
.B "Section \*qDevice\*q"
|
|
.BI " Identifier \*q" devname \*q
|
|
.B " Driver \*qsavage\*q"
|
|
\ \ ...
|
|
.B EndSection
|
|
.fi
|
|
.SH DESCRIPTION
|
|
.B savage
|
|
is an __xservername__ driver for the S3 Savage family video accelerator chips. 2D, 3D, and Xv acceleration
|
|
is supported on all chips except the Savage2000 (2D only). Dualhead operation is supported on MX, IX, and
|
|
SuperSavage chips. The
|
|
.B savage
|
|
driver supports PCI and AGP boards with the following chips:
|
|
.TP 16
|
|
.BI Savage3D
|
|
(8a20 and 8a21) (2D, 3D)
|
|
.TP 16
|
|
.B Savage4
|
|
(8a22) (2D, 3D)
|
|
.TP 16
|
|
.B Savage2000
|
|
(9102) (2D only)
|
|
.TP 16
|
|
.B Savage/MX
|
|
(8c10 and 8c11) (2D, 3D, Dualhead)
|
|
.TP 16
|
|
.B Savage/IX
|
|
(8c12 and 8c13) (2D, 3D, Dualhead)
|
|
.TP 16
|
|
.B SuperSavage/MX
|
|
(8c22, 8c24, and 8c26) (2D, 3D, Dualhead)
|
|
.TP 16
|
|
.B SuperSavage/IX
|
|
(8c2a, 8c2b, 8c2c, 8c2d, 8c2e, and 8c2f) (2D, 3D, Dualhead)
|
|
.TP 16
|
|
.B ProSavage PM133
|
|
(8a25) (2D, 3D)
|
|
.TP 16
|
|
.B ProSavage KM133
|
|
(8a26) (2D, 3D)
|
|
.TP 16
|
|
.B Twister (ProSavage PN133)
|
|
(8d01) (2D, 3D)
|
|
.TP 16
|
|
.B TwisterK (ProSavage KN133)
|
|
(8d02) (2D, 3D)
|
|
.TP 16
|
|
.B ProSavage DDR
|
|
(8d03) (2D, 3D)
|
|
.TP 16
|
|
.B ProSavage DDR-K
|
|
(8d04) (2D, 3D)
|
|
.SH CONFIGURATION DETAILS
|
|
Please refer to __xconfigfile__(__filemansuffix__) for general configuration
|
|
details. This section only covers configuration details specific to this
|
|
driver.
|
|
.PP
|
|
The following driver
|
|
.B Options
|
|
are supported:
|
|
.TP
|
|
.BI "Option \*qHWCursor\*q \*q" boolean \*q
|
|
.TP
|
|
.BI "Option \*qSWCursor\*q \*q" boolean \*q
|
|
These two options interact to specify hardware or software cursor. If the
|
|
SWCursor option is specified, any HWCursor setting is ignored. Thus, either
|
|
\*qHWCursor off\*q or \*qSWCursor on\*q will force the use of the software
|
|
cursor. On Savage/MX and Savage/IX chips which are connected to LCDs, a
|
|
software cursor will be forced, because the Savage hardware cursor does not
|
|
correctly track the automatic panel expansion feature.
|
|
Default: hardware cursor.
|
|
.TP
|
|
.BI "Option \*qNoAccel\*q \*q" boolean \*q
|
|
Disable or enable acceleration. Default: acceleration is enabled.
|
|
TP
|
|
.BI "Option \*qAccelMethod\*q \*q" "string" \*q
|
|
Chooses between available acceleration architectures. Valid options are
|
|
.B XAA
|
|
and
|
|
.B EXA.
|
|
XAA is the traditional acceleration architecture and support for it is very
|
|
stable. EXA is a newer acceleration architecture with better performance for
|
|
the Render and Composite extensions, but the rendering code for it is newer and
|
|
possibly unstable. The default is
|
|
.B XAA.
|
|
.TP
|
|
.BI "Option \*qRotate\*q \*qCW\*q"
|
|
.TP
|
|
.BI "Option \*qRotate\*q \*qCCW\*q"
|
|
Rotate the desktop 90 degrees clockwise or counterclockwise. This option
|
|
forces the ShadowFB option on, and disables acceleration.
|
|
Default: no rotation.
|
|
.TP
|
|
.BI "Option \*qShadowFB\*q \*q" boolean \*q
|
|
Enable or disable use of the shadow framebuffer layer. This option
|
|
disables acceleration. Default: off.
|
|
.TP
|
|
.BI "Option \*qLCDClock\*q \*q" frequency \*q
|
|
Override the maximum dot clock. Some LCD panels produce incorrect results if
|
|
they are driven at too fast of a frequency. If UseBIOS is on, the BIOS will
|
|
usually restrict the clock to the correct range. If not, it might be
|
|
necessary to override it here. The
|
|
.B frequency
|
|
parameter may be specified as an integer in Hz (135750000), or with
|
|
standard suffixes like "k", "kHz", "M", or "MHz" (as in 135.75MHz).
|
|
.TP
|
|
.BI "Option \*qCrtOnly\*q \*q" boolean \*q
|
|
This option disables output to the LCD and enables output to the CRT port only.
|
|
It is useful on laptops if you only want to use the CRT port or to force the CRT
|
|
output only on desktop cards that use mobile chips. Default: auto-detect active
|
|
outputs
|
|
.TP
|
|
.BI "Option \*qUseBIOS\*q \*q" boolean \*q
|
|
Enable or disable use of the video BIOS to change modes. Ordinarily, the
|
|
.B savage
|
|
driver tries to use the video BIOS to do mode switches. This generally
|
|
produces the best results with the mobile chips (/MX and /IX), since the BIOS
|
|
knows how to handle the critical but unusual timing requirements of the
|
|
various LCD panels supported by the chip. To do this, the driver searches
|
|
through the BIOS mode list, looking for the mode which most closely matches
|
|
the __xconfigfile__ mode line. Some purists find this scheme objectionable. If
|
|
you would rather have the
|
|
.B savage
|
|
driver use your mode line timing exactly, turn off the UseBios option.
|
|
.B Note:
|
|
Use of the BIOS is required for dualhead operation.
|
|
Default: on (use the BIOS).
|
|
.TP
|
|
.BI "Option \*qShadowStatus\*q \*q" boolean \*q
|
|
Enables the use of a shadow status register. There is a chip bug in the
|
|
Savage graphics engine that can cause a bus lock when reading the engine
|
|
status register under heavy load, such as when scrolling text or dragging
|
|
windows. The bug affects about 4% of all Savage users without DRI and
|
|
a large fraction of users with DRI. If your system
|
|
hangs regularly while scrolling text or dragging windows, try turning this
|
|
option on. This uses an alternate method of reading the engine status
|
|
which is slightly more expensive, but avoids the problem. When DRI is
|
|
enabled then the default is \*qon\*q (use shadow status), otherwise
|
|
the default is \*qoff\*q (use normal status register).
|
|
.TP
|
|
.BI "Option \*qDisableCOB\*q \*q" boolean \*q
|
|
Disables the COB (Command Overflow Buffer) on savage4 and newer chips.
|
|
There is supposedly a HW cache coherency problem on certain savage4 and
|
|
newer chips that renders the COB useless. If you are having problems with
|
|
2D acceleration you can disable the COB, however you will lose some
|
|
performance. 3D acceleration requires the COB to work. This option only
|
|
applies to Savage4 and newer chips. Default: \*qoff\*q (use COB).
|
|
.TP
|
|
.BI "Option \*qBCIforXv\*q \*q" boolean \*q
|
|
Use the BCI to copy and reformat Xv pixel data. Using the BCI for Xv causes
|
|
graphics artifacts on some chips. This option only applies to Savage4 and
|
|
prosavage/twister chips. Default: on for prosavage and twister (use BCI for Xv);
|
|
off for savage4 (do not use the BCI for Xv).
|
|
.TP
|
|
.BI "Option \*qAGPMode\*q \*q" integer \*q
|
|
Set AGP data transfer rate.
|
|
(used only when DRI is enabled)
|
|
.br
|
|
1 \-\- x1 (default)
|
|
.br
|
|
2 \-\- x2
|
|
.br
|
|
4 \-\- x4
|
|
.br
|
|
others \-\- invalid
|
|
.TP
|
|
.BI "Option \*qAGPSize\*q \*q" integer \*q
|
|
The amount of AGP memory that will allocated for DMA and textures in
|
|
MB. Valid sizes are 4, 8, 16, 32, 64, 128 and 256. The default is
|
|
16MB.
|
|
.TP
|
|
.BI "Option \*qDmaMode\*q \*q" string \*q
|
|
This option influences in which way DMA (direct memory access) is used
|
|
by the kernel and 3D drivers.
|
|
.br
|
|
Any \-\- Try command DMA first, then vertex DMA (default)
|
|
.br
|
|
Command \-\- Only use command DMA or don't use DMA at all
|
|
.br
|
|
Vertex \-\- Only use vertex DMA or don't use DMA at all
|
|
.br
|
|
None \-\- Disable DMA
|
|
.br
|
|
Command and vertex DMA cannot be enabled at the same time. Which DMA
|
|
mode is actually used in the end also depends on the DRM version (only
|
|
>= 2.4.0 supports command DMA) and the hardware (Savage3D/MX/IX
|
|
doesn't support command DMA).
|
|
.TP
|
|
.BI "Option \*qDmaType\*q \*q" string \*q
|
|
The type of memory that will be used by the 3D driver for DMA (direct
|
|
memory access).
|
|
.br
|
|
PCI \-\- PCI memory (default on PCI cards)
|
|
.br
|
|
AGP \-\- AGP memory (default on AGP cards)
|
|
.br
|
|
\*qAGP\*q only works if you have an AGP card.
|
|
.TP
|
|
.BI "Option \*qBusType\*q \*q" string \*q
|
|
The bus type that will be used to access the graphics card.
|
|
.br
|
|
PCI \-\- PCI bus (default on PCI cards)
|
|
.br
|
|
AGP \-\- AGP bus (default on AGP cards)
|
|
.br
|
|
\*qAGP\*q only works if you have an AGP card. If you choose \*qPCI\*q
|
|
on an AGP card the AGP bus speed is not set and no AGP aperture is
|
|
allocated. This implies
|
|
.BI DmaType
|
|
\*qPCI\*q.
|
|
.SH FILES
|
|
savage_drv.o
|
|
.SH "SEE ALSO"
|
|
__xservername__(__appmansuffix__), __xconfigfile__(__filemansuffix__), xorgconfig(__appmansuffix__), Xserver(__appmansuffix__), X(__miscmansuffix__)
|
|
.SH AUTHORS
|
|
Authors include Tim Roberts (timr@probo.com) and Ani Joshi (ajoshi@unixbox.com)
|
|
for this version, and Tim Roberts and S. Marineau for the original driver from
|
|
which this was derived.
|