cyrix(4)
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CYRIX(4) XFree86 CYRIX(4)
NAME
cyrix - Cyrix video driver
SYNOPSIS
Section "Device"
Identifier "devname"
Driver "cyrix"
...
EndSection
DESCRIPTION
cyrix is an XFree86 driver for the Cyrix MediaGX (now Nat
semi Geode) series of processors when using the built in
video.
SUPPORTED HARDWARE
The cyrix driver supports the MediaGX, MediaGXi and Medi
aGXm processors, as well as the Natsemi 'Geode' branded
processors. It supports the CS5510, CS5520, CS5530 and
CS5530A companion chips. The driver supports 4, 8, 15 and
16 bit deep displays with video compression and accelera
tion.
The MediaGX run length compresses its shared framebuffer,
for the best performance on a MediaGX machine pick back
grounds that compress well horizonally.
CONFIGURATION DETAILS
Please refer to XF86Config(5) for general configuration
details. This section only covers configuration details
specific to this driver.
The following driver options are supported
Option "NoAccel" "boolean"
Disable or enable acceleration. Default: accelera
tion is enabled.
Option "SWCursor" "boolean"
Disable or enable software cursor. Default software
cursor is enabled and a hardware cursor is used.
Option "HWCursor" "boolean"
Disable or enable hardware cursor. Default hardware
cursor is disabled.
Option "ShadowFB" "boolean"
Disable or enable shadow frame buffer. The shadow
buffer is normally only used when rotating the
screen. The default is false.
Option "Rotate" "CW"
4.3.0 Version 1
CYRIX(4) XFree86 CYRIX(4)
Option "Rotate" "CCW"
Rotate the display clockwise or counterclockwise for use
on Cyrix based tablet PC systems. This mode is currently
unaccelerated.
BUGS
This driver has not been tested on the original 5510 hard
ware for some considerable time.
8bit mode does not currently work on the CS5510 with
external RAMDAC.
The 5530A video overlay facility is not currently sup
ported.
XFree86 uses the MediaGX 'SoftVGA' interface. On a small
number of boards this is buggy and may result in strange
illegal instruction traps.
Hardware cursors are not currently supported.
SEE ALSO
XFree86(1), XF86Config(5), xf86config(1), Xserver(1), X(7)
AUTHORS
Authors include: Richard Hecker, Annius Groenink, Dirk
Hohndel, The GGI Project, Alan Cox.
4.3.0 Version 2
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