CYRIX(4) UNIX Programmer's Manual 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 MediaGXm
processors, as well as the Natsemi 'Geode' branded proces-
sors. 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 acceleration.
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: acceleration
is enabled.
Option "SWCursor" "boolean"
Disable or enable software cursor. Default: software
cursor is enabled.
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"
XFree86 Version 4.5.0 1
CYRIX(4) UNIX Programmer's Manual CYRIX(4)
Option "Rotate" "CCW"
Rotate the display clockwise or counterclockwise for
use on Cyrix based tablet PC systems. This mode is
currently unaccelerated. Default: no rotation.
BUGS
This driver has not been tested on the original 5510
hardware for some considerable time.
8bit mode does not currently work on the CS5510 with exter-
nal RAMDAC.
The 5530A video overlay facility is not currently supported.
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.
XFree86 Version 4.5.0 2