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man : chips(4)
CHIPS(4) CHIPS(4)
NAME
chips - Chips and Technologies video driver
SYNOPSIS
Section "Device"
Identifier "devname"
Driver "chips"
...
EndSection
DESCRIPTION
chips is an Xorg driver for Chips and Technologies video
processors. The majority of the Chips and Technologies
chipsets are supported by this driver. In general the lim-
itation on the capabilities of this driver are determined
by the chipset on which it is run. Where possible, this
driver provides full acceleration and supports the follow-
ing depths: 1, 4, 8, 15, 16, 24 and on the latest chipsets
an 8+16 overlay mode. All visual types are supported for
depth 1, 4 and 8 and both TrueColor and DirectColor visu-
als are supported where possible. Multi-head configura-
tions are supported on PCI or AGP buses.
SUPPORTED HARDWARE
The chips driver supports video processors on most of the
bus types currently available. The chipsets supported
fall into one of three architectural classes. A basic
architecture, the WinGine architecture and the newer HiQV
architecture.
Basic Architecture
The supported chipsets are ct65520, ct65525, ct65530,
ct65535, ct65540, ct65545, ct65546 and ct65548
Color depths 1, 4 and 8 are supported on all chipsets,
while depths 15, 16 and 24 are supported only on the
65540, 65545, 65546 and 65548 chipsets. The driver is
accelerated when used with the 65545, 65546 or 65548
chipsets, however the DirectColor visual is not available.
Wingine Architecture
The supported chipsets are ct64200 and ct64300
Color depths 1, 4 and 8 are supported on both chipsets,
while depths 15, 16 and 24 are supported only on the 64300
chipsets. The driver is accelerated when used with the
64300 chipsets, however the DirectColor visual is not
available.
HiQV Architecture
The supported chipsets are ct65550, ct65554, ct65555,
X Version 11 xf86-video-chips 1.2.1 1
CHIPS(4) CHIPS(4)
ct68554, ct69000 and ct69030
Color depths 1, 4, 8, 15, 16, 24 and 8+16 are supported on
all chipsets. The DirectColor visual is supported on all
color depths except the 8+16 overlay mode. Full accelera-
tion is supplied for all chipsets.
CONFIGURATION DETAILS
Please refer to xorg.conf(5) for general configuration
details. This section only covers configuration details
specific to this driver.
The driver auto-detects the chipset type, but the follow-
ing ChipSet names may optionally be specified in the con-
fig file "Device" section, and will override the auto-
detection:
"ct65520", "ct65525", "ct65530", "ct65535", "ct65540",
"ct65545", "ct65546", "ct65548", "ct65550", "ct65554",
"ct65555", "ct68554", "ct69000", "ct69030", "ct64200",
"ct64300".
The driver will auto-detect the amount of video memory
present for all chipsets. But maybe overridden with the
VideoRam entry in the config file "Device" section.
The following driver Options are supported, on one or more
of the supported chipsets:
Option "NoAccel" "boolean"
Disable or enable acceleration. Default: accelera-
tion is enabled.
Option "NoLinear" "boolean"
Disables linear addressing in cases where it is
enabled by default. Default: off
Option "Linear" "boolean"
Enables linear addressing in cases where it is dis-
abled by default. Default: off
Option "HWCursor" "boolean"
Enable or disable the HW cursor. Default: on.
Option "SWCursor" "boolean"
Enable or disable the SW cursor. Default: off.
Option "STN" "boolean"
Force detection of STN screen type. Default: off.
Option "UseModeline" "boolean"
Reprogram flat panel timings with values from the
modeline. Default: off
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CHIPS(4) CHIPS(4)
Option "FixPanelSize" "boolean"
Reprogram flat panel size with values from the mod-
eline. Default: off
Option "NoStretch" "boolean"
This option disables the stretching on a mode on a
flat panel to fill the screen. Default: off
Option "LcdCenter" "boolean"
Center the mode displayed on the flat panel on the
screen. Default: off
Option "HWclocks" "boolean"
Force the use of fixed hardware clocks on chips
that support both fixed and programmable clocks.
Default: off
Option "UseVclk1" "boolean"
Use the Vclk1 programmable clock on HiQV chipsets
instead of Vclk2. Default: off
Option "FPClock8" "float"
Option "FPClock16" "float"
Option "FPClock24" "float"
Option "FPClock32" "float"
Force the use of a particular video clock speed for
use with the flat panel at a specified depth
Option "MMIO" "boolean"
Force the use of memory mapped IO for acceleration
registers. Default: off
Option "FullMMIO" "boolean"
Force the use of memory mapped IO where it can be
used. Default: off
Option "SuspendHack" "boolean"
Force driver to leave centering and stretching reg-
isters alone. This can fix some laptop sus-
pend/resume problems. Default: off
Option "Overlay"
Enable 8+24 overlay mode. Only appropriate for
depth 24. Default: off.
Option "ColorKey" "integer"
Set the colormap index used for the transparency
key for the depth 8 plane when operating in 8+16
overlay mode. The value must be in the range
2-255. Default: 255.
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CHIPS(4) CHIPS(4)
Option "VideoKey" "integer"
This sets the default pixel value for the YUV video
overlay key. Default: undefined.
Option "ShadowFB" "boolean"
Enable or disable use of the shadow framebuffer
layer. Default: off.
Option "SyncOnGreen" "boolean"
Enable or disable combining the sync signals with
the green signal. Default: off.
Option "ShowCache" "boolean"
Enable or disable viewing offscreen memory. Used
for debugging only Default: off.
Option "18bitBus" "boolean"
Force the driver to assume that the flat panel has
an 18bit data bus. Default: off.
Option "Crt2Memory" "integer"
In a dual-head mode (69030 only) this option
selects the amount of memory to set aside for the
second head. If not specified, half the memory is
used. Default: off.
Option "DualRefresh" "integer"
The 69030 supports independent refresh rates on its
two display channels. This mode of operations uses
additional memory bandwidth and thus limits the
maximum colour depth and refresh rate that can be
achieved, and so is off by default. Using this
option forces the use of an independent refresh
rate on the two screens. Default: off.
Option "FpMode" "boolean"
The driver probes the chip to find out if a flat
panel (LCD) is connected and active. If this is
true it limits the possible screen size to the max-
imum resolution of the panel. The chips is initial-
ized by the BIOS which may set the chip to 'dual'
mode even if no panel is connected. In this case
the available resolution on the CRT is limited to
the panel size the BIOS has set. To tell the driver
that no panel is connected despite of what the BIOS
is saying set this option to off. Don't set it to
off if a panel is connected. Default: value probed
by BIOS.
SEE ALSO
Xorg(1), xorg.conf(5), xorgconfig(1), Xserver(1), X(7)
You are also recommended to read the README.chips file
that comes with all Xorg distributions, which discusses
X Version 11 xf86-video-chips 1.2.1 4
CHIPS(4) CHIPS(4)
the chips driver in more detail.
AUTHORS
Authors include: Jon Block, Mike Hollick, Regis Cridlig,
Nozomi Ytow, Egbert Eich, David Bateman and Xavier Ducoin
X Version 11 xf86-video-chips 1.2.1 5
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