Date: Tue, 5 Sep 1995 19:33:40 +0200 (MET DST) From: Ollivier Robert <roberto@keltia.frmug.fr.net> To: didier@omnix.fr.org (Didier Derny) Cc: hardware@freebsd.org Subject: Re: Video Board Message-ID: <199509051733.TAA26379@keltia.frmug.fr.net> In-Reply-To: <Pine.BSF.3.91.950905102514.1218A-100000@zapata.omnix.fr.org> from "Didier Derny" at Sep 5, 95 10:27:34 am
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It seems that Didier Derny said:
> What is the least expensive S3 board working with FreeBSD-2.05 and
> XFree86 ?
Depends on where you buy it :-)
Seriously, there is a lot cheap S3 cards from Taiwan available in the
french market. Just browse some shops.
> Is it possible to use a Cirrus (GD5434) Board with FreeBSD-2.05 and
> XFree86 ?
This is really a XFree86 version not a FreeBSD. Check in Xfree86's release
notes.
------------------------------------------------------------
Information for Cirrus Chipset Users
Harm Hanemaayer (hhanemaa@cs.ruu.nl), Randy Hendry
(randy@sgi.com)
27 January 1995
1. Supported chipsets
There are two different SVGA drivers for Cirrus chipsets, one called
``cirrus'' and one called ``cl64xx''. The ``cirrus'' driver is used
in the 256-color SVGA server (with acceleration) and the mono server
(without acceleration). The SVGA server supports 16 and 32 bits-per-
pixel truecolor modes on some configurations. The ``cl64xx'' driver
is used in the 256-color SVGA, 16-color and mono servers. Note that
except where stated otherwise, this document is referring to the
``cirrus'' driver. The following chipsets by Cirrus Logic are
supported:
CL-GD5420
ISA SVGA chipset, 1Mbyte; maximum dot clock is 45 MHz (256 color
server). Acceleration with extended write modes (used for
scrolling and solid filling in this driver). This chipset can
not support 1024x768 non-interlaced in 256 colors.
CL-GD5422
Enhanced version of the 5420 (32-bit internal memory interface).
Maximum dot clock is 80 MHz.
CL-GD6205/6215/6225/6235
Laptop chipsets more or less compatible with the 5420. The only
dot clock supported is 25 MHz (more on an external display).
Some problems have been reported with these chipsets (especially
on external displays). Take note of the "noaccel" option.
CL-GD6420/6440
These chipsets are not compatible with the 542x series, but are
supported by the ``cl64xx'' driver. It is used in recent
laptops, and bears some similarity to old Cirrus chipsets
(5410/AVGA2). The driver may also work for other 64xx chips. The
configuration identifiers for this driver are "cl6420" and
"cl6440". This driver is discussed in detail in section ``The
cl64xx Driver''.
CL-GD5424
Basically VLB version of the 5422, but resembles the 5426 in
some respects.
CL-GD5426
Supports both ISA bus and VLB, and up to 2Mbyte of memory. Has
BitBLT engine for improved acceleration (BitBlt, image transfer,
text). Dot clock limit is 85 MHz.
CL-GD5428
Enhanced version of the 5426.
CL-GD5429
Enhanced version of the 5428; officially supports higher MCLK
and has memory-mapped I/O.
CL-GD5430
Similar to 5429, but with 543x core (32-bit host interface).
Does not have 64-bit memory mode.
CL-GD5434
Next generation `Alpine' family chip with 64-bit internal memory
interface. Used by the Orchid Kelvin 64. The chip can only
support 64-bit mode if equipped with 2 Mbytes of memory; cards
with only 1 Mbyte are severely limited. Support dot clocks up
to 110 MHz.
--
Ollivier ROBERT -=- The daemon is FREE! -=- roberto@keltia.frmug.fr.net
FreeBSD keltia 2.2-CURRENT #17: Sun Sep 3 20:59:24 MET DST 1995
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