82 lines
2.3 KiB
Plaintext
82 lines
2.3 KiB
Plaintext
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<!DOCTYPE linuxdoc PUBLIC "-//Xorg//DTD linuxdoc//EN" [
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<!ENTITY % defs SYSTEM "defs.ent"> %defs;
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]>
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<article>
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<title>Information for DEC 21030 Users (aka TGA)
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<author>The XFree86 Project, Inc.
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<and>Updates for X11R&relvers; by Jim Gettys
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<date>March 25th, 2004
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<ident>
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</ident>
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<toc>
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<p>
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<sect>DEC 21030
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<p>
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<itemize>
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<item>The DEC 21030 is supported by X11R&relvers;.
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The driver is now
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partially accelerated. The built-in graphics on the Multia is
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supported in 8-plane mode, and PCI cards with 8 or 16 MB framebuffers
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are supported in 24-plane mode. TGA2 (aka PowerStorm 3D30/4D20)
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cards are not currently supported.
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<item>Current Known Problems
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<enum>
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<item>Virtual desktops and multiple modelines do not work. You should
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specify only one modeline.
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<item>Hardware cursor is only supported on systems with the BT485
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ramdac, ie the Multia.
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<item>After the server has been run using the hardware cursor, the
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Linux TGA console cursor (which also uses the hardware cursor) is
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shifted down by one pixel. This problem does not affect Linux kernels
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2.2.10 and above, which do not use the hardware cursor.
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<item>The XAA PolySegment() method is buggy. If you experience server
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crashes with SIGFPE, or server hangs, try disabling it (see below).
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</enum>
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<item>The following options may be specified for the 21030 driver:
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<descrip>
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<tag>BusID "PCI:?:??:?"</tag> Currently it is necessary to
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specify the BusID so that the server will find the card.
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Check /proc/pci and look for the bus, device, and function
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numbers in the 21030 section. On a Multia, this should be
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&dquot;PCI:0:11:0&dquot;.
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<tag>MemBase 0x???????</tag> If the server does not
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detect the base address of the 21030, then check /proc/pci for
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the 21030 and look for the "Prefetchable 32 bit memory
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at 0x???????" and enter this as your MemBase setting.
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<tag>Option "NoAccel"</tag>
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Disables acceleration.
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<tag>Option "swcursor"</tag>
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Disables the hardware cursor.
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<tag>Option "NoXaaPolySegment"</tag>
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Disables the XAA PolySegment() method.
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</descrip>
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</itemize>
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<sect>Authors
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<p>
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<itemize>
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<item>Matthew Grossman, <email>mattg@oz.net</email>
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<item>Alan Hourihane, <email>alanh@fairlite.demon.co.uk</email>
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<item>Martin Lucina, <email>mato@kotelna.sk</email>
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<item>Tim Rowley, <email>tor@cs.brown.edu</email>
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</itemize>
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</article>
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