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README revision 1.1 
      1   Information for DEC 21030 Users (aka TGA)
      2   The XFree86 Project, Inc.
      3   Updates for X11R6.8 by Jim Gettys
      4   March 25th, 2004
      5   ____________________________________________________________
      6 
      7   Table of Contents
      8 
      9 
     10   1. DEC 21030
     11   2. Authors
     12 
     13 
     14   ______________________________________________________________________
     15 
     16 
     17   [1m1.  DEC 21030[0m
     18 
     19 
     20   +o  The DEC 21030 is supported by X11R6.8.  The driver is now partially
     21      accelerated.  The built-in graphics on the Multia is supported in
     22      8-plane mode, and PCI cards with 8 or 16 MB framebuffers are
     23      supported in 24-plane mode.  TGA2 (aka PowerStorm 3D30/4D20) cards
     24      are not currently supported.
     25 
     26   +o  Current Known Problems
     27 
     28 
     29      1. Virtual desktops and multiple modelines do not work.  You should
     30         specify only one modeline.
     31 
     32      2. Hardware cursor is only supported on systems with the BT485
     33         ramdac, ie the Multia.
     34 
     35      3. After the server has been run using the hardware cursor, the
     36         Linux TGA console cursor (which also uses the hardware cursor)
     37         is shifted down by one pixel. This problem does not affect Linux
     38         kernels 2.2.10 and above, which do not use the hardware cursor.
     39 
     40      4. The XAA PolySegment() method is buggy. If you experience server
     41         crashes with SIGFPE, or server hangs, try disabling it (see
     42         below).
     43 
     44 
     45   +o  The following options may be specified for the 21030 driver:
     46 
     47      [1mBusID[0m
     48         Currently it is necessary to specify the BusID so that the
     49         server will find the card.  Check /proc/pci and look for the
     50         bus, device, and function numbers in the 21030 section.  On a
     51         Multia, this should be "PCI:0:11:0".
     52 
     53 
     54      [1mMemBase 0x???????[0m
     55         If the server does not detect the base address of the 21030,
     56         then check /proc/pci for the 21030 and look for the
     57         "Prefetchable 32 bit memory at 0x???????" and enter this as your
     58         MemBase setting.
     59 
     60 
     61      [1mOption[0m
     62         Disables acceleration.
     63 
     64 
     65      [1mOption[0m
     66         Disables the hardware cursor.
     67      [1mOption[0m
     68         Disables the XAA PolySegment() method.
     69 
     70 
     71 
     72   [1m2.  Authors[0m
     73 
     74 
     75   +o  Matthew Grossman,  <mattg (a] oz.net>
     76 
     77   +o  Alan Hourihane,  <alanh (a] fairlite.demon.co.uk>
     78 
     79   +o  Martin Lucina,  <mato (a] kotelna.sk>
     80 
     81   +o  Tim Rowley,  <tor (a] cs.brown.edu>
     82 
     83 
     84 
     85