home *** CD-ROM | disk | FTP | other *** search
- Information for DEC 21030 Users (aka TGA)
-
- The XFree86 Project, Inc.
-
- March 5th, 2000
-
- 1. DEC 21030
-
- o The DEC 21030 is supported by XFree86 4.0. The driver is now partially
- accelerated. The built-in graphics on the Multia is supported in
- 8-plane mode, and PCI cards with 8 or 16 MB framebuffers are supported
- in 24-plane mode. TGA2 (aka PowerStorm 3D30/4D20) cards are not cur-
- rently supported.
-
- o Current Known Problems
-
- 1. Virtual desktops and multiple modelines do not work. You should
- specify only one modeline.
-
- 2. Hardware cursor is only supported on systems with the BT485 ram-
- dac, ie the Multia.
-
- 3. After the server has been run using the hardware cursor, the Linux
- TGA console cursor (which also uses the hardware cursor) is
- shifted down by one pixel. This problem does not affect Linux ker-
- nels 2.2.10 and above, which do not use the hardware cursor.
-
- 4. The XAA PolySegment() method is buggy. If you experience server
- crashes with SIGFPE, or server hangs, try disabling it (see
- below).
-
- o The following options may be specified for the 21030 driver:
-
- BusID "PCI:?:??:?"
- Currently it is necessary to specify the BusID so that the
- server will find the card. Check /proc/pci and look for the
- bus, device, and function numbers in the 21030 section. On
- a Multia, this should be "PCI:0:11:0".
-
- MemBase 0x???????
- If the server does not detect the base address of the 21030,
- then check /proc/pci for the 21030 and look for the
- "Prefetchable 32 bit memory at 0x???????" and enter this as
- your MemBase setting.
-
- Option "NoAccel"
- Disables acceleration.
-
- Option "swcursor"
- Disables the hardware cursor.
-
- Option "NoXaaPolySegment"
- Disables the XAA PolySegment() method.
-
- 2. Authors
-
- o Matthew Grossman, <mattg@oz.net>
-
- o Alan Hourihane, <alanh@fairlite.demon.co.uk>
-
- o Martin Lucina, <mato@kotelna.sk>
-
- o Tim Rowley, <tor@cs.brown.edu>
-
- Generated from XFree86: xc/programs/Xserver/hw/xfree86/doc/sgml/DECtga.sgml,v 3.9 2000/03/06 22:59:23 dawes Exp $
-
-