xsrc/41922: tdfx driver does not load on 5.0.1 X11R7, "Undefined PLT symbol"

[mustang%engholm.org@localhost]

>Number:         41922
>Category:       xsrc
>Synopsis:       tdfx driver does not load on 5.0.1 X11R7, "Undefined PLT 
>symbol"
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    xsrc-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Aug 23 06:55:00 +0000 2009
>Originator:     Dan Engholm
>Release:        5.0.1
>Organization:
>Environment:
NetBSD superman.engholm.org 5.0.1 NetBSD 5.0.1 (GENERIC) #0: Sun Aug  9 
06:27:11 PDT 2009  
mustang%alfred.engholm.org@localhost:/usr/home/mustang/netbsd/5.0.1/usr/src/sys/arch/i386/compile/obj/GENERIC
 i386
>Description:
I just upgraded this machine from 4.0.1 to 5.0.1 thus switched over from 
XFree86 X11R6 to xorg X11R7.  To configure my X server, I used "X -configure," 
moved the /root/xorg.conf.new to /etc/X11/xorg.conf and tried to start xdm.  
The screen went blank and I could not get it to come back, not even switching 
to other virtual terminals.  I went to another machine and sshed in.  Just 
running X showed the following output:

superman# X 

X.Org X Server 1.4.2
Release Date: 11 June 2008
X Protocol Version 11, Revision 0
Build Operating System: NetBSD/i386  - 
Current Operating System: NetBSD superman.engholm.org 5.0.1 NetBSD 5.0.1 
(GENERIC) #0: Sun Aug  9 06:27:11 PDT 2009  
mustang%alfred.engholm.org@localhost:/usr/home/mustang/netbsd/5.0.1/usr/src/sys/arch/i386/compile/obj/GENERIC
 i386
Build Date: 11 June 2008  04:31:59PM
 
        Before reporting problems, check http://wiki.X.Org
        to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Aug 22 23:24:37 2009
(==) Using config file: "/etc/X11/xorg.conf"
(II) Module "ramdac" already built-in
(II) Module "ddc" already built-in
(II) Module "ddc" already built-in
/usr/X11R7/lib/modules/drivers//tdfx_drv.so: Undefined PLT symbol 
"TDFXDRIScreenInit" (symnum = 162)

I checked my old X11R6 X server configuration file and it said it was using the 
same driver (tdfx).

To work around the problem, I'm putting a different video display adapter in 
the PC but I'd like to eventually switch it back.  Of course, I can put this 
card in another machine for testing, if necessary.
>How-To-Repeat:
In a system with a Voodoo 3 video card in it, try running the X server.
>Fix: