VGA arbiter: cannot open kernel arbiter, no multi-card support

[Dmitriy Goncharyuk]

Hello everybody,

I used multiseat configuration with two video cards on my home desktop
with operation system ArchLinux + Xorg + xdm .
But now I'm trying to go on  new release FreeBSD 9.1 and having some
problem with Xorg.
I use same configuration Xorg + xdm, but only first display(seat) works.
I found warning massage at Xorg.0.log and think is a root cause of this.
 (WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
According VgaArbiter , I found only one page
http://www.x.org/wiki/VgaArbiter , with last edited 2008-05-16
05:50:45, thus I don't shure that
this page is still actual, beacause all link there are invalid.
Could you clarify the situation about this ?

My home Desktop:
FreeBSD myh.ua1 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec  4
09:23:10 UTC 2012
root at farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64
xorg-7.5.2          X.Org complete distribution metaport
xorg-apps-7.5.2     X.org apps meta-port
xorg-docs-1.6,1     X.org documentation files
xorg-drivers-7.5.2  X.org drivers meta-port
xorg-fonts-100dpi-7.5.1 X.Org 100dpi bitmap fonts
xorg-fonts-7.5.1    X.org fonts meta-port
xorg-fonts-75dpi-7.5.1 X.Org 75dpi bitmap fonts
xorg-fonts-cyrillic-7.5.1 X.Org Cyrillic bitmap fonts
xorg-fonts-miscbitmaps-7.5.1 X.Org miscellaneous bitmap fonts
xorg-fonts-truetype-7.5.1 X.Org TrueType fonts
xorg-fonts-type1-7.5.1 X.Org Type1 fonts
xorg-libraries-7.5.1 X.org libraries meta-port
xorg-macros-1.16.1  X.Org development aclocal macros
xorg-server-1.7.7_6,1 X.Org X server and related programs
xdm-1.1.11          X.Org X display manager

vgapci0 at pci0:2:0:0:	class=0x030000 card=0x00000000 chip=0x94981002
rev=0x00 hdr=0x00
    vendor     = 'ATI Technologies Inc'
    device     = 'RV730 PRO [Radeon HD 4650]'
    class      = display
    subclass   = VGA
vgapci1 at pci0:3:0:0:	class=0x030000 card=0xe100174b chip=0x94901002
rev=0x00 hdr=0x00
    vendor     = 'ATI Technologies Inc'
    device     = 'RV730XT [Radeon HD 4670]'
    class      = display
    subclass   = VGA

ugen3.2: <product 0x005a vendor 0x0409> at usbus3, cfg=0 md=HOST
spd=HIGH (480Mbps) pwr=SAVE
ugen5.2: <USB Receiver Logitech> at usbus5, cfg=0 md=HOST spd=FULL
(12Mbps) pwr=ON
ugen4.3: <product 0x0103 vendor 0x04f3> at usbus4, cfg=0 md=HOST
spd=LOW (1.5Mbps) pwr=ON
ugen4.2: <USB Optical Mouse Logitech> at usbus4, cfg=0 md=HOST spd=LOW
(1.5Mbps) pwr=ON

My xorg configuration and log files were attached also.
Thanks , Dmitriy.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: xorg.conf
Type: application/octet-stream
Size: 11735 bytes
Desc: not available
URL: <http://lists.x.org/archives/xorg/attachments/20130129/b10e1dc9/attachment-0004.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Xorg.0.log.old2
Type: application/octet-stream
Size: 234456 bytes
Desc: not available
URL: <http://lists.x.org/archives/xorg/attachments/20130129/b10e1dc9/attachment-0005.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Xorg.1.log.old2
Type: application/octet-stream
Size: 10186 bytes
Desc: not available
URL: <http://lists.x.org/archives/xorg/attachments/20130129/b10e1dc9/attachment-0006.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: xdm.log.old.2
Type: application/octet-stream
Size: 4249 bytes
Desc: not available
URL: <http://lists.x.org/archives/xorg/attachments/20130129/b10e1dc9/attachment-0007.obj>