multi head failsafe

Timothy S. Nelson wayland at
Wed Dec 17 04:19:54 PST 2008

On Wed, 17 Dec 2008, Carl Karsten wrote:

> I have 3 video cards:
> 01:00.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2 MX/MX 400]
> (rev b2)
> 02:08.0 VGA compatible controller: ATI Technologies Inc Rage 128 PP/PRO TMDS
> [Xpert 128]
> 02:09.0 VGA compatible controller: ATI Technologies Inc 210888GX [Mach64 GX]
> (rev 03)
> I am pretty sure I had all 3 working at one point, then I did 'something' and
> lost one.  last night I installed ubntu ibex and now I can only get the nvidia
> one to work.  I use the extra monitors for IRC and doc files, so I don't need
> much in the way of graphics.
> What I am hoping for is something very basic and low end that will help me
> verify that cables are plugged in, boards are still working, etc.  And in the
> future, help me and others troubleshoot.

 	If it locks or doesn't run at that point, you're probably running into 
this bug:

 	(I noticed your log finishes with "initializing int10", which is what 
mine finished with when I ran into this bug).

 	The cause is that, at a certain point, Xorg got rid of its inbuilt PCI 
handling code, and has been relying on the kernel PCI code.  Unfortunately, 
there's been a bug in the Xorg code, and a bug in the kernel as well.  Either 
Alex Villacis-Lasso (excuse lack of diacritics) will fix it, or my book on PCI 
architecture will arrive, and I'll give it a go myself (but it may be beyond 

 	The workaround is to downgrade to an older version of Xorg.  I forget 
what version worked, but IIRC, it worked in Fedora 8, but not Fedora 9 (I 
went straight from Fedora 6 to Fedora 10 myself, so I'm unsure).

 	HTH some.

| Name: Tim Nelson                 | Because the Creator is,        |
| E-mail: wayland at    | I am                           |

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