Nouveau - Jul 2008 - [Bug 16897] New: Support for multiple nvidia cards

http://bugs.freedesktop.org/show_bug.cgi?id=16897

           Summary: Support for multiple nvidia cards
           Product: xorg
           Version: unspecified
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: jason at long.name
         QAContact: xorg-team at lists.x.org


I have two (rather old) nvidia cards in my PC.
 * GeForce4 MX 420
 * RIVA TNT2

I used these two cards to create a multi-seat setup with Fedora 8. (I used the
proprietary nvidia driver). It worked great.

When I upgraded to Fedora 9, I found that the proprietary driver wasn't
supported, so I'm giving Nouveau a try. I'm finding that Nouveau can
only deal
with one card at a time, apparently. When I start X with the second card, the
second monitor does not light up and X apparently locks up.

Surprisingly, I couldn't find an existing bugzilla entry for supporting
multiple cards, so now I'm creating one. Hope that's ok.

(PS- I have some time in the next few weeks, and I'm a pretty good C
programmer. Is this a bug that one could get into the code and fix in a few
weeks, or are we talking major rewrite of the driver?)


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http://bugs.freedesktop.org/show_bug.cgi?id=16897





--- Comment #1 from Maarten Maathuis <madman2003 at gmail.com>  2008-07-30
15:51:23 PST ---
As far as i know the problem is two fold (this is from hearsay and other
impressions).

One side of the problem seems to be that somehow the 2nd ddx(xorg driver)
doesn't associate itself appropriately with the 2nd card/drm/kernel driver.
This is not neccesarily a huge problem to fix, just a matter of finding it.

The other side is that randr-1.2 doesn't support xinerama, so you will have
to
run two completely seperate xserver's. This is something that is well beyond
the scope of a small'ish fix.


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Stuart Bennett <sb476 at cam.ac.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |przanoni at gmail.com




--- Comment #2 from Stuart Bennett <sb476 at cam.ac.uk>  2009-01-13
16:28:54 PST ---
*** Bug 16597 has been marked as a duplicate of this bug. ***


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Younes Manton <younes.m at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |elbeardmorez at msn.com




--- Comment #3 from Younes Manton <younes.m at gmail.com>  2009-04-11
13:31:42 PST ---
*** Bug 16165 has been marked as a duplicate of this bug. ***


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Martin Peres <martin.peres at ensi-bourges.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #4 from Martin Peres <martin.peres at ensi-bourges.fr> ---
Nouveau should support multicard pretty well:
http://nouveau.freedesktop.org/wiki/FeatureMatrix/

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