Nouveau - Apr 2008 - [Bug 15675] New: Randr12: works from command-line but not in xorg.conf

http://bugs.freedesktop.org/show_bug.cgi?id=15675

           Summary: Randr12: works from command-line but not in xorg.conf
           Product: xorg
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: amcnabb at mcnabbs.org
         QAContact: xorg-team at lists.x.org


I have two machines with different hardware that are using nouveau with
Randr12.  One of them works fine.  The other one is behaving oddly.  If I set
"Virtual 3200 1200" in the xorg.conf and start up X, only the DVI
monitor
displays anything.  The VGA is blank.  If I run `xrandr --output VGA-0
--right-of DVI-D-0`, then the VGA screen lights up and everything is happy.

However, if I try to tell xorg.conf to put VGA-0 right of DVI-D-0 (which is
what I successfully do on the other computer), then the VGA monitor stays
blank, even though X apparently thinks it is using two monitors.  Here's
what's
at the bottom of xorg.conf:

Section "Monitor"
    Identifier "DVI-D-0"
EndSection 

Section "Monitor"
    Identifier "VGA-0"
    Option "RightOf" "DVI-D-0"
EndSection

When I use this configuration, switching which display is left and which is
right doesn't help.  If I do `xrandr --output VGA-0 --left-of DVI-D-0`, then
the DVI gets the other half of the virtual screen and whatever windows should
have been displayed on the VGA.  However, the VGA is still blank.

At this point, if I do `xrandr --output VGA-0 --same-as DVI-D-0`, then suddenly
the VGA lights up and displays correctly.  I can now put VGA-0 to the right of
or left of DVI-D-0; all of the xrandr commands work perfectly.

I'm using the latest version of nouveau from git.  The machine is running
Fedora Rawhide.  In case it helps, here's the output from `lspci -v` about
the
video card:

05:00.0 VGA compatible controller: nVidia Corporation NV44A [GeForce 6200] (rev
a1) (prog-if 00 [VGA controller])
        Subsystem: Unknown device 196e:02f0
        Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16
        Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
        Memory at d0000000 (32-bit, prefetchable) [size=256M]
        Memory at fc000000 (32-bit, non-prefetchable) [size=16M]
        Expansion ROM at feae0000 [disabled] [size=128K]
        Capabilities: [60] Power Management version 2
        Capabilities: [44] AGP version 3.0
        Kernel driver in use: nvidia
        Kernel modules: nvidia, nvidiafb

I hope this is helpful.


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--- Comment #1 from Andrew McNabb <amcnabb at mcnabbs.org>  2008-04-23
08:29:06 PST ---
Created an attachment (id=16131)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16131)
Xorg.0.log

Attaching Xorg.0.log.  In this particular case, Monitor VGA-0 has Option
"SameAs" "DVI-D-0".  I've also tried with RightOf.  In
both cases, the VGA
monitor is blank.


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--- Comment #2 from Maarten Maathuis <madman2003 at gmail.com>  2008-04-23
09:49:24 PST ---
http://wiki.debian.org/XStrikeForce/HowToRandR12

Try that, i think you made a small mistake with the syntax.

(eg, you need to add Option "Monitor-DVI-D-0" "foomon" to
your device section
for example)


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--- Comment #3 from Andrew McNabb <amcnabb at mcnabbs.org>  2008-04-23
10:46:49 PST ---
Created an attachment (id=16132)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16132)
xorg.conf

I tried doing what you recommended, but it didn't seem to help.  Here's
the new
xorg.conf.

By the way, the page you pointed to had an example that said:

# no need to specific Monitor-VGA-0, it uses the "VGA-0" identifier
automatically

This seems to be consistent with how things are working on the other machine,
where the RightOf, LeftOf, etc. were being respected even though there was no
Option "Monitor-DVI-D-0" "FOO"

Thanks again for your help.


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--- Comment #4 from Andrew McNabb <amcnabb at mcnabbs.org>  2008-04-23
10:49:34 PST ---
Also note that the Xorg.0.log says:

Output DVI-D-0 using monitor section DVI-D-0

and

Output VGA-0 using monitor section VGA-0

even when the Option "Monitor-VGA-0" "FOO" isn't
specified.

Thanks.


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Andrew McNabb <amcnabb at mcnabbs.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #16132|0                           |1
        is obsolete|                            |




--- Comment #5 from Andrew McNabb <amcnabb at mcnabbs.org>  2008-04-23
10:50:21 PST ---
Created an attachment (id=16133)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16133)
xorg.conf (fixed typo)


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--- Comment #6 from Stuart Bennett <sb476 at cam.ac.uk>  2009-01-13
17:02:47 PST ---
Is this still an issue?


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--- Comment #7 from Andrew McNabb <amcnabb at mcnabbs.org>  2009-01-13
17:59:34 PST ---
I don't have any nVidia hardware anymore, so I don't have any way to
check.
It's been a really long time since I filed the bug.


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Marcin Slusarz <marcin.slusarz at gmail.com> changed:

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

--- Comment #8 from Marcin Slusarz <marcin.slusarz at gmail.com>
2010-07-23 16:28:35 PDT ---
Reporter does not have the hardware anymore, last reponse one year ago.
Closing.
If the problem still exists on current version, please reopen with new set of
logs.

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