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[kirke <tallbear44@xxxxxxxxx>]

Public bug reported:

Ubuntu 9.10 Karmic on a Zotac IONITX A-U (9400M Nvidia onboard).  I have
two VGA monitors.  The second, which is always "No Signal" is connected
to a dongle to the DVI port (Viewsonic).  The main X monitor is connected
to the VGA port above the DVI port.  Tried the stock 185 and 190.53 from
the nvidia-vdpau PPA.  There were two hurdles I overcame, but I'm stuck
on the third:

1. nvidia-settings "Save to X configuration file" button fails.
    => sudo nvidia-settings
2. Next you'll crash with: Unable to parse xorg.conf file!
    VALIDATION ERROR:  Data incomplete in file /etc/X11/xorg.conf.
    Undefined Device "(null)" referenced by Screen "Default Screen".
    Segmentation fault
    => insert Device field into the Screen section:
3. Second monitor is stuck on No Signal.

Both 185 and 190 recognized the Viewsonic through the dongle, but the
second monitor is never getting a signal.  I can swap connectors and see
the reverse - the second monitor works fine.  I use the same monitor
as a second head under Intrepid with an ASUS GeForce 8400GS with no
problems in Xinerama mode to watch Mythtv 0.21.

I've never seen a glimmer of hope from the DVI output, and I'm left
wondering if this is a hardware problem or not.  I guess the fact that
nvidia-settings recognized the device is a sign this may be a driver
issue.

I tried the 190.53 driver from nvidia-vdpau PPA because of this tidbit in the release notes:
http://www.nvidia.com/object/linux_display_ia32_190.53.html
Fixed a problem that caused resolution limitations or corruption on certain DisplayPort devices such as the Apple 24" Cinema display or some DisplayPort to VGA adapters.

But to no avail - I'm seeing the same behavior with 185 and 190 versions of proprietary nvidia driver.
I've attached Xorg.0.log.

DKMS make.log for nvidia-190.53 for kernel 2.6.31-14-generic (i686)
Wed Dec 16 21:40:50 PST 2009
NVIDIA: calling KBUILD...
make CC=cc  KBUILD_VERBOSE=1 -C /lib/modules/2.6.31-14-generic/build
    SUBDIRS=/var/lib/dkms/nvidia/190.53/build modules
...
  ld -r -m elf_i386  --build-id -o
  /var/lib/dkms/nvidia/190.53/build/nvidia.ko
  /var/lib/dkms/nvidia/190.53/build/nvidia.o
  /var/lib/dkms/nvidia/190.53/build/nvidia.mod.o
NVIDIA: left KBUILD.

** Affects: nvidia-graphics-drivers-180 (Ubuntu)
     Importance: Undecided
         Status: New

-- 
No Signal from second VGA on DVI dongle
https://bugs.launchpad.net/bugs/497668
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