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I Just installed Ubuntu 13.10 and I have 2 pci-E video cards (geforce 8400 GS and geforce 7950 gt) I have 2 monitors, 1 old Samsung 14" plugged on the 8400GS VGA port(main PCI-E) and another 22" LG22EA53 plugged on Geforce 7950 GT DVI port(secondary PCI-E). My 14" monitor has image, the 22" has no image. on The monitor config I can see the 22", I can change its resolution, move it around, but it shows no image. The monitor itself understand that he is plugged (when not plugged it blinks the power light, when plugged it keeps the power light always off, yes it is powered on and it identify that he is connected on DVI port) looks like he is receiving "black screen" instead of image. If I try to change his position (by default he is on right of the 14" monitor, but he's actual position is on the left) the screen gets all fuzzy for some time and then it logout and restore the default... On System settings -> Software and updates -> additional drivers it shows only the 8400GS. Yesterday i was able to get the 7950GT to show on that additiona driver screen, but still no image, than i messed ups things and had to re-install Ubuntu... I tried to install bumblebee but couldnt configure it, tried envy nvidia but its outdated. When I type $ lshw -c video it gives me this:

  -display               
       description: VGA compatible controller
       product: G86 [GeForce 8400 GS]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
       configuration: driver=nouveau latency=0
       resources: irq:16 memory:ea000000-eaffffff memory:e0000000-e7ffffff
memory:e8000000-e9ffffff ioport:4000(size=128)
  -display
       description: VGA compatible controller
       product: G71 [GeForce 7950 GT]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list
       configuration: driver=nouveau latency=0
       resources: irq:16 memory:ec000000-ecffffff memory:d0000000-dfffffff
memory:eb000000-ebffffff ioport:3000(size=128)

Any suggestions on how do I make it work?!?

Thank you guys...

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Please use Markdown when writing posts, and not a million <br/> tags! –  RolandiXor Oct 26 '13 at 18:02
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