Buntu 10.10 and 2 Nvidia Cards (Xinerama)

[SMN]

Hola Hovito's,

I am in a bit of a pickle. I have a GTX 260 pushing 2 x 22" Samsung's (1680x1050) in a TwinView configuration, running all hunky dorey for the past...5 months or so. I want to add a 3rd monitor (my TV), so I've plugged in a 8400GS which my Nvidia-settings has picked up on detect.

Now the problem is, whenever I click "Configure.." on the 3rd screen, I only get "Disabled" and "Seperate X screen (requi..". When I select X, and apply, It appears to work and i get video on my 3rd display, but on my other 2 (the "old" 2) I get a LOT of "Starting File Manager" instances popping up, which soon drags the system to a slow halt. Also, it removes the old functionality of 2 screens, whereby whenever i maximise a window it now goes over the whole desktop, which is unacceptable anyway.

So when i go back and disable the screen and reboot, we're back to normal again. I now go and enable Xinerama, it doesnt give me the crazy "Starting File Manager" errors, and when i maximise an application on the new 3rd display it works as advertised, but still when I maximise an application on the 2 old displays it goes across the whole shebang.

Any ideas?

Sam

I'll add my xorg.conf in the next post.

 

[SMN]

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 260.19.06  (buildd@yellow)  Mon Oct  4 15:59:51 UTC 2010


Section "ServerLayout"

# Removed Option "Xinerama" "0"
# Removed Option "Xinerama" "1"
# Removed Option "Xinerama" "0"
# Removed Option "Xinerama" "1"
# Removed Option "Xinerama" "0"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    Screen      1  "Screen1" RightOf "Screen0"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "1"
EndSection

Section "Files"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"

    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Samsung SyncMaster"
    HorizSync       30.0 - 81.0
    VertRefresh     56.0 - 75.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "LG Electronics LG TV"
    HorizSync       30.0 - 83.0
    VertRefresh     58.0 - 62.0
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GTX 260"
    Option         "RenderAccel" "true"
    BusID          "PCI:1:0:0"
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 8400 GS"
    BusID          "PCI:2:0:0"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "1"
    Option         "TwinViewXineramaInfoOrder" "DFP-0"
    Option         "metamodes" "DFP-0: nvidia-auto-select +0+0, DFP-1: nvidia-auto-select +1680+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"

# Removed Option "metamodes" "nvidia-auto-select +0+0"
# Removed Option "metamodes" "1920x1200_60 +0+0"
# Removed Option "metamodes" "1680x1050 +0+0"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "TwinView" "0"
    Option         "metamodes" "nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

 

[brendan]

I'm not sure this is going to work, not sure Xinerama will work across diffferent cards. You should have bought ATI (J/K).

Wouldnt it be nice to xrandr support in the nvidia binary drivers...