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-   -   Second Xserver blank but mouse works (http://www.nvnews.net/vbulletin/showthread.php?t=125733)

sniff 01-06-09 04:35 AM

Second Xserver blank but mouse works
 
Hello,
I'm trying to setup 4 monitors as two separate twinview screens. I'm starting simple but failing at the start.

I have a motherboard with a 780a chipset, which I currently have one monitor installed on. This works, I also have a 8600GT installed in the system with two monitors connected but I'm trying to get one working with a separate Xserver. I want this to be a completely separate session.

Currently one screen works, running of the 780a, the second screen is accessible with the mouse, but it doesn't have anything running on it. Its blank. The active screen is Above the blank mouse only screen.

There is also a 9800gx2 in the system but this is purely for CUDA and not to be used for screens.

xorg.conf is below.

Anyone any clue? This system is Opensuse 11.0.

Code:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeister@builder58)  Wed Nov 26 11:21:13 PST 2008

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  (buildmeister@builder58)  Wed Nov 26 11:21:55 PST 2008

Section "ServerLayout"
    Identifier    "Layout0"
    Screen      0  "Screen0"
    Screen      1  "Screen1" Below "Screen0"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "Module"
    Load          "dbe"
    Load          "extmod"
    Load          "type1"
    Load          "freetype"
    Load          "glx"
EndSection

Section "ServerFlags"
    Option        "Xinerama" "0"
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"
    Identifier    "Monitor0"
    VendorName    "Unknown"
    ModelName      "Unknown"
    HorizSync      28.0 - 33.0
    VertRefresh    43.0 - 72.0
    Option        "DPMS"
EndSection

Section "Monitor"
    Identifier    "Monitor1"
    VendorName    "Unknown"
    ModelName      "Unknown"
    HorizSync      28.0 - 33.0
    VertRefresh    43.0 - 72.0
    Option        "DPMS"
EndSection

Section "Device"
    Identifier    "Device0"
    Driver        "nvidia"
    VendorName    "NVIDIA Corporation"
    BoardName      "nForce 780a SLI"
    BusID          "PCI:2:0:0"
EndSection

Section "Device"
    Identifier    "Device1"
    Driver        "nvidia"
    VendorName    "NVIDIA Corporation"
    BoardName      "GeForce 8600 GT"
    BusID          "PCI:5:0:0"
EndSection

Section "Device"
    Identifier    "Device2"
    Driver        "nvidia"
    VendorName    "NVIDIA Corporation"
    BoardName      "GeForce 9800 GX2"
    BusID          "PCI:8:0:0"
EndSection

Section "Device"
    Identifier    "Device3"
    Driver        "nvidia"
    VendorName    "NVIDIA Corporation"
    BoardName      "GeForce 9800 GX2"
    BusID          "PCI:9:0:0"
EndSection

Section "Screen"
    Identifier    "Screen0"
    Device        "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection    "Display"
        Depth      24
    EndSubSection
EndSection

Section "Screen"
    Identifier    "Screen1"
    Device        "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    SubSection    "Display"
        Depth      24
    EndSubSection
EndSection


sniff 01-06-09 01:32 PM

Re: Second Xserver blank but mouse works
 
Few updates.

If I press ctrl+alt+F8 I get what should be the second screen with a flashing curser in the top corner on the correct monitor.

The following appears in the Xorg.0.log and Xorg.1.log files frequently.
Code:

(II) Screen 1 shares mem & io resources
It looks like the first Xserver is using the seconds resourdes or something? There are no meaningful error messages in the logs.

sniff 01-06-09 04:00 PM

Given in to four separate Xscreens and Xinerama
 
I gave up on the separate Xscreen with login etc. So I now have 4 Xscreen connected by Xinerama. It does much the same job...


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