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Old 08-12-2011, 05:43 AM   #1
tradet
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Registered: May 2010
Posts: 20

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Nvidia dual monitor setup problems getting second monitor to work


Hi,

I've got two identical 21,5" widescreen monitors connect via dvi to a single nvidia geforce 550GTX Ti.

From a fresh slackware install both monitors worked in the console before starting X, but after I installed the newest nvidia driver (280.13) the second monitor is dead in it's tracks. I disabled the nuveau driver via an option from nvidias installer if that matters.

I've tried to edit my xorg.conf and it looks like this:
Code:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 280.13  (buildmeister@swio-display-x86-rhel47-03.nvidia.com)  Wed Jul 27 17:15:58 PDT 2011

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

Section "Files"
    FontPath        "/usr/lib64/X11/fonts/misc/:unscaled"
    FontPath        "/usr/lib64/X11/fonts/100dpi/:unscaled"
    FontPath        "/usr/lib64/X11/fonts/75dpi/:unscaled"
    FontPath        "/usr/lib64/X11/fonts/misc/"
    FontPath        "/usr/lib64/X11/fonts/Type1/"
    FontPath        "/usr/lib64/X11/fonts/Speedo/"
    FontPath        "/usr/lib64/X11/fonts/100dpi/"
    FontPath        "/usr/lib64/X11/fonts/75dpi/"
    FontPath        "/usr/lib64/X11/fonts/cyrillic/"
    FontPath        "/usr/lib64/X11/fonts/TTF/"
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"
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
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
I tried to add a Screen1 and a Monitor1 but with little result.

My end goal is to run xmonad dual screen with one tilted in portrait mode, but I figure the first step is to make the monitor display something.

I'm currently running xfce but I plan to switch to xmonad completely or run xmonad purely as a window manager.

I'm running a fresh install of slackware 13.37 64bit with multilib installed.

I tried to search for dual screens and monitors and I did find a lot of links but I didn't manage to find anything that works for me.

When I ran 'nvidia-settings' I got the error: The control display is undefined; please run 'nvidia-settings --help' for usage information.

But I didn't get much from the help there..

Any help and tips are very much welcome,

Thanks in advance.
 
Old 08-12-2011, 05:55 AM   #2
sycamorex
LQ Veteran
 
Registered: Nov 2005
Location: London
Distribution: Slackware64-current
Posts: 5,405
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Remove your xorg.conf (back it up first), reinstall nvidia binary blob so that it'd create a clean xorg.conf and then run nvidia-settings (as root).
 
1 members found this post helpful.
Old 08-12-2011, 06:38 AM   #3
tradet
LQ Newbie
 
Registered: May 2010
Posts: 20

Original Poster
Rep: Reputation: 0
Thank you, that did the trick!
 
  


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