Multihead problem[solved]

conflagration · 2007-10-14 11:12:18

Hi community,

i am new on Linux and now trying to set up a 2 monitor system. I use these components: MSI NX8600GT-T2D256EZ , LG Flatron L226WTQ-SF and Vobis TFT17 780 . Each monitor works fine by itself, but i don't get both working at the same time (I want to use Xinerama in Gnome). I tried some tutorials to make it work, but with no success so far. The second monitor just shows "No Signal". Do i have to do any configurations except the ones in xorg.conf? Here is my xorg.conf :

Section "ServerLayout"
    Identifier     "Xorg Configured"
    Screen       0 "Screen0" 0 0
    Screen       1 "Screen1" LeftOf "Screen0"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "USB Mouse" "CorePointer"
EndSection

Section "Files"
    RgbPath         "/usr/share/X11/rgb"
    ModulePath      "/usr/lib/xorg/modules"
    FontPath        "/usr/share/fonts/misc:unscaled"
    FontPath        "/usr/share/fonts/misc"
    FontPath        "/usr/share/fonts/75dpi:unscaled"
    FontPath        "/usr/share/fonts/75dpi"
    FontPath        "/usr/share/fonts/100dpi:unscaled"
    FontPath        "/usr/share/fonts/100dpi"
    FontPath        "/usr/share/fonts/PEX"
    FontPath        "/usr/share/fonts/cyrillic"
    FontPath        "/usr/share/fonts/Type1"
    FontPath        "/usr/share/fonts/ttf/western"
    FontPath        "/usr/share/fonts/ttf/decoratives"
    FontPath        "/usr/share/fonts/truetype"
    FontPath        "/usr/share/fonts/truetype/openoffice"
    FontPath        "/usr/share/fonts/truetype/ttf-bitstream-vera"
    FontPath        "/usr/share/fonts/latex-ttf-fonts"
    FontPath        "/usr/share/fonts/defoma/CID"
    FontPath        "/usr/share/fonts/defoma/TrueType"
EndSection

Section "Module"
    Load           "ddc"  # ddc probing of monitor
    Load           "dbe"
    Load           "extmod"
    Load           "glx"
    Load           "bitmap" # bitmap-fonts
    Load           "type1"
    Load           "freetype"
    Load           "record"
EndSection

Section "ServerFlags"
    Option         "AllowMouseOpenFail" "true"
    Option        "Xinerama" "true"
EndSection

Section "InputDevice"
    Identifier     "Keyboard0"
    Driver         "keyboard"
    Option         "CoreKeyboard"
    Option         "XkbRules" "xorg"
    Option         "XkbModel" "pc105"
    Option         "XkbLayout" ""
    Option         "XkbVariant" ""
EndSection

Section "InputDevice"
    Identifier     "Serial Mouse"
    Driver         "mouse"
    Option         "Protocol" "Microsoft"
    Option         "Device" "/dev/ttyS0"
    Option         "Emulate3Buttons" "true"
    Option         "Emulate3Timeout" "70"
    Option         "SendCoreEvents" "true"
EndSection

Section "InputDevice"
    Identifier     "PS/2 Mouse"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "ZAxisMapping" "4 5"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "true"
    Option         "Emulate3Timeout" "70"
    Option         "SendCoreEvents" "true"
EndSection

Section "InputDevice"
    Identifier     "USB Mouse"
    Driver         "mouse"
    Option         "Device" "/dev/input/mice"
    Option         "SendCoreEvents" "true"
    Option         "Protocol" "IMPS/2"
    Option         "ZAxisMapping" "4 5"
    Option         "Buttons" "5"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "LG"
    ModelName      "L226WTQ"
    HorizSync       30.0 - 83.0
    VertRefresh     56.0 - 75.0
    ModeLine       "1680x1050" 119.0 1680 1728 1760 1840 1050 1053 1059 1080 -hsync +vsync
    Option         "dpms"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    VendorName       "Vobis"
    ModelName       "TFT17 780"
    HorizSync       28.0 - 78.0
    VertRefresh     50.0 - 75.0
    ModeLine       "640x350" 31.5 640 672 736 832 350 382 385 445 +hsync -vsync
    ModeLine       "640x400" 31.5 640 672 736 832 400 401 404 445 -hsync +vsync
    ModeLine       "720x400" 35.5 720 756 828 936 400 401 404 446 -hsync +vsync
    ModeLine       "640x480" 25.2 640 656 752 800 480 490 492 525 -hsync -vsync
    ModeLine       "640x480" 31.5 640 664 704 832 480 489 491 520 -hsync -vsync
    ModeLine       "640x480" 31.5 640 656 720 840 480 481 484 500 -hsync -vsync
    ModeLine       "640x480" 36.0 640 696 752 832 480 481 484 509 -hsync -vsync
    ModeLine       "800x600" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync
    ModeLine       "800x600" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
    ModeLine       "800x600" 50.0 800 856 976 1040 600 637 643 666 +hsync +vsync
    ModeLine       "800x600" 49.5 800 816 896 1056 600 601 604 625 +hsync +vsync
    ModeLine       "800x600" 56.3 800 832 896 1048 600 601 604 631 +hsync +vsync
    ModeLine       "1024x768" 44.9 1024 1032 1208 1264 768 768 776 817 +hsync +vsync interlace
    ModeLine       "1024x768" 65.0 1024 1048 1184 1344 768 771 777 806 -hsync -vsync
    ModeLine       "1024x768" 75.0 1024 1048 1184 1328 768 771 777 806 -hsync -vsync
    ModeLine       "1024x768" 78.8 1024 1040 1136 1312 768 769 772 800 +hsync +vsync
    ModeLine       "1024x768" 94.5 1024 1072 1168 1376 768 769 772 808 +hsync +vsync
    ModeLine       "1152x864" 108.0 1152 1216 1344 1600 864 865 868 900 +hsync +vsync
    ModeLine       "1280x960" 108.0 1280 1376 1488 1800 960 961 964 1000 +hsync +vsync
    ModeLine       "1280x960" 148.5 1280 1344 1504 1728 960 961 964 1011 +hsync +vsync
    ModeLine       "1280x1024" 108.0 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
    ModeLine       "1280x1024" 135.0 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync
    ModeLine       "1280x1024" 157.5 1280 1344 1504 1728 1024 1025 1028 1072 +hsync +vsync
    ModeLine       "640x480" 43.2 640 680 744 848 480 481 484 509 -hsync +vsync
    ModeLine       "768x576" 35.0 768 792 872 976 576 577 580 597 -hsync +vsync
    ModeLine       "768x576" 42.9 768 800 880 992 576 577 580 601 -hsync +vsync
    ModeLine       "768x576" 45.5 768 808 888 1008 576 577 580 602 -hsync +vsync
    ModeLine       "768x576" 51.8 768 808 888 1008 576 577 580 605 -hsync +vsync
    ModeLine       "768x576" 62.6 768 816 896 1024 576 577 580 611 -hsync +vsync
    ModeLine       "800x600" 68.2 800 848 936 1072 600 601 604 636 -hsync +vsync
    ModeLine       "1024x768" 113.3 1024 1096 1208 1392 768 769 772 814 -hsync +vsync
    ModeLine       "1152x864" 81.6 1152 1216 1336 1520 864 865 868 895 -hsync +vsync
    ModeLine       "1152x864" 119.7 1152 1224 1352 1552 864 865 868 907 -hsync +vsync
    ModeLine       "1152x864" 143.5 1152 1232 1360 1568 864 865 868 915 -hsync +vsync
    ModeLine       "1280x960" 124.5 1280 1368 1504 1728 960 961 964 1001 -hsync +vsync
    ModeLine       "1280x960" 129.9 1280 1368 1504 1728 960 961 964 1002 -hsync +vsync
    ModeLine       "1280x960" 179.0 1280 1376 1520 1760 960 961 964 1017 -hsync +vsync
    ModeLine       "1280x1024" 191.0 1280 1376 1520 1760 1024 1025 1028 1085 -hsync +vsync
    Option         "DPMS" "true"
#    HorizSync    28.0 - 78.0 # Warning: This may fry very old Monitors
EndSection

Section "Device"
    Identifier     "Card0"
    Driver         "nvidia"
    Option       "NVAgp"    "3"
    Option       "RenderAccel"    "true"
    Option       "AllowGLXWithComposite"    "true"
    Option       "TripleBuffer"    "true"
    VendorName     "All"
    BoardName      "All"
    Screen       0
EndSection

Section "Device"
    Identifier     "Card1"
    Driver       "nvidia"
    Option        "NVAgp"    "3"
    Option       "RenderAccel"    "true"
    Option       "AllowGLXWithComposite"    "true"
    Option       "TripleBuffer"    "true"
    VendorName       "All"
    BoardName       "All"
    Screen       1
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Card0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       8
        Modes      "1680x1050" "1280x800" "1024x768"
    EndSubSection
    SubSection     "Display"
        Depth       15
        Modes      "1680x1050" "1280x800" "1024x768"
    EndSubSection
    SubSection     "Display"
        Depth       16
        Modes      "1680x1050" "1280x800" "1024x768"
    EndSubSection
    SubSection     "Display"
        Depth       24
        Modes      "1680x1050" "1280x800" "1024x768"
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Card1"
    Monitor        "Monitor1"
    DefaultDepth   16
    SubSection     "Display"
        Depth       8
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection     "Display"
        Depth       15
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection     "Display"
        Depth       16
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection     "Display"
        Depth       24
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
EndSection

Section "Extensions"
    Option        "Composite" "Enable"
EndSection

I am thankful for any help.

Last edited by conflagration (2007-10-14 16:50:55)

pooflinger · 2007-10-14 12:18:10

http://nvidia.custhelp.com/cgi-bin/nvid … _topview=1

conflagration · 2007-10-14 14:23:34

Thank you very much, pooflinger. Now both monitors are working fine. The only thing i want to change is, that the monitors should be treated separately, not as "One Big Monitor" (i.e. if i maximize Firefox, it should just fill out the screen where it's just in, not both). Also, i don't want the whole workspace to be separated, i want one Monitor as my normal workspace and the second one to open a browser, a pdf or whatever simultaneous (so i.e. i can open a tutorial on the smaller screen while working on the main screen). The NVidia tutorial didn't say anything about that (or i didn't understand it). Is this possible?

pooflinger · 2007-10-14 14:43:03

Yes, it is possible and probably the most common setup. I use it too. Here's my xorg.conf:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeister@builder3)  Wed Jun 13 18:39:30 PDT 2007

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

Section "Files"
    RgbPath         "/usr/lib/X11/rgb"
EndSection

Section "Module"
    Load           "dbe"
    Load           "extmod"
    Load           "type1"
    Load           "freetype"
    Load           "glx"
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       30.0 - 110.0
    VertRefresh     50.0 - 150.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView"
    Option         "MetaModes" "1280x1024,1280x1024"
    Option         "SecondMonitorHorizSync" "30.0 - 110.0"
    Option         "SecondMonitorVertRefresh" "50.0 - 150.0"
    Option         "AddARGBGLXVisuals" "True"
    SubSection     "Display"
        Depth       24
        Modes      "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
EndSection

Section "Extensions"
    Option         "Composite" "Enable"
EndSection

As you can see from the top, it was "generated by nvidia-xconfig" which is a runnable thing. Note that this is NOT xinerama but nVidias "TwinView" that does exactly what you want it to. Xinerama, I think, regards your displays as one. If you want to take it even further, you can run two X instances that are "unaware" of one another, only the mouse can move between them.

See with your manufacturer which are your "HorizSync" and "VertRefresh".

Happy multiheading

Last edited by pooflinger (2007-10-14 14:48:44)

conflagration · 2007-10-14 16:52:05

Thank you again, pooflinger, now everything is as it should be.

Arch Linux

#1 2007-10-14 11:12:18

Multihead problem[solved]

#2 2007-10-14 12:18:10

Re: Multihead problem[solved]

#3 2007-10-14 14:23:34

Re: Multihead problem[solved]

#4 2007-10-14 14:43:03

Re: Multihead problem[solved]

#5 2007-10-14 16:52:05

Re: Multihead problem[solved]

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