Getting three monitors to work with Kubuntu (Ubuntu with KDE) on a Dell Optiplex GX520 – NVidia GeForce4 MX 4000 low profile video card and the onboard Intel 82945G/GZ video card

At work we have three generic LCD monitors mounted on a pole to view monitoring metrics for our Oracle & Sybase database servers. On a previous machine that was cannibalized for another task, we ran Microsoft Windows XP to drive the three monitors.

Last week we were given a hand me down desktop, a Dell Optiplex GX520 with integrated Intel 82945G/GZ video on the motherboard. When we added the NVidia GeForce4 MX 4000 low profile video card, Windows XP for whatever reason was unable to use both video cards. I proposed Kubuntu 9.04 Linux as an alternative. As it was only myself that I had to convince to make the attempt, I was hard pressed to say no 😉

The Intel 82945G/GZ video card will be the primary card and must be attached to “Screen 0” in the ServerLayout section.

The NVidia video card has two connectors:

  1. A standard VGA port driven by a GeForce4 MX 4000 GPU < - Primary nvidia port
  2. A super-video port driven by a Quadro NVS 110M

After the base install of the operating system, XWindows was only able to see the Intel video card. After much tinkering with the /etc/xorg.conf file, I was able to get all three LCD monitors to work with Xinerama. There are a number of gotchas that you might run into:

  • If the integrated Intel video card is set to Auto in the BIOS, the card will be completely disabled. You need to disable Auto
  • You need to know which Nvidia Device entry drives the VGA connector. It must be initialized prior to the S-Video port.
  • Disable NVidia’s TwinView and metamodes option lines in the Screen Section.
  • Use sudo lspci to identify the pci bus ids. You will need to put them in the Device Sections.
  • The integrated Intel video card must use the vesa video driver as the intel video driver will stacktrace when used with xinerama.
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  (buildd@palmer)  Sun Feb  1 20:21:04 UTC 2009

Section "ServerLayout"
    Identifier     "Default Layout"
    Screen      0  "Screen0" 0 0   
    Screen      1  "Screen2" Above "Screen0"
    Screen      2  "Screen1" Above "Screen2"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"    
    Option "Xinerama" "On"                   
EndSection                                   

Section "Files"
    ModulePath      "/usr/lib/xorg/modules/extensions"
    ModulePath      "/usr/lib/xorg/modules/drivers"   
    ModulePath      "/usr/lib/xorg/modules"           
EndSection                                            

Section "Module"
    Load           "glx"
EndSection              

Section "ServerFlags"
    Option         "xinerama" "true"
    Option         "DefaultServerLayout" "Default Layout"
EndSection                                               

Section "InputDevice"
    Identifier     "Keyboard0"
    Driver         "kbd"      
EndSection                    

Section "InputDevice"
    Identifier     "Mouse0"
    Driver         "mouse" 
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"  
EndSection                               

Section "Monitor"
    Identifier     "Configured Monitor"
EndSection                             

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown" 
    ModelName      "CMO CMC 17 AD"
    HorizSync       30.0 - 82.0   
    VertRefresh     50.0 - 75.0   
EndSection                        

Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Unknown" 
    ModelName      "CMO CMC 17 AD"
    HorizSync       30.0 - 82.0   
    VertRefresh     50.0 - 75.0   
EndSection                        

Section "Monitor"
    Identifier     "Monitor2"
    VendorName     "Unknown" 
    ModelName      "Seiko"   
    HorizSync       30.0 - 75.0
    VertRefresh     60.0       
EndSection                     


Section "Device"
    Identifier     "Configured Video Device"
    Driver         "nvidia"                 
    Option         "NoLogo" "True"          
EndSection                                  

Section "Device"
   Identifier  "Device0"
   #Driver      "intel" 
   Driver      "vesa"   
   VendorName  "Intel Corporation"
   BoardName   "82945G/GZ Integrated Graphics Controller"
   BusID       "PCI:0:2:0"                               
   Screen          0                                     
EndSection                                               

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "Quadro NVS 110M"
    BusID          "PCI:4:0:0"
    Screen          1
EndSection

Section "Device"
    Identifier     "Device2"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce4 MX 4000"
    BusID          "PCI:4:0:0"
EndSection

Section "Screen"
    Identifier     "Default Screen"
    Device         "Configured Video Device"
    Monitor        "Configured Monitor"
    DefaultDepth    24
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
    Option         "TwinView" "0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen2"
    Device         "Device2"
    Monitor        "Monitor2"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Extensions"
    Option         "Composite" "on"
EndSection
Share Button

An easy way to view maintenance logs using a browser using Perl & Mason

stats/index.html:

 < %method title>
  DBServices: Update Statistics Logs
 
 <center>
 <h1>Update Statistics Logs</h1>
 < & ‘../.components/ase/maint_logs.comp’, path => "/dbms/sybase/dba/out", file_part => "update_stats" &>
  </center>

stats/dhandler:

  < %perl>
   my $self = shift;
   
   $self->{once_header} = ”;
   $self->{header} = ”;
   $self->{body} = ”;
   $self->{footer} = ”;
   $self->{current_block} = ”;

   my $log_path = ‘/dbms/sybase/dba/out/’;
   my $file = $m->dhandler_arg;

   $file =~ s/\.html$//;

   if ($file =~ m/\.out$/) {
     if (-f $log_path . $file) {
       my $FH;
       if (open($FH, "< ", $log_path . $file)) {
         while (my $line = < $FH>) {
           $m->print($line);
         }
       } else {
         $m->abort(404);
       }
     } else {
       $m->abort(404);
     }
   } elsif ($file =~ m/\.gz$/) {
     if (-f $log_path . $file) {
       my $gFH;
       use Compress::Zlib;
       if ( my $gFH = gzopen($log_path . $file, "rb") ) {
         while ($gFH->gzreadline($_) > 0 ) {
           $m->print($_);
         }
         $gFH->gzclose;
       } else {
         $m->abort(404);
       }
     } else {
       $m->abort(404);
     }
   }

../.components/ase/maint_logs.comp:

  < %args>
   $path
   $file_part
 
 < %perl>
   use File::Find;
   our $part = $file_part;
   our %log_hash = ();
  sub wanted {
     return unless (/$part/);
     my $file_name = $_;
     if ($file_name =~ /$part\_(.+)\.out$/) {
       $log_hash{$1}{current} = $file_name;
     } elsif ($file_name =~ m/$part\_(.+)\.out\.(\d+)\.gz$/) {
       if ($1 && $2) {
         $log_hash{$1}{archive}{$2} = {
           file_name  => $file_name,
           file_date  => scalar localtime( (stat($File::Find::name))[9] )
         };
       }
     }
   }
   find(\&wanted, $path);
   $m->comp(‘.print_table_head’);
   foreach my $server (sort { lc($a) cmp lc($b) } keys %log_hash) {
     $m->comp(‘.print_table’,
       server     => $server,
       current_log    => $log_hash{$server}{current},
       archive_ref    => \%{ $log_hash{$server}{archive} }
     );
   }
   $m->comp(‘.print_table_tail’);
 
 < %def .print_table_head>
 <table BORDER=1 BORDERCOLOR="BLACK">
   <th>Server</th>
   <th>Current Log</th>
   <th>Archived Logs</th>
 
 < %def .print_table>
   < %args>
     $server
     $current_log
     $archive_ref
   
   <tr>
     <td>< % $server %></td>
     <td>< % sprintf "<a href=’%s’>%s", $current_log . ".html", $current_log %></td>
     <td>< %perl>
         my $str = "";

         foreach my $archive_num (sort { $a < => $b } keys %$archive_ref ) {
           $str .= sprintf "<a href=’%s’>%s</a> (%s)",
             $archive_ref->{$archive_num}{file_name} . ".html",
             $archive_ref->{$archive_num}{file_name},
             $archive_ref->{$archive_num}{file_date};
         }
         $m->print($str);
     </td>
   </tr>
 
 < %def .print_table_tail>
 </table>
Share Button