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[Bryce Harrington <bryce@xxxxxxxxxxxxxxxxxxx>]

** Description changed:

  Binary package hint: xorg
  
  This is a Ubuntu 9.04 Jaunty install with NVidia Driver version 180.44.
  
  Ubuntu 9.04 Jaunty did not come with the 180.44 drivers and I installed
  them through the Synaptic Package Manager.
  
  Initially, after installing the 180.44 drivers, all resolutions capable
  of my monitor and graphics card were correct.
  
  However, randomly, and after running full screen video games, the
  resolutions listed in the NVidia X Server Setting utility inexplicably
  changed. For example the highest resolution  of my monitor is 1600x1200
  which is correctly reported in the utility, but either randomly or after
  running a full screen game, the highest resolution changed to say
  1384x786. Just as inexplicably, the resolutions changed back to the
  original settings I had them on, 1280x1024.
  
  I first tried to adjust the problem by entering
  
  SubSection "Display"
  Depth 24
  Modes "1440x900"
  EndSubSection
  
  in the Section "Screen" of /etc/X11/xorg.conf file.
  
  This prompted the NVidia X Server Setting utility into action and it
  generated a good deal of information about my keyboard, mouse, graphics
  card and monitor.
  
  This is the xorg.conf file before I entered the SubSection "Display"
  informations:
  
  # xorg.conf (X.Org X Window System server configuration file)
  #
  # This file was generated by dexconf, the Debian X Configuration tool, using
  # values from the debconf database.
  #
  # Edit this file with caution, and see the xorg.conf manual page.
  # (Type "man xorg.conf" at the shell prompt.)
  #
  # This file is automatically updated on xserver-xorg package upgrades *only*
  # if it has not been modified since the last upgrade of the xserver-xorg
  # package.
  #
  # Note that some configuration settings that could be done previously
  # in this file, now are automatically configured by the server and settings
  # here are ignored.
  #
  # If you have edited this file but would like it to be automatically updated
  # again, run the following command:
  #   sudo dpkg-reconfigure -phigh xserver-xorg
  
  Section "Monitor"
  	Identifier	"Configured Monitor"
  EndSection
  
  Section "Screen"
  	Identifier	"Default Screen"
  	Monitor		"Configured Monitor"
  	Device		"Configured Video Device"
  	DefaultDepth	24
  EndSection
  
  Section "Module"
  	Load	"glx"
  EndSection
  
  Section "Device"
  	Identifier	"Configured Video Device"
  	BusID "PCI:1:0:0"
  	Driver	"nvidia"
  	Option	"NoLogo"	"True"
  	Option "sli" "auto"
  EndSection
  
  Note: I entered the sli option a few months ago.
  
  This is the xorg.conf file after entering
  
  SubSection "Display"
  Depth 24
  Modes "1440x900"
  EndSubSection
  
  in the Section "Screen" of /etc/X11/xorg.conf file . . . .
  
  # 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     "Layout0"
      Screen      0  "Screen0" 0 0
      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"
      # HorizSync source: edid, VertRefresh source: edid
      Identifier     "Monitor0"
      VendorName     "Unknown"
      ModelName      "Envision EFT9x0 Series"
      HorizSync       30.0 - 98.0
      VertRefresh     50.0 - 160.0
      Option         "DPMS"
  EndSection
  
  Section "Device"
      Identifier     "Device0"
      Driver         "nvidia"
      VendorName     "NVIDIA Corporation"
      BoardName      "GeForce 8600 GT"
      BusID          "PCI:1:0:0"
  EndSection
  
  Section "Screen"
      Identifier     "Screen0"
      Device         "Device0"
      Monitor        "Monitor0"
      DefaultDepth    24
      Option         "TwinView" "0"
      Option         "metamodes" "1280x1024 +0+0"
      SubSection     "Display"
          Depth       24
      EndSubSection
  EndSection
  
  
  After saving this file to /etc/Xll, the monitor resolution is stable.
  
  The question or "bug" is in how the appropriate and applicable
  applications did not correctly configure the xorg.conf file initially.
  
  ProblemType: Bug
  Architecture: i386
  DistroRelease: Ubuntu 9.04
  NonfreeKernelModules: nvidia
  Package: xorg 1:7.4~5ubuntu18
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, user)
   LANG=en_US.UTF-8
  ProcVersion: Linux version 2.6.28-15-generic (buildd@rothera) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #52-Ubuntu SMP Wed Sep 9 10:49:34 UTC 2009
  SourcePackage: xorg
  Uname: Linux 2.6.28-15-generic i686
+ 
+ [lspci]
+ 00:00.0 Memory controller [0580]: nVidia Corporation CK804 Memory Controller [10de:005e] (rev a3)
+     	Subsystem: ASUSTeK Computer Inc. Device [1043:815a]
+ 01:00.0 VGA compatible controller [0300]: nVidia Corporation GeForce 8600 GT [10de:0402] (rev a1)
+     	Subsystem: XFX Pine Group Inc. Device [1682:2285]
+ 02:00.0 VGA compatible controller [0300]: nVidia Corporation GeForce 8600 GT [10de:0402] (rev a1)
+     	Subsystem: XFX Pine Group Inc. Device [1682:2285]

-- 
Screen resolution settings and available resolutions change randomly (it seems) and after runing full screen games
https://bugs.launchpad.net/bugs/442420
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