I've been playing around with this for a while now, but can't get it to work. Hopefully someone here can help. I have the following hardware: ATI Radeon 9600 video card with two outputs (one digital and one analog) with two monitors: an LCD (IBM L200P) and a CRT (Relysis RE767B). I'd like to keep the resolution on my LCD screen (my primary monitor) high at 1600x1200. However, the CRT cannot handle such a resolution, so I have to go with something smaller like 1024x768. It seems that no matter what I try, both monitors try to display the same resolution, 1600x1200, and the CRT doesn't work. Here is my not-working xorg.conf:


# File generated by XFdrake.

# **********************************************************************
# Refer to the XF86Config man page for details about the format of
# this file.
# **********************************************************************

Section "Files"
# Multiple FontPath entries are allowed (they are concatenated together)
# By default, Mandrake 6.0 and later now use a font server independent of
# the X server to render fonts.
FontPath "unix/:-1"
EndSection

Section "ServerFlags"
#DontZap # disable <Crtl><Alt><BS> (server abort)
#DontZoom # disable <Crtl><Alt><KP_+>/<KP_-> (resolution switching)
AllowMouseOpenFail # allows the server to start up even if the mouse does not work
EndSection

Section "Module"
Load "dbe" # Double-Buffering Extension
Load "v4l" # Video for Linux
Load "extmod"
Load "type1"
Load "freetype"
Load "glx" # 3D layer
Load "dri" # direct rendering
EndSection

Section "InputDevice"
Identifier "Keyboard1"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "en_US"
Option "XkbOptions" "compose:rwin"
EndSection

Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "ExplorerPS/2"
Option "Device" "/dev/mouse"
Option "ZAxisMapping" "6 7"
EndSection

Section "Device"
Identifier "device_dvi"
VendorName "ATI Technologies Inc."
BoardName "ATI Radeon (fglrx)"
Driver "fglrx"
BusID "PCI:1:0:0"
Option "VBERestore" "TRUE"
Option "MonitorLayout"
Screen 0

# === disable PnP Monitor ===
#Option "NoDDC"
# === disable/enable XAA/DRI ===
Option "no_accel" "no"
Option "no_dri" "no"
# === FireGL DDX driver module specific settings ===
# === Screen Management ===
Option "DesktopSetup" "0x00000000"
Option "MonitorLayout" "AUTO, AUTO"
Option "IgnoreEDID" "off"
Option "HSync2" "unspecified"
Option "VRefresh2" "unspecified"
Option "ScreenOverlap" "0"
# === TV-out Management ===
Option "NoTV" "yes"
Option "TVStandard" "NTSC-M"
Option "TVHSizeAdj" "0"
Option "TVVSizeAdj" "0"
Option "TVHPosAdj" "0"
Option "TVVPosAdj" "0"
Option "TVHStartAdj" "0"
Option "TVColorAdj" "0"
Option "GammaCorrectionI" "0x00000000"
Option "GammaCorrectionII" "0x00000000"
# === OpenGL specific profiles/settings ===
Option "Capabilities" "0x00000000"
# === Video Overlay for the Xv extension ===
Option "VideoOverlay" "on"
# === OpenGL Overlay ===
# Note: When OpenGL Overlay is enabled, Video Overlay
# will be disabled automatically
Option "OpenGLOverlay" "off"
Option "CenterMode" "off"
# === QBS Support ===
Option "Stereo" "off"
Option "StereoSyncEnable" "1"
# === Misc Options ===
Option "UseFastTLS" "0"
Option "BlockSignalsOnLock" "on"
Option "UseInternalAGPGART" "no"
Option "ForceGenericCPU" "no"
# === FSAA ===
Option "FSAAScale" "1"
Option "FSAADisableGamma" "no"
Option "FSAACustomizeMSPos" "no"
Option "FSAAMSPosX0" "0.000000"
Option "FSAAMSPosY0" "0.000000"
Option "FSAAMSPosX1" "0.000000"
Option "FSAAMSPosY1" "0.000000"
Option "FSAAMSPosX2" "0.000000"
Option "FSAAMSPosY2" "0.000000"
Option "FSAAMSPosX3" "0.000000"
Option "FSAAMSPosY3" "0.000000"
Option "FSAAMSPosX4" "0.000000"
Option "FSAAMSPosY4" "0.000000"
Option "FSAAMSPosX5" "0.000000"
Option "FSAAMSPosY5" "0.000000"
EndSection

Section "Device"
Identifier "device_vga"
Driver "fglrx"
BusID "PCI:1:0:0"
Screen 1
EndSection

Section "Monitor"
Identifier "monitor_dvi"
VendorName "Plug'n Play"
ModelName "IBM L200P"
HorizSync 31-80
VertRefresh 56-85
Option "DPMS"
EndSection

Section "Monitor"
Identifier "monitor_vga"
VendorName "Relisys"
ModelName "Relisys RE767"
HorizSync 30-69
VertRefresh 50-150

# TV fullscreen mode or DVD fullscreen output.
# 768x576 @ 79 Hz, 50 kHz hsync
ModeLine "768x576" 50.00 768 832 846 1000 576 590 595 630

# 768x576 @ 100 Hz, 61.6 kHz hsync
ModeLine "768x576" 63.07 768 800 960 1024 576 578 590 616
EndSection

Section "Screen"
Identifier "screen_dvi"
Device "device_dvi"
Monitor "monitor_dvi"
DefaultColorDepth 24

Subsection "Display"
Depth 8
Virtual 1600 1200
EndSubsection

Subsection "Display"
Depth 15
Virtual 1600 1200
EndSubsection

Subsection "Display"
Depth 16
Virtual 1600 1200
EndSubsection

Subsection "Display"
Depth 24
Virtual 1600 1200
EndSubsection
EndSection

Section "Screen"
Identifier "screen_vga"
Device "device_vga"
Monitor "monitor_vga"
DefaultDepth 24
#Option "backingstore"

Subsection "Display"
Depth 24
Modes "1024x768" "800x600" "1600x1200" "1280x960"
ViewPort 0 0 # initial origin if mode is smaller than desktop
# Virtual 1280 1024
EndSubsection
EndSection

Section "ServerLayout"
Identifier "layout1"
InputDevice "Keyboard1" "CoreKeyboard"
InputDevice "Mouse1" "CorePointer"

Screen 0 "screen_dvi" 0 0
Screen 1 "screen_vga" RightOf "screen_dvi"

# Option "Xinerama" "on"
Option "Clone" "off"
EndSection

Section "DRI"
Mode 0666
EndSection

My best guess is to remove the "1600x1200" from the "Display" subsection that belongs to the "screen_vga" Section.

So you'd change this
into this