Hi all !
Although I have a fair experience of computers stretching back over 20+ years (back to DOS 3.1 !) all my experience has been with MS products. Now at the age of 75, I'm trying to set up my first Linux system and finding it has a steep learning curve.
I have so far got a dual boot system (Ubuntu 8.04/Win XP) and this works fine. I mainly do photo-processing and need Win XP to drive my film scanner. PhotoShop runs just fine under Ubuntu/Wine ... so far so good. Now I am trying to set up a dual monitor system.
My main graphics controller is on the motherboard and is an Intel 82945G/GL. I have added a Radeon 7000-series PCI card and hooked my second monitor to this. Under Win XP, this works without a problem. However, under Ubuntu, the graphics display originally defaulted to this card, not the on-board controller. I have found and fixed this particular problem by altering a BIOS setting but still can't get a twin-display under Ubuntu. I understand that I need to modify xorg.conf and have searched this forum but the information found so far doesn't quite seem to match what I am trying to do. I then found a book ("Ubuntu Hacks" by Oxer, Rankin & Childers) which gave pretty detailed instructions and have followed these to produce the file that I have appended below :-
[NB preamble to this file deleted ...]
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "gb"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
EndSection
Section "Device"
Identifier "Intel 82945G Main Monitor"
Driver "Intel 82945G/GL"
BusID "PCI:00:02:0
EndSection
Section "Device"
Identifier "Radeon 7000 Series CRT Monitor"
Driver "Radeon 7000 Series"
BusID "PCI:00:02:1
EndSection
Section "Monitor"
Identifier "Main Monitor"
Option "DPMS"
HorizSync 28-80
VertRefresh 43-75
EndSection
Section "Monitor"
Identifier "CRT Monitor"
Option "DPMS"
HorizSync 28-80
VertRefresh 43-75
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Main Monitor"
Device "Intel 82945G Main Monitor"
DefaultDepth 32
#Additional info added as instruction
SubSection "Display"
Depth 32
Modes "1152x864"
End Subsection
#End additional info
EndSection
Section "Screen"
Identifier "Second Screen"
Monitor "CRT Monitor"
Device "Radeon 7000 Series"
DefaultDepth 32
SubSection "Display"
Depth 32
Modes "1152x864"
End Subsection
EndSection
# Additional info added as recommended
Section "ServerFlags"
Option "Xinerama" "true"
EndSection
# End additional info
Section "ServerLayout"
Identifier "Twin Head"
Screen "Default Screen"
Screen "Second Screen" LeftOf "Default Screen"
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
EndSection
When I try to boot with this xorg.conf, the system protests that it cannot set up the monitors and then defaults to a low-res (800x600) display ... which allows me to recover the situation (Nice design feature !)
Can anyone please either provide an edit of my file or point me towards a GOOD source of information. I know that I am asking a bit much here but I well and truly stuck.
Many thanks to those who read this lengthy post and may I offer my apologies for raising what I am sure is a very simple problem.
Regards to all ...
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