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Old 12-13-06, 05:30 PM   #1
ladybug84
Registered User
 
Join Date: Dec 2006
Posts: 1
Default laptop displaying on an lcd projector

I'm desperately trying to get my laptop to display on an lcd projector,
and I'm kinda able to do that, but I'm not quite there yet.

The laptop is a sony vaio VGN-S470P with a GeForceGo 6200 nvidia card.
The projector is a Hitachi InFocus LP840-A which can do 1600x1200. The
laptop can only do 1200x800.

So far I can either

(a) display on the lcd only, but not on the laptop.
(b) display on the lcd AND the laptop, but the display spans both the lcd
and the laptop. For instance if the mouse is in the lcd projector screen,
I don't see it on the laptop. But if I move the mouse all the way to the
right, it leaves the projector screen and enters the laptop.

I need this for a presentation (my PhD thesis ) and obviously I want
the display to be identical on the wall and on my laptop.


I tried to add Option "Clone" on, I messed with nvidia-settings I tried
nvidia-xconfig --twinview, --separate-x-screens, --no-separate-x-screens
nothing worked. I'm probably not using the right options.

This is what xdpyinfo says:


default screen number: 0
number of screens: 1

screen #0:
dimensions: 2304x800 pixels (780x271 millimeters)
resolution: 75x75 dots per inch


Should I make one more Screeen section in xorg.conf? Do I configure dual
monitor?


Could anybody please help? What options make the card display the
same thing on both screens? Thanks.

Oh, yeah, the presentation is tomorrow.



This is the xorg.config file that I have right now, which makes the
display span both screens (the projector and the laptop).

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (buildmeister@builder3) Thu Nov 9 17:55:20 PST
2006

# Xorg configuration created by system-config-display

Section "ServerLayout"

# Identifier "Default Layout"
Identifier "single head configuration"
Screen 0 "Screen0"
Screen 1 "Screen0 (2nd)" RightOf "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Synaptics" "CorePointer"
Option "Clone" "on"
EndSection

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

Section "Module"
Load "glx"
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Synaptics"
Driver "synaptics"
Option "Device" "/dev/input/mice"
Option "Protocol" "auto-dev"
Option "Emulate3Buttons" "yes"
Option "LeftEdge" "120"
Option "RightEdge" "830"
Option "TopEdge" "120"
Option "BottomEdge" "650"
Option "FingerLow" "14"
Option "FingerHigh" "15"
Option "MaxTapMove" "110"
Option "VertScrollDelta" "20"
Option "HorizScrollDelta" "20"
Option "MinSpeed" "0.3"
Option "MaxSpeed" "0.75"
EndSection

Section "Monitor"

### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Monitor 800x600"
HorizSync 31.5 - 35.1
VertRefresh 50.0 - 61.0
Option "dpms"
EndSection

Section "Device"
Identifier "Videocard0"
Driver "nvidia"
BoardName "GeForce Go 6200"
BusID "PCI:1:0:0"
Screen 0
EndSection

Section "Device"
Identifier "Videocard0 (2nd)"
Driver "nvidia"
BoardName "GeForce Go 6200"
BusID "PCI:1:0:0"
Screen 1
EndSection

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor1"
DefaultDepth 24
Option "AddARGBGLXVisual" "True"
Option "DisableGLXRootClipping" "True"
Option "AddARGBGLXVisuals" "True"
Option "TwinView" "True"
Option "MetaModes" "nvidia-auto-select, nvidia-auto-select"
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection

Section "Screen"
Identifier "Screen0 (2nd)"
Device "Videocard0 (2nd)"
Monitor "Monitor1"
DefaultDepth 24
Option "AddARGBGLXVisual" "True"
Option "DisableGLXRootClipping" "True"
Option "AddARGBGLXVisuals" "True"
Option "TwinView" "True"
Option "MetaModes" "nvidia-auto-select, nvidia-auto-select"
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection

Section "Extensions"
Option "Composite"
EndSection
ladybug84 is offline   Reply With Quote
Old 12-13-06, 05:45 PM   #2
netllama
NVIDIA Corporation
 
Join Date: Dec 2004
Posts: 8,763
Default Re: laptop displaying on an lcd projector

You're trying to run two Twinview X screens, which assumes that you have 4 displays (and two GPUs). You need a single Screen section, with the TwinviewOrientation option set to "Clone". See the driver README for more details.

Thanks,
Lonni
netllama is offline   Reply With Quote
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