Twinview Problem!
 

Hi all!!!

I am using my video card (NVIDIA GeForce FX 5200 126Mb AGP) to output both to my monitor and to my tv (through s-video). Now this is the problem: the tv does not accept any resolution above 800x600 (if i put it above it doesnt show anything), and my computer is set on 1024x768. When I turn on the tv, the picture is off (it shows only a portion of what's on the monitor),because of the difference in resolutions.
Is there a way to manipulate the offsets on the tv through the xorg.conf file, or anything else that could be done other than setting the monitor to the same resolution and restarting X every time. Windows XP somehow manages to adjust the tv and the picture shows fine under that - I hope linux has a solution as well!!
Any input is appreciated!

Here is some additional info for my machine: FC2, kernel-2.6.7-1.494.2.2.
xorg.conf:

# Xorg configuration created by system-config-display

Section "ServerLayout"
Identifier "single head configuration"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
RgbPath "/usr/X11R6/lib/X11/rgb"
FontPath "unix/:7100"
EndSection

Section "Module"
Load "dbe"
Load "v4l"
Load "extmod"
Load "fbdevhw"
Load "glx"
Load "record"
Load "freetype"
Load "type1"
EndSection

Section "InputDevice"

Identifier "Keyboard0"
Driver "keyboard"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "yes"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "SyncMaster"
DisplaySize 320 240
HorizSync 30.0 - 71.0
VertRefresh 50.0 - 160.0
EndSection

Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "Videocard vendor"
BoardName "NVIDIA GeForce FX (generic)"
Option "TwinView" "true"
Option "TVStandard" "NTSC-M"
Option "TVOutFormat" "SVIDEO"
Option "SecondMonitorHorizSync" "30-50"
Option "SecondMonitorVertRefresh" "60"
Option "TwinViewOrientation" "CLONE"
Option "ConnectedMonitor" "CRT, TV"
Option "MetaModes" "1024x768,800x600"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1024x768" "800x600" "640x480"
EndSubSection
EndSection

Section "DRI"
Group 0
Mode 0666
EndSection

Just check out ftp://download.nvidia.com/XFree86/Li...1/README.txt.. It should be under "APPENDIX I: CONFIGURING TWINVIEW".

What you will have to do is to add, among some others things, this line:
Option "MetaModes" "1024x768,800x600"

Yeah I think there's also something or other about virtual resolution that lets you scale stuff. Its hard to remember, but if you give the readme a real thorough read you'll find it.

OK, I do have twinview configured as you can see from the xorg.conf file I have already included Option Metamodes. I am trying to tweak just the resolution on the tv so the picture shows within the limits of the screen.
I have read thoroughly the manual on the nvidia site - there is a short paragraph about virtual screen size which is accomplished by adding +0+0 - 1600x1200 +0+0, 1024x768 +1600+0;. but it is not clear from that what exactly is done to the screen when you add those on. It also mentions "Panning Domain" which is shown in the example as adding 1024x768 @1600x1200, 800x600 @1600x1200 but again its not clear what that does to your screen and what exactly should you set the values to ....
Has anyone had any luck with those?

Sorry, I must have been to quick in replying to your post... After rechecking the readme for the driver, I must conclude that the driver can't do what you want, at least not by itself... As I see it you have to change between different metamodes, this since you can't get the TV to display 1024x768... It is also possible to set a panning domain... The reason that windows is able to display your screen on both the TV and the monitor is that it does some kind of rescaling of the resolution, as I remembers it... Unfortunatly this is not included with the nvidia-driver.

Unfortunatly I have no more insight in the problem than you it seems.

Well it was worth a try :) Ill wait for nvidia to have it implemented then.
Thanks anyway batchman!