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-   -   TwinView, fullscreen on TV (http://www.nvnews.net/vbulletin/showthread.php?t=2650)

brosen 10-08-02 08:00 AM

TwinView, fullscreen on TV
I've managed to get both crt and tv working, but have problems with the resolution on the tv.

At 1024x768,800x600 the screen doesn't fit on the TV (which is as it should be I assume) but NULL,800x600 or 800x600,800x600 also give me a larger virtual screen. Not very useful for watching those movies!

Any suggestions?


looks like the attachment didn't make it through.

# 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"

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

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

Section "InputDevice"
Identifier "Keyboard1"
Driver "Keyboard"
Option "XkbModel" "pc105"
Option "XkbLayout" "se"
Option "XkbOptions" ""

Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/psaux"
Option "ZAxisMapping" "4 5"

Section "Monitor"
Identifier "monitor1"
VendorName "Plug'n Play"
HorizSync 30-70
VertRefresh 50-120

# Sony Vaio C1(X,XS,VE,VN)?
# 1024x480 @ 85.6 Hz, 48 kHz hsync
ModeLine "1024x480" 65.00 1024 1032 1176 1344 480 488 494 563 -hsync -vsync

# 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

Section "Monitor"
Identifier "tv"
VendorName "Sony"
HorizSync 30-50
VertRefresh 60

Section "Device"
Identifier "device1"
VendorName "nVidia Corporation"
BoardName "NVIDIA GeForce2 DDR (generic)"
Driver "nvidia"
Option "DPMS"

Section "Screen"
Identifier "screen1"
Device "device1"
Monitor "monitor1"
DefaultColorDepth 24
Option "TwinView"
Option "SecondMonitorHorizSync" "30-50"
Option "SecondMonitorVertRefresh" "60"
Option "MetaModes" "1024x768,800x600;NULL,800x600"
Option "TwinViewOrientation" "clone"
Option "ConnectedMonitor" "crt,tv"
Option "TVStandard" "PAL-B"

Subsection "Display"
Depth 8
Modes "1024x768" "800x600" "640x480"

Subsection "Display"
Depth 15
Modes "1024x768" "800x600" "640x480"

Subsection "Display"
Depth 16
Modes "1024x768" "800x600" "640x480"

Subsection "Display"
Depth 24
Modes "1024x768" "800x600" "640x480"

Section "ServerLayout"
Identifier "layout1"
InputDevice "Keyboard1" "CoreKeyboard"
InputDevice "Mouse1" "CorePointer"
Screen "screen1"

carpediem 10-08-02 09:38 AM

TwinView will compute the virtual desktop size by creating a bounding box using the largest mode listed in metamodes ... so if your metamode is :
Option "MetaModes" "1024x768,800x600; 800x600,800x600~

The bounding box is 2048x1536 ... (xinerama doesn't allow you to have a irregular bounding box) ... so the second head will use 800x600 but will pan across a 1024x768 area.

Even if you switch modes using <ctrl>+<alt>+<-> ... the desktop size don't change .. so both heads will pan across a 1024x768 area.

To solve it, you must run two X ... one in your TV and another in your CRT ... using the xnested or xggi xservers .....

Maybe you can find more info here:

brosen 10-08-02 10:29 AM

Thanks, hopefully I'll be able to make some sense of Xnest, but looking at it I'm doubtful ;-)


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