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Old 10-11-2004, 01:41 PM   #1
LQ Newbie
Registered: Jul 2004
Posts: 15

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blank window when displaying movies through video-projector


I need to display some movies in a presentation using a video-projector connected to my laptop. The problem is that the movie is well displayed on the laptop screen, but I get a uniformly blue window on the screen projected (while the rest of the presentation is displayed correctly. Only movies (avi, DVD...) are badly displayed). I get the same result using either mplayer or xine. Note that the result is the same if the movie is displayed in a window or in fullscreen.
I also tried with my desktop monitor and got the same effect.

If this might help you to figure out what the problem is (and perhaps you have a solution :-), I have a Dell inspiron 4100, with a Nvidia Geforce2 Go video card, and I'm running Mandrake 9.0.

Thank you very much by advance for any help!

Below is my XF86Config-4 file (don't know if this can help...):

# 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" "us"
Option "XkbOptions" ""

Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "PS/2"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons"
Option "Emulate3Timeout" "50"

Section "InputDevice"
Identifier "Mouse2"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/usbmouse"
Option "ZAxisMapping" "4 5"

Section "Monitor"
Identifier "monitor1"
VendorName "Generic"
ModelName "Flat Panel 1400x1050"
HorizSync 31.5-90
VertRefresh 59-75

# 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 "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

Subsection "Display"
Depth 8
Modes "1400x1050" "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"

Subsection "Display"
Depth 15
Modes "1400x1050" "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"

Subsection "Display"
Depth 16
Modes "1400x1050" "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"

Subsection "Display"
Depth 24
Modes "1400x1050" "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"

Section "ServerLayout"
Identifier "layout1"
InputDevice "Keyboard1" "CoreKeyboard"
InputDevice "Mouse1" "CorePointer"
InputDevice "Mouse2" "SendCoreEvents"
Screen "screen1"
Old 07-10-2007, 04:21 PM   #2
LQ Newbie
Registered: Jul 2007
Posts: 1

Rep: Reputation: 0
easy fix

I had the same problem; doing the following (from -- search for Additional_options_for_the_radeon_driver ) worked for me on my Thinkpad T42:

Add this line:
Option "MonitorLayout" "LVDS,NONE"
to the Device section in your /etc/X11/xorg.conf

to quote:

> First of all, suppose you want to plug in your laptop into a
> projector occasionally, but you don't want to restart X when you do
> so. The easiest thing is to not use any of the CRT2 options and use
> Option "MonitorLayout" "LVDS,NONE"
> The vga port will carry the same signal as the laptop display (at
> least on my T42p). If the projector does not support the
> resolution, you can change it using xrandr.


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