can't play to LCD projector

[Administrator TOOTAI]

Rick Stevens a écrit :

>On Wed, 2006-02-01 at 16:36 -0500, Jason Pinkney wrote:
>  
>
>>Dear List,
>>I'm having trouble using my laptop with an LCD projector
>>(for presentations) ever since I installed FC2.  The current
>>WinXP OS works in this regard.  My old RH7.3 OS also used to
>>work smoothly.  However, that was a custom built
>>kernel from the manufacturer of my laptop, and the FC2 kernel is
>>standard (not customized).
>>
>>I know how to obtain many different resolutions
>>and HFL/VFL's on the laptop screen using xrandr and the F7
>>key.  I know that F8 should toggle the signal to the external monitor.
>>I expected 640x480, 70 Hz Vsync, and 16 bit resolution to work, but the best
>>I can get is the top left corner of my display appearing on the projector
>>(with bad colors).
>>
>>I have tried many different options and settings in my Xorg.conf
>>file, so I hesitate in sending one. 
>>So let me first ask: 
>>is there any reason to expect the FC2/Xorg system to fail where the RH7.3
>>system succeeded?
>>    
>>
>
>Uh, no.  Directing the output between the LCD and external port is
>typically controlled by the BIOS.  However, if you set the display to
>640x480 and press F8 (usually it's a combo of the function key and an
>"F" key--on my Fujitsu it's "[Fn]+F10"), you should see the same stuff
>on both the LCD and the projector. [...]
>  
>
Some laptops have also added the possibility to display only on the 
external ports, which means 3 positions for the Fct key or two different 
key combination.

On my laptop -Asus- I need to connect the external display *before* 
switching on the computer.
-- 
Daniel