I have an ASUS X20S laptop with a dual boot Kubuntu 9.04 (KDE 4.3.2) and Vista. When using Vista, I am able to plug the laptop to one of the projectors at the university and use my slide shows to teach my classes. However, when I am using Linux/KDE I cannot make it work. In Windows, I have to press Fn+F8 to toggle between different modes: only my screen working, only the projector working, or both (which is exactly what I want, to be able to see my presentation both in the laptop screen and through the projector). In fact, when I press Fn+F8 in Linux absolutely nothing happens. The other Fn+function keys (for volume and brightness, for instance) work flawlessly. I tried 'xev' in the terminal, and whereas I get an output for the other Fn+function keys, I do not get anything when pressing Fn+F8.

I have been looking around in the forums and I have not been able to find anything about this so far. I actually have no idea if this is a KDE issue, a Kubuntu issue, something specific to my laptop...

Any ideas?
Thanks!

Can you check to see if the "xrandr" utility lists the video outputs?

I imagine that you mean while I am connected to the projector, right? If so, I will have to wait until I get to school on Monday, as I do not have one at home. I will post the results then, but just in case this is what I get now:

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mirosa@mirosa-laptop:~$ xrandr
Screen 0: minimum 320 x 240, current 1280 x 800, maximum 1280 x 800
default connected 1280x800+0+0 0mm x 0mm
   1280x800       50.0*
   1024x768       51.0
   840x525        52.0
   800x600        53.0
   800x512        54.0
   720x450        55.0
   700x525        56.0
   680x384        57.0     58.0
   640x512        59.0
   640x480        60.0     61.0
   576x432        62.0
   512x384        63.0
   400x300        64.0
   320x240        65.0

Thanks for your reply!

sometimes the command `krandrtray` can be of assistance to readjust the display or utilitize the additional display.

also, is your video card an ATI or nvidia?

It appears that your Laptop's other outputs are not being detected.

Can you please post the output of "lspci" and "cat /etc/X11/xorg.conf | grep Driver"?

Here are the outputs:

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mirosa@mirosa-laptop:~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 03)
00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)     
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)         
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)         
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 03)         
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)                         
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 03)       
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03) 
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 03)
01:00.0 VGA compatible controller: nVidia Corporation GeForce 8400M G (rev a1)                       
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
05:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)                     
mirosa@mirosa-laptop:~$ cat /etc/X11/xorg.conf | grep Driver                                                               
        Driver  "nvidia"

I still have not gone to school to be able to try 'xrandr' when I am connected to the projector. I will send that info later.

Thanks for your help!

I tried to connect the laptop to the projector and run all the commands again, and they all come up exactly the same. Bottom line: nothing happens.

You need to install the NVidia driver for your system to function fully. It can be retrieved from NVidia's website. Your graphics card number if required is 8400M G.

If you have already installed it, then you should be able to use the NVidia utilities installed to configure your outputs.