My Fn F4 key is not working is any other option lcd connectivity

Connecting an External Monitor or Data Projector
You can switch to an external monitor or data projector by two methods. 1. Connect the external monitor to the laptop's video port, power up the external monitor first and the laptop. The video information will automatically switch to the external monitor. 2. If you power up the laptop first then you can switch the video output to the external monitor by pressing the Fn key and one of the Function keys, depending upon your make and model laptop. You can also toggle between the external monitor or both LCD screen plus the external monitor or back to LCD screen only by pressing the Fn key plus one of the function key. Here is a list of key combinations for some of the laptops :- IBM ThinkPad = Fn + F7 HP and Compaq = Fn + F4 Toshiba = Fn + F5 Dell = Fn + F8

Connecting an External Monitor or Data Projector
You can switch to an external monitor or data projector by two methods. 1. Connect the external monitor to the laptop's video port, power up the external monitor first and the laptop. The video information will automatically switch to the external monitor. 2. If you power up the laptop first then you can switch the video output to the external monitor by pressing the Fn key and one of the Function keys, depending upon your make and model laptop. You can also toggle between the external monitor or both LCD screen plus the external monitor or back to LCD screen only by pressing the Fn key plus one of the function key. Here is a list of key combinations for some of the laptops :- IBM ThinkPad = Fn + F7 HP and Compaq = Fn + F4 Toshiba = Fn + F5 Dell = Fn + F8

if your "F" function keys are a second function of the keys they are on there will be a key, usally located in the area of the lower left corner of your keyboard. If the "F" functions are in color, so will the key that activates them. The idea is that you hold down the Fn key while striking the selected "F" key

Firstly connect your projector to the pc and then press function f4 on your pc.remember to switch you projector to the pc mode

If you connect the projector to the laptop and power up the projector first and then the laptop, the video data will automatically divert to the video port/projector .
On most Presario press the Fn key and the F4 key The function key will have a screen symbol printed on the key.

Once connected through S-video, you have to ensure that the proper source is chosen on your television. The command is usually Fn+F4

If you connect the data projector to your laptop and power it up first then your laptop, the video will switch to the data projector automatically.
If you had powered up the laptop first then you can divert the video information to the external video port/data projector by holding the Fn key and then press F4 key.
You can toggle between the LCD screen, the data projector or both LCD and data project together using the Fn & F4 keys.

look at the f keys...f1 - f12..
one of them has a square box(icon)printed on it..
link up pc to tv with s-video lead...
press (together) fn+f4 (or the f key with box on it)usaually f4)

try to set your resolution on your laptop, it have an option for proyektor setting, i've done it but now it displyed not horizontally but vertically, do you have any solution??

You will have to enable dual monitors in your laptop's video display settings.

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