> Even I closed the laptop waiting it will recognize the external VGA. > But nothing happened. > You have pretty much described the root of the problem. The routing of video outputs is nowadays a function of the OS / assisted by software running in the OS. Be it the Windows desktop management, or the Linux X-server and some GUI configuration applet on top.
There is one thing I can suggest: Cold-start the machine with VGA already attached. The magic can happen during VGA option ROM initialization. If the VGA option ROM notices the VGA port loaded (= signal sink attached), chances are that it will enable the output. And, it can either mirror the internal LVDS video port, or it can send output to the VGA *only* - I would expect that to happen if the notebook gets started with the lid closed, not sure if you can achieve that. If you have a start button under the lid (on the keyboard or such), how much time do you have between pressing the button and getting a POST beep / VGA on? Perhaps you could make it by closing the lid swiftly enough... Frank _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
