Compaq Portable internal monitor

[buddy1284]

I need to know the keyboard sequence that activates the internal monitor on a Compaq Portable. If anyone also has a bios call to do this I would be most appreciative. Thanks. Buddy

[JohnElliott]

CTRL+ALT+< and CTRL+ALT+> switch between the internal and external displays. Actually, what they do is switch video mode between 640x350 and 640x200; depending on the DIP switch settings on the video card, this may or may not disable the external monitor.

The BIOS call to do this on later Compaqs is INT 10h with AX=0BF01h (internal monitor) or 0BF00h (external monitor). But I don't think this is supported on the original Portable.