On Tue, 17 Nov 2009 15:39:09 -0500, Lewis G Rosenthal wrote:
>Ah... I think we may have been talking about:
> gaoption lcdusebios [auto | on | off]
> This option controls whether the LCD BIOS is used on laptops. This
> option defaults to auto, which means
> that the BIOS will be used when the laptop is booted on the LCD
> panel, and will not be used when it is
> booted on an external CRT monitor. If you frequently switch between
> LCD and CRT screens, you may
> wish to set this option to on, so that the graphics modes will be
> limited to those that can be properly
> displayed on the LCD panel. Note that many laptop chipset drivers
> have been updated to have more
> intelligent switching code, and will ignore this option.
I'm not real clear on what/how this works.
I have tried all kinds of combinations when I need to do a
presentation. Even with:
LCD + VGA
set in the BIOS, the best I can get is to have the projector and no LCD
- PROVIDED I boot with the projector connected at boot time. If I boot
without the projector, all the output goes to the LCD and there is no
way to switch.
FWIW, I should mention that I am using the SNAP graphics driver. And a
search of the boot drive shows a file:
So, a question for Julian: Are you using SNAP or the Panorama driver.
I've never tried Panorama.
Should I be able to run the gaoption.exe to switch displays?
I've never tried that. And, I don't have a projector or even a spare
CRT to use for testing.