Re: How to turn off internal monitor when using external one
Gerardo Ballabio wrote:
Hi all,
I've been given a Dell Latitude C640 laptop as my work PC (it was
formerly used by my boss, who ran Windows). When in the office, I plug
it into its docking station under my desk and use external LCD monitor,
keyboard and mouse. I run Sarge, kernel 2.6.8-1-686.
Docking station... never used one, but this is one of those 'things'
where the whole laptop would click into ?
My problem is, when it's plugged in, the internal monitor is blank
(which is fine for me) but on, regardless whether the lid is open or
closed, and that heats the laptop quite a lot, especially since I
usually keep it closed. A colleague told me she used to have the same
problem, and her motherboard burned after some months; after that she
switched back to Windows.
Do you plug into the dock hot or cold? Try shutting down the laptop with
VGA cable pluged in, power up, is the screen on or off ?
However if I switch to the text console (even if X is running in the
background), the internal monitor does turn off. Thus I suspect it
could be a problem of configuring X correctly. I guess that I should
somehow tell X that I have two distinct monitors, and want to use only
one of them. But I don't know how to do that.
Hrm. I have difficulty configuring X from the XF86Config-4 file with
anything regarding the VGA. What about BIOS LCD off on lid close ?
-sime
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