[SATLUG] Monitor Connections 101 Update

David Kowis dkowis at shlrm.org
Tue Sep 27 15:34:21 CDT 2011


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On 09/27/2011 03:12 PM, Don Wright wrote:
> Arthur Hall wrote:
>> Tried dragging a window all four ways, but never saw any impact
>> on the HDTV screen.  One odd thing, though, was that the cursor
>> shows up on the left side of the TV screen just as it moves off
>> of the right side of the laptop screen.  I can move it all around
>> the TV screen and it won't reappear on the laptop until I move it
>> off of the left side of the HDTV.
> 
> So the cursor shows up on the TV, but not a window or icon you drag
> with it? Sorry, but you'll need a better X Windows expert than I.
> Generally with a laptop I try the built-in video switching commands
> (FN key plus some function key with a screen icon on it) during
> startup, before the window manager grabs the keyboard. This should
> either send all video out the external port or mirror the laptop
> and external screens.

Probably then it's a second X screen. That's my suspicion anyway, when
one cannot move a window, but the cursor will move. You should have
two displays. you might be able to use a terminal and do something like:

export DISPLAY=:1
firefox

(or any other application)

And it should show up on the other X Display.

Usually, though, second X Screens have to be explicitly configured.
Now-a-days things are done with xrandr instead.

David
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