dual screen

[Rakotomandimby Mihamina-3]

Hi all
Using xfce 4.6 (xUbuntu 9.04) on a laptop with ATI card.
the laptop has a VGA slot.

When I plug a screen on the VGA slot, then press Fn+F5 (it's
the laptop's key combination to activate the plugged screen)
I have the external screen turned on (the main screen stays on).

The default behaviour is to clone the main screen.
It's usefull for me when I make a demo, perfect.

Then, when I want to work with the 2 screens, I cannot:
I found no way to use "extended desktop on them"
(I want not clone but use a big desktop with the two screen)

When I enter Settings -> Display (while the external screen plugged)
it lists only one screen.

How at least to make XFCE detect the second screen?
I "think" once XFCE detects that second screen in its listing he will
be able to extend the desktop on them...

--
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[Olivier Fourdan-3]

Hi

On Wed, Nov 4, 2009 at 10:32 AM, Rakotomandimby Mihamina
<mihamina@...> wrote:

> Hi all
> Using xfce 4.6 (xUbuntu 9.04) on a laptop with ATI card.
> the laptop has a VGA slot.
>
> When I plug a screen on the VGA slot, then press Fn+F5 (it's
> the laptop's key combination to activate the plugged screen)
> I have the external screen turned on (the main screen stays on).
>
> The default behaviour is to clone the main screen.
> It's usefull for me when I make a demo, perfect.
>
> Then, when I want to work with the 2 screens, I cannot:
> I found no way to use "extended desktop on them"
> (I want not clone but use a big desktop with the two screen)
>
> When I enter Settings -> Display (while the external screen plugged)
> it lists only one screen.
>
> How at least to make XFCE detect the second screen?
> I "think" once XFCE detects that second screen in its listing he will
> be able to extend the desktop on them...

Yes, the default shortcut for the XF86Display key is to call "xrandr
--auto" so that the output gets at least detected.

For anything fancier, either use a more complex xrandr command that
matches your need, or write a setting utility that is able to manage
multiple screens in a fancy and useful way (ie, patch welcome ^_~)

Cheers,
Olivier.
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[Mark Trompell-2]

On Wed, Nov 4, 2009 at 12:41 PM, Olivier Fourdan wrote:

> Hi
>
> On Wed, Nov 4, 2009 at 10:32 AM, Rakotomandimby Mihamina wrote:
>> Hi all
>> Using xfce 4.6 (xUbuntu 9.04) on a laptop with ATI card.
>> the laptop has a VGA slot.
>>
>> When I plug a screen on the VGA slot, then press Fn+F5 (it's
>> the laptop's key combination to activate the plugged screen)
>> I have the external screen turned on (the main screen stays on).

...

>> When I enter Settings -> Display (while the external screen plugged)
>> it lists only one screen.
>>
>> How at least to make XFCE detect the second screen?
>> I "think" once XFCE detects that second screen in its listing he will
>> be able to extend the desktop on them...
>
> Yes, the default shortcut for the XF86Display key is to call "xrandr
> --auto" so that the output gets at least detected.
>
> For anything fancier, either use a more complex xrandr command that
> matches your need, or write a setting utility that is able to manage
> multiple screens in a fancy and useful way (ie, patch welcome ^_~)

I think xfce4-display-settings should at least list the second Screen though,
even if you can't do fancy stuff with it.

> Cheers,
> Olivier.

--
Mark Trompell

Foresight Linux Xfce Edition
Cause your desktop should be freaking cool
(and Xfce)
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[Olivier Fourdan-3]

On Mon, Nov 9, 2009 at 8:39 AM, Mark Trompell <mark@...> wrote:
> I think xfce4-display-settings should at least list the second Screen though,
> even if you can't do fancy stuff with it.

Agree.

I am sure patches for xfce4-display-settings  are welcome :)

Cheers,
Olivier
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