Xfce Forum

gustavwiz

Member

Registered: 2013-06-22

Posts: 3

[Solved] Multiple Screens

Hello!

I have two screens connected to my computer. I can reflect the screen contents so both screens shows the same thing, but i can't get extended desktop:

I have no alternative to choose "extended desktop" or something.

My graphic card is a Radeon HD 7770, and the driver is from X.org.
I Use Ubuntu 13.04 with Xfce 4.10.

ToZ

Administrator

From: Canada

Registered: 2011-06-02

Posts: 11,607

Re: [Solved] Multiple Screens

I believe you need to either:

1. Install the proprietary catalyst drivers and use the tools that come with that driver, or

2. For the opensource drivers you need to use xrandr (see: https://wiki.ubuntu.com/X/Config/Resolution)
For xrandr:

xrandr -q

...will show the current xrandr settings and identify your monitors by name (e.g. VGA1, VGA2, etc).You can then use a command like:

xrandr --output VGA1 --left-of VGA2

...to extend the desktop.

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gustavwiz

Member

Registered: 2013-06-22

Posts: 3

Re: [Solved] Multiple Screens

Thanks! Option 2 worked.

paolo321

Member

Registered: 2011-06-26

Posts: 121

Re: [Solved] Multiple Screens

arandr is a nice GUI to xrandr if you prefer graphical tools.

BTW, I always add a keyboard shortcut to a script that resets display setup (to be used in the case something weird happens):

xrandr --auto
xfce4-panel -r
xfdesktop --reload