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Thread: How to set up dual screens Extended desktop

  1. #11
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    Re: How to set up dual screens Extended desktop

    Quote Originally Posted by Inxsible View Post
    Open up a terminal and type in
    Code:
    lspci | grep VGA
    Post the result back here.
    This is what I get:

    Code:
    00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
    I guess this means that I should use Xinerama. I'll try it, anyway, and report back here.

  2. #12
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    Re: How to set up dual screens Extended desktop

    I've made a copy of xorg.conf and made the changes (but only on the copy so far).

    Now, I'm unsure about using Xinerama, because...

    1. Quote Originally Posted by [URL="http://en.wikipedia.org/wiki/Xinerama
      Wikipedia[/url]"]As of 2008, Xinerama is planned to be deprecated in the future by X.org in favor of XRandR.
    2. Quote Originally Posted by [URL="http://sourceforge.net/projects/xinerama
      Sourceforge[/url]"]As of 2007-09-20 10:44, this project is no longer under active development.

    Any comments?

    (Anyway, my installation manager isn't working, so I can't progress until that's solved. )

  3. #13
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    Lightbulb Re: How to set up dual screens Extended desktop

    Yay! I got it working!

    For anyone else who's struggling, this is how I did it...


    • I made a backup of xorg.conf as explained in the How To post.
    • I discovered a hidden menu item: Applications -> Other -> Screens and Graphics. (To reveal this menu, use System -> Preferences -> Main Menu.) I experimented with this Screens and Graphics program (making use of the backup copy of xorg.conf) until I'd manged to at least get both screens responding, albeit with incorrect resolutions.
    • I made another backup of xorg.conf at this point, so I could revert to it or refer to it.
    • Referring to the tips in the aforementioned How To post, and to the Xinerama "How To", I experimented hugely until I got it right. Watch out: Even the smallest typo causes problems! Do baby steps: Make a small change, test, and repeat.


    There was lots that I wouldn't have known about had I not found the Screens and Graphics program.

    Once you have it working, back up your new xorg.conf. You should then keep two copies just in case: The original xorg.conf (before you started to change things), and the new working xorg.conf. Put them on your backups.

  4. #14
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    Re: How to set up dual screens Extended desktop

    Well, Xinerama is deprecated. And someone pointed me to a much better method (far quicker and easier to set up):

    RandR HowTo

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