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My workspace extends, and is not a mirror or copy of original display, but I still get the vertical purple Icon launcher bar on both screens and see no way to remove it. Please advise!

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3 Answers 3

up vote 18 down vote accepted

You can configure whether the launcher will show on all monitors or in a single one:

Open the dash and type display

Now configure where you want the launcher to appear:

enter image description here

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Thanks, this did it. Even though 12.04 thinks my dual-monitor desktop pc setup is in fact a massive (3200 x 1080) laptop screen. –  jdv May 5 '12 at 5:45
    
That's because, for any practical purpose, it is. As you said yourself, your workspace extends (as opposed to clone/mirror or dual-screen), so for any application you do have a massive 3200x1800 screen. That's the size of your single workspace. –  MestreLion May 5 '12 at 6:32
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Sadly this doesn't work with nVidia's TwinView. There is only one screen there ("Laptop") and while selecting it does remove the launcher from one of my displays, it is not the one I want. –  Timmmm Jul 14 '12 at 15:51
    
@Timmmm: I am not sure how Nvidia's TwinView works. Is that some sort of "clone" displays, where both show the same content? Anyway, it is a pity Nvidia's software does not play nice with Ubuntu and Linux in general. I use ATI/AMD, and their proprietary control panel (Catalyst) and it shows the same displays and configuration as in Ubuntu's built in tool. Well, NVidia is widely known for being extremely uncooperative with the open software world. –  MestreLion Aug 14 '12 at 12:40
    
@MestreLion: It creates a virtual desktop spread over several screens. According to nVidia it has some advantages of Xinerama, e.g. OpenGL across two screens. I have to say, I'm slightly sympathetic to nVidia, given the fact that their drivers are pretty solid, and the Linux graphics stack is a complete mess . It's finally improving with KMS and Wayland, but realistically those are about 10 years late and still not ready. –  Timmmm Aug 15 '12 at 14:33

If you have an Nvidia video card you need to run the Nvidia software and change the primary display. Don't know about other chipsets

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But the sticky edges stays on even if you turn them off, which is a bit of a pain! –  SimplySimon Jun 6 '13 at 13:49

Do you mean the 'Launcher' (which contains the Ubuntu symbol, Home folder, Ubuntu Software Manager, Ubuntu One, etc etc) on the left of the screen? If yes, then follow these instructions:

  1. On the desktop, right-click and select Change Desktop Background.
  2. Switch to Behavior tab.
  3. Change Auto-hide the Launcher from OFF to ON.
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I appreciate your reply. This enables autohide of the HUD on both monitors, but I wish to remove the launcher from only my second monitor (and not to hide it, which still interferes with the mouse movement across screens). –  jdv May 5 '12 at 5:42
    
Totally forgot that when we Auto-hide, it hides on both monitors sigh* sorry :) –  Mohd Arafat Hossain May 5 '12 at 6:15

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