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Hi I have an Asus eeepc 901 and now I installed Lubuntu 12.04 on it. Everything works fine except I can't use external Monitors.

If I press Fn+F5 which used to be the right keys for eeebuntu (the previous distro) nothing happens, the monitor doesn't get a signal.

What can I do?

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Just to let you know, Ubuntu 12.04 multi monitor support is absolutely rubbish. At best I was able to get 4 monitors working using xinerama, but with xinerama enabled, I lose the ability to use Unity3D and with Unity2D, it has some bug with the default theme... So in all, it's a bit of a disaster. –  oshirowanen May 25 '12 at 12:38
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3 Answers 3

I would suggest you look at the System Tools, Preferences, and Sound and Video selections for a control panel useful for turning on the second monitor. The function key may have changed, or been eliminated, in Lubuntu from EEbuntu.

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It's difficult to answer your question without knowing more information.

Would you please type command xrandr in a terminal. Post the output in your question by using the edit function.

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Install the gui xrandr interface, arandr, via synaptic or (sudo apt-get install arandr).

Here's an arandr tutorial which allows you to map the external monitor to hotkeys in Lubuntu: http://lubuntutips.blogspot.com/2012/05/dual-monitors-in-lubuntu.html

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