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I have a widescreen monitor that rotates. I'm trying to use it in 'landscape' mode (vertical). This is easy in the GUI.

How do I rotate my display when I am not running an X Server or when I am viewing a Virtual Console / Terminal.

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you mean - when you're in a full-screen text console (what X server is not running or you switched to a console using Ctrl-Alt-F1)? –  Sergey Jan 9 '13 at 2:20
    
Exactly. When the X server is not running. I edited my question for clarity. Thanks. –  Kurtis Jan 9 '13 at 2:50
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As far as I can tell this only works in X. Framebuffer (in the console) for instance has no support for rotating the screen. –  qbi Jan 12 '13 at 22:48
    
I think you're right. I imagine this functionality would be implemented within the Kernel, itself, if it's at all possible. Further, I imagine that the video would have to be driven by something like VESA or another graphics driver since the BIOS, EFI, etc. most likely would not include this functionality. –  Kurtis Jan 14 '13 at 3:18
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up vote 0 down vote accepted

You can only rotate your display with some kind of X server. A virtual console as well as framebuffer has no support for rotating.

But maybe you can run some small X window manager like awesome and a terminal in full-screen mode. In this case you would get the rotation feature and it still feels like a console.

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To rotate your screen you can try xrandr command:

xrandr -o left

To turn back:

xrandr -o normal

You need to have DISPLAY variable setted:

export DISPLAY=:0

To be honest, it doesn't work with full-screen text consoles of my computer (it does with 7th GUI screen) but I had a lot of problems with fglrx drivers lately and I don't want to experiment since I barely managed to set everything up. In case of problems you can check here: http://ubuntuforums.org/showthread.php?t=1815538 for help with that command.

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I switched to my Virtual Console (Ctrl+Alt+F1). I logged in. I ran 'export DISPLAY=:0'. I ran 'xrandr -o left'. I received the error 'Failed to change the screen configuration!'. While I'm not an expert, I believe xrandr is used to configure the X Server so I'm not sure if it would be suitable for this purpose. –  Kurtis Jan 9 '13 at 18:39
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