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Thread: rotating screen

  1. #1
    Join Date
    May 2010
    Beans
    1

    rotating screen

    Hi,

    I'm using Ubuntu 10.04 with an ATI HD5670 card and an Iiyama monitor (24" pivot).

    My problem is: when I try to rotate the screen (switching to portrait-mode) I get a black screen and the monitor displays: no signal. Then I have to power down the machine. On reboot everything works as before.

    What can I do here?

    I tried it via Catalyst Control Center: as described.
    I modified /etc/X11/xorg.conf: no effect.

    This worked for another machine (SuSE 10.2 with NVidia 8500GT).

    Any tips?
    Thanks.
    AugustQ

  2. #2
    Join Date
    Nov 2005
    Location
    Nürnberg, Deutschland
    Beans
    21
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Re: rotating screen

    Edit the xorg.conf file:

    gksudo sudo gedit /etc/X11/xorg.conf


    Add the RandRRotation option somewhere in the "Screen" section to allow rotation:

    Code:
    Section "Screen"
    ...
    Option "RandRRotation" "True"
    ....

    Complete example:

    Code:
    Section "Screen"
        Identifier   "Screen0"
        Device       "Device0"
        Monitor      "Monitor0"
        DefaultDepth 24
        Option       "TwinView" "0"
        Option       "metamodes" "CRT: nvidia-auto-select +0+0"
        Option       "RandRRotation" "True"
        SubSection "Display"
            Depth 24
        EndSubSection
    EndSection

    Finally, restart your computer. You'll then be able to rotate your screen through the NVIDIA utility, or via the command line:

    Code:
    xrandr -o left
    xrandr -o normal
    ...
    Use man xrandr for more details and options.


    Rotation / pivot with NVIDIA gfx work very well on recent Ubuntu releases. More infos:

    Ubuntu & NVIDIA: external monitor, rotation, ...

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