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Thread: 800 x 600 max resolution on VirtualBox ?

  1. #1

    800 x 600 max resolution on VirtualBox ?

    Hi.

    I'm using Xubuntu on a VirtualBox 1.6.0 and the screen only shows at 800x600. I would like to use it in 1024x768.

    I've used other distros (Slax, Puppy, DSL) and all OK. All of them allow 1024x768.

    Best,

    Osvaldo

  2. #2
    Join Date
    Nov 2005
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    1,674
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    Ubuntu Karmic Koala (testing)

    Re: 800 x 600 max resolution on VirtualBox ?

    so it does not give you the option for 800*600?

    have you tried going into the xorg.conf file?

    Code:
    gksudo gedit /etc/X11/xorg.conf

  3. #3
    Join Date
    May 2007
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    7,032
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    Ubuntu 9.10 Karmic Koala

    Re: 800 x 600 max resolution on VirtualBox ?

    Moved to Virtualization.

    Have you installed the Guest Extras package for VirtualBox? That is necessary to get full resolution in most guest OSes.
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  4. #4

    Re: 800 x 600 max resolution on VirtualBox ?

    Hi.

    How do I install Guest Extras package for VirtualBox? I Google it and I didn't found an howto.

    I'm using an Intel Mac and VB1.6.0

    /etc/X11/xorg.conf doesn't give me any information about the monitor resolution.

    Thank you very much for your help.

    Best

    Osvaldo

  5. #5
    Join Date
    May 2008
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    North Shore, NZ
    Beans
    80
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    Ubuntu 10.10 Maverick Meerkat

    Re: 800 x 600 max resolution on VirtualBox ?

    You must open your Virtualbox image, I think its xxxxxxxx.vmx, where the x's are your image name.

    Open it in a text editor, and add the following lines:

    Code:
    svga.maxWidth = "1400"
    svga.maxHeight = "900"
    Or whatever resolution you want. This should unlock the resolution you need in the display properties of your guest OS.
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  6. #6

    Re: 800 x 600 max resolution on VirtualBox ?

    Skeet: Thanks for the help, but as I didn't found the files I looked in Google and the procedure you described is for Vmware. I'm using VirtualBox on the Mac.


    Does anyone knows how to force Vesa card and 1024x768 ? I guess the reason that works in other OS'es is that they use this.


    Best

    Osvaldo

  7. #7

    Re: 800 x 600 max resolution on VirtualBox ?

    SOLVED:

    Here's how I did it:

    1 - I've boted SLAX (A Linux Live CD distro) using xVesa for the graphics

    2 - I've copied the file in Slax:

    /etc/X11/xorg.conf

    to an USB Pen

    3 - I've copied the Ubuntu xorg.conf to the same USB

    4 - I've edited the ubuntu file replacing some elements by the elements in the slax file.

    5 - I've loged in Xubuntu in the terminal mode and then:

    sudo cp ./xorg.conf /etc/X11/xorg.conf

    exit

    6 - Just logged in normally.
    -----------------------

  8. #8
    Join Date
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    Ubuntu 10.10 Maverick Meerkat

    Re: 800 x 600 max resolution on VirtualBox ?

    Ah I didn't check what os you were using. I wasn't too sure if it worked in VirtualBox. Good job figuring it out though.

    Have fun!
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  9. #9

    Re: 800 x 600 max resolution on VirtualBox ?

    In case anyone needs it, the sections I've replaced:

    -------------------------

    Section "Device"
    Identifier "VESA Framebuffer"
    Driver "vesa"
    #VideoRam 4096
    # Insert Clocks lines here if appropriate
    EndSection

    Section "Monitor"
    Identifier "My Monitor"
    HorizSync 31.5 - 150.0
    VertRefresh 75-85
    EndSection

    Section "Screen"
    Identifier "Screen 1"
    Device "VESA Framebuffer"
    Monitor "My Monitor"

    # If your card can handle it, a higher default color depth (like 24 or 32)
    # is highly recommended.

    # DefaultDepth 8
    # DefaultDepth 16
    DefaultDepth 24
    # DefaultDepth 32

    # "1024x768" is also a conservative usable default resolution. If you
    # have a better monitor, feel free to try resolutions such as
    # "1152x864", "1280x1024", "1600x1200", and "1800x1400" (or whatever your
    # card/monitor can produce)

    Subsection "Display"
    Depth 8
    Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
    Depth 16
    Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
    Depth 24
    Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
    Depth 32
    Modes "1024x768" "800x600" "640x480"
    EndSubsection

    EndSection

    Section "ServerLayout"

    # The Identifier line must be present
    Identifier "Simple Layout"

    # Each Screen line specifies a Screen section name, and optionally
    # the relative position of other screens. The four names after
    # primary screen name are the screens to the top, bottom, left and right
    # of the primary screen. In this example, screen 2 is located to the
    # right of screen 1.

    Screen "Screen 1"

    EndSection




    -------------------------------------

  10. #10
    Join Date
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    Southwest Idaho
    Beans
    310

    Re: 800 x 600 max resolution on VirtualBox ?

    I have this same problem. Host=Gutsy, guest=Kubuntu 8.04 w KDE4.0.4. I copied my existing xorg.conf to the guest. Lost the graphical interface. Copied the original back. Tried the sample code at Innotek. That didn't work either.

    CPU Intel DualCore
    RAM 2G
    Video GeForce 8400
    Monitor Samsung 226BW

    I did see enough of Kubuntu to determine that I will install it as a dual boot. However, my wife needs to run XP and doesn't like dual booting so I'm hoping that I can get a full screen XP in VirtualBox.

    bobland

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