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Thread: Error setting screen resolution in VirtualBox

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  1. #1
    Join Date
    Mar 2009
    Beans
    100

    Error setting screen resolution in VirtualBox

    Hi,

    Followed the wiki. Get this
    Code:
    david@david-VirtualBox:~$ xrandr -q
    Screen 0: minimum 64 x 64, current 800 x 600, maximum 32000 x 32000
    VBOX0 connected 800x600+0+0 0mm x 0mm
       800x600        60.0*+
       640x480        60.0  
    david@david-VirtualBox:~$ xrandr --newmode "1368x768_60.00"   85.25  1368 1440 1576 1784  768 771 781 798 -hsync +vsync
    david@david-VirtualBox:~$ xrandr --addmode VBOX0 1368x768_60.00X Error of failed request:  BadMatch (invalid parameter attributes)
      Major opcode of failed request:  140 (RANDR)
      Minor opcode of failed request:  18 (RRAddOutputMode)
      Serial number of failed request:  20
      Current serial number in output stream:  21
    david@david-VirtualBox:~$ xrandr -q
    Screen 0: minimum 64 x 64, current 800 x 600, maximum 32000 x 32000
    VBOX0 connected 800x600+0+0 0mm x 0mm
       800x600        60.0*+
       640x480        60.0  
      1368x768_60.00 (0x155)   85.2MHz
            h: width  1368 start 1440 end 1576 total 1784 skew    0 clock   47.8KHz
            v: height  768 start  771 end  781 total  798           clock   59.9Hz
    I also found this thread http://ubuntuforums.org/showthread.php?t=1880909 and have installed the virtualbox-guest* packages.

    Here is my graphics support
    Code:
    david@david-VirtualBox:~$ sudo lshw -C display
    [sudo] password for david: 
      *-display UNCLAIMED     
           description: VGA compatible controller
           product: VirtualBox Graphics Adapter
           vendor: InnoTek Systemberatung GmbH
           physical id: 2
           bus info: pci@0000:00:02.0
           version: 00
           width: 32 bits
           clock: 33MHz
           capabilities: vga_controller bus_master
           configuration: latency=0
           resources: memory:e0000000-e7ffffff
    There is no xorg.conf in /etc/X11 so not sure about the options to add a modeline to that file, as it does not exist.

    Ideas?

    Thx.

    David
    Last edited by olddave1; February 26th, 2013 at 11:39 AM. Reason: code format

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