Changing Virtualbox's argument

[Alexander Senier]

Hi Naiji,

I accomplished this by adding a custom VESA mode to the VirtualBox
configuration. Add an <ExtraDataItem> to the <ExtraData> node in
the config, e.g.

    <ExtraData>
      <ExtraDataItem name="CustomVideoMode1" value="1920x1440x32"/>
      ...
    </ExtraData>

Additionally, you may need to add a kernel parameter to select the
respective VGA mode:

 vga=864

I guess installing the guest additions is another option, but the above
configuration works in setups where this is not available.

Cheers,
Alex

On 05.12.2017 15:51, Naiji Ma wrote:
> Hi all,
> 
> I am trying out Tinycore Linux in Virtualbox upon NOVA. Here is the
> virtualbox.run[1] I used. It's almost the original one. And here is the
> debug output[2] I got from serial port. From the debug output I see
> fb_drv detects the correct resolution of my monitor, but vbox resized it
> for some unknown reasons. The graphic output only occupies half of the
> window. I would like to force vbox to use the resoultion 1920x1440.
> Could someone give me a example about how to adjust vbox's configuration
> in virtualbox.run?
> 
> 
> [1] https://pastebin.com/GpQ56nX4
> [2] https://pastebin.com/uKebQW2n
> 
> 
> Best,
> Naiji
> 
> 
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