Problems seeing full computer with VirtualBox

Discussions about using Linux guests in VirtualBox.

Problems seeing full computer with VirtualBox

Postby Circuits » 2. Feb 2019, 20:08

I am having a problem and I can't seem to find anyone else with a Google search who has had this problem as well. I think it will be easier if I just post a screenshot of the problem:

https://ibb.co/gvjgmrH

As you can see I can only view part of the computer. For instance if I open up FireFox I have to use a scroll bar to see the right hand side of the window. How do I fix this? Normally I would assume this is a screen resolution problem. However, with the machine running, if I select View and scroll down to Virtual Screen 1 all the options for changing resolution are grayed out.

Then I thought maybe I am supposed to change those settings on the Vm itself but I can't do that because I can't access the tool. For instance, if I pull up System Settings I can only see and access half of the options the other ones are off the screen, so that doesn't seem right.

Sorry for asking such a noob question but...
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Re: Problems seeing full computer with VirtualBox

Postby mpack » 3. Feb 2019, 10:41

The guest display size is controlled inside the guest, VirtualBox then adapts. So change the display size settings inside the guest OS - use the scroll bar to access the dialog.
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Re: Problems seeing full computer with VirtualBox

Postby alquimista1501 » 7. Feb 2019, 20:25

I have the same problems whit advanced screem, i cannot install ubuntu 16.04 just because i cannot see the action boxes on the screem, i cannot finish the instalation. anyone whith the same problems????
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Re: Problems seeing full computer with VirtualBox

Postby Circuits » 4. Apr 2019, 19:51

mpack wrote:The guest display size is controlled inside the guest, VirtualBox then adapts. So change the display size settings inside the guest OS - use the scroll bar to access the dialog.

What display setting were you referring too? The system I am working with is Ubuntu 12.04 and the only displaying setting I have is resolution. Altering the resolution doesn't solve my problem.
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Re: Problems seeing full computer with VirtualBox

Postby socratis » 4. Apr 2019, 20:14

We need to see a complete VBox.log, from a complete VM run, where the problem occurs:
  • Start the VM from cold-boot (not from a paused or saved state) / Observe problem / Shutdown the VM (force close it if you have to).
  • With the VM completely shut down (not paused or saved), right-click on the VM in the VirtualBox Manager and select "Show Log".
  • Save only the first "VBox.log", ZIP it and attach it to your response. See the "Upload attachment" tab below the reply form.
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Re: Problems seeing full computer with VirtualBox

Postby mpack » 5. Apr 2019, 10:21

Circuits wrote:What display setting were you referring to?

Whatever display setting the guest provides. It's impossible to be specific: it changes across versions even with the same OS.

VirtualBox provides a display adapter, the display adapter does what it's told to do. The trick is to get your guest OS to tell it the right thing.

Note another point: if there was a bug in the display adapter it would affect all guest OS's you install.
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