There are many threads concerning linux screen resolutions and small 'full screen' issues.
I have found the following:-
When checking Linux video settings I have found it was set to VESA not the nvidia driver of the MacPro.
Trying to set it to NV or nvidia failed.
In the end I set the video memory to the max. 256MB and 'automatic' and reboooted and it came up fullscreen, finally.
I suppose this is a limitation of the guest operating system, having to use VESA instead of the NV or Nvidia drivers.
This should be spelt out as a lot of people are having linux guest screen resolution issues.
I have found the following:-
When checking Linux video settings I have found it was set to VESA not the nvidia driver of the MacPro.
Trying to set it to NV or nvidia failed.
In the end I set the video memory to the max. 256MB and 'automatic' and reboooted and it came up fullscreen, finally.
I suppose this is a limitation of the guest operating system, having to use VESA instead of the NV or Nvidia drivers.
This should be spelt out as a lot of people are having linux guest screen resolution issues.