Published at LXer:

Anyways, whenever virtualizing a non-Windows operating system which utilizes the X Windowing system over VirtualBox, it may be beneficial to have some flexibility on supported resolutions for the GUI. For example, I was using OpenSolaris 2008.11 and VirtualBox seems to create a “virtual” monitor where the operating system (specifically X) is unable to read the monitor’s EDID information to obtain supported resolution information (among other things). As a result of this, by default X assigns 800×600@60 and 640×480@60 as supported display formats. When you are working on a wider screen that supports something larger, this makes for an uncomfortable computing experience; especially with limited graphical space on the virtual client.

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