virtualbox.org

Running VBOX 4.1.8r75467 on Windows 7 Ult SP1 16 bit and guest machines Win 7 SP1 64 bit.
Using Host+F changes virtual window to full screen but guest os does not resize. This is a change from previous version.
Obviously there must be a setting I am not seeing such as "auto-resize",
Where is it?

When in windowed mode you will find them in the view tab (top left) and when in full screen if you don't have the mini menu use the host+home toggle to open the menu.

Many thanks. I had not thought of looking there.
Has it always been there or did 4.1.8 guest additions introduce it?

I am still having a problem. One of my virtual machines responds correctly with the auto-resize selected but another identical machine does not.

Where should I look to check the differences?

First thing to do is re-install the guest additions. Watch for any error message that is noted.
If this does not fix the error post the guests log file (as an attachment).

I have reinstalled the guest additions.
The result is I get a full screen window but the OS does not re-size in it. The log of the installation of the additions is attached.
What next?

What happens if you change the processor count to (1)?

Both the working and the non-working machines had 2 processors defined.
I changed the non-working machine to have 1 processor but this did not change the result, it still does not resize the OS portion of the fullscreen window.
Thanks for the input, what next?

I don't know. The log shows that everything is happy and should be in full screen.
You might want to report it to bugtracker

Thanks again for all your help. I will checkout the bugtracker link you gave.

I am still having trouble with this problem.
I have raised a new defect over on Bugtracker #10201.
I am delving deeper into the reasons why 3 of four virtual machines fail to resize the guest OS.
I have tracked down a difference which I do not know if it may be the cause.

The working machine vbxw72 has its definitions in
C:\Users\Alan Cameron\Virtualbox VMs\vbxw72\vbxw72.vbox

whereas the vbxw71 failing machine definitions appear to be in
C:\Users\Alan Cameron\.Virtualbox\Machines\vbxw71\vbxw71.xml

Could this be the cause of the different operation?
If so how should I correct the failing machines?

I have full Windows 7 Backups including System Images of all the machines on an NAS device.

I am still in trouble with the OS resizing.
I have tried cloning the failing machines and exporting/re-importing but without success.
Has anyone got any other ideas to solve this?

Anyone??

The two different locations you are showing are due to the version of VirtualBox that was used to create these guests. Ver => 4.* will be in VirtualBox VMs where as versions before would have been .Virtualbox\Machines. I don't have this mix any more as I saw it causing *me* issues and converted all of mine shortly after 4.* came out to the new format.

I know others still have this mix though and they don't seem to have full screen issues, and as I said the log files really don't show a reason.

Make sure that auto-resize is enabled (host+g) and that you are not in scaled mode (host+c). Other than that I don't what else to tell you.
The hot keys are toggles. You might need to use them 2 times especially if it was in auto-resize to begin to make sure that it is enabled.

Thanks for the opinions.
I have taken your advice and have reduced the number of old machines in the old format to 1.
I am a little disappointed that when I installed version 4 I did not convert then but I did not see any information about how to do that. To be fair it is not really necessary to provide all the information to users of what is a niche product. I only use it 1. because it is free and 2. to test out various pieces of other software before committing it to production machines. But I do expect it all to work.
Complicated beyond maintainability.

I had the same issue on a couple of my Windows 7 guests, come to find out that somewhere along the line my guests picked up some ACER monitor that would not support the higher resolutions. So I went into the device manager for each of the guests and uninstalled the monitor (I had to click the box that asks about deleting the drivers from my system). After a reboot, the guests picked up the Generic non-PnP Monitor and everything is fine now... All resolutions work.