Ubuntu host Windows 7 guest screen res problem

[james.wilde]

My Ubuntu 9.04 host is running at 1280x800 resolution.

I'm running a Windows 7 guest in VB 3.0.8 r53138 with the guest additions installed. I have configured the display for 128Mb (the max). The maximum resolution I can get in the guest is 800x600. At this resolution the guest takes up a small portion of the full size window. The guest shows me to be using a Generic non PnP monitor on Virtualbox Graphics Adapter.

I have an XP guest running on the same machine at 1280x650. This guest takes up the whole of a full size window on the host. If I remember correctly, I reset the resolution on this guest in the guest configuration, which resulted in the guest taking up the whole window. Furthermore I seem to remember that I could set the resolution in this guest resulting in an image which was larger than the window, and created a scroll bar.

I've checked the log, although I'm not sure I would understand if I found anything relating to the resolution in there. I believe I have read all the posts in the forum relating to screen resolution of windows guests without finding a solution. I've also checked the user manual looking for sections on screen resolution and display configuration. If anyone can give me a pointer I'd be very grateful. It might just be that I have missed something in the configuration of Windows 7, which is so totally unlike the XP I have used for so long.

TIA

James

[Perryg]

James,
If you can not get full screen then you do not have the guest additions installed or they did not install properly.
In the guest
Click the devices tab and then click unmount the CD/DVD.
Then click install guest additions.
Watch for the additions to install. You should see that they are progressing.
When complete reboot the guest, do not save, do a total reboot.
Once the guest is back up then click on the machine tab at the top and make sure that auto-resize is selected (it turns slightly blue)
Then you should be able to use the mouse click drag to increase the screen size or the host +F to toggle full screen.

[james.wilde]

Thanks Perryg. Your answer crossed with my testing something else from a similar thread.

I had actually tried some or all of the host-L, host-F, host-G and host-A options without result.

Fixed my problem with:

VBoxManage setextradata "Z7" "CustomVideoMode1" "1280x650x32"

and restarting the vm. This value of 1280x650x32 I got from my XP vm. Now to test and see if I have any problems.

//James