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If you google this issue, there are a lot of threads with the same symptom, all with different solutions. TLDR: If you have 2 monitors, move the vm window to the second monitor, alter resolution in the vm, then move it back. You can also do this while the Windows VM is running, if that doesn't work, restart the VM after making the change.Įdit - you may also have to twiddle with the Adjust Windows Size and Auto-resize Guest Display items on the VirtualBox View app menu to get resize working correctly. Confirm that the version number matches the VirtualBox App version running on your host (hover over that icon to see the Guest Additions version number and do a "Help > About" in the Virtual Box app to see that version number). If you have that icon in your Windows VM status bar it means the Guest Additions are installed. Check the status bar inside your Windows VM for a small VirtualBox icon (usually has a yellow star). This does require that the matching version of VirtualBox Guest Additions is installed and running inside your VM. Now start the VM and you'll be able to resize the host container window to any dimensions you want, and the VM will automatically adjust! Change Maximum Guest Screen Size pull down to None.Select Display from the list of preferences.Goto File > Preferences on the VirtualBox app menu.Select your Windows guest VM from the list of VMs.Start the VirtualBox application on your host.Last time I had this problem the solution was to run "VBoxManage controlvm nameofyourVM setvideomodehint width height colordepth" command from the host but now I want to know if there is any easier way to solve this?įurther modification to the answers from and for more clarity and improved utility: I want to run the guest in 1920x1080 (16:9) so I can easily record screencasts in "full-hd". After deactivating full screen two more options had been added to the resolutions dropdown list, 1920x1200 (16:10) and 1600x1200 (4:3). I then activated full screen mode (host+f) and got the guest running in native 1920x1200 (16:10) for my screen. After installing guest additions the options 1280x960 (4:3) and 1440x1050 (4:3) was added to the list. After installation I had the option of selecting 1024x768 (4:3) and 800圆00 (4:3) as resolution in display settings. I've a 12.04/precise host system and installed Ubuntu 12.04/precise as guest system as well. There are many questions about resolution issues on askubuntu but no question/solution seems to solve my issue.
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