Dec 2009, 20:14 Primary OS: MS Windows 10 VBox Version: PUEL Guest OSses: Windows, Linux scottgus1 Site Moderator Posts: 16795 Joined: 30. Maybe the 'Linux Hosts' forum might get you some different ideas to check. Your issue likely resides in your Linux host.

I don't know if this is happening, but it might be. If it resets the screen size to a small screen, then the guest window would get smaller, thus forcing the guest screen size smaller when 'Auto Resize guest Display' is turned On. What I meant by 'Maybe your host OS loses the monitor settings' is perhaps the Debian host forgets how big the screen size feeding the monitor was when the monitor is turned off. I think you have the setting backwards in your report. The guest OS will change screen size according to what the host window size is, when 'Auto Resize guest Display' is turned On. That it isn't a normal problem is suggested by the fact that the whole forum hasn't blown up over the issue. 'Twould be the normal response - it's always the other guy's fault. Lewish wrote:their response is, it is a VirtualBox driver problem I have spoken with Nvidia, and their response is, it is a VirtualBox driver problem. My graphics card is a ASUS GTX 750 Ti GDDR5 2GB. So, needless to say, I am at a loss as to what is going on.

And it seems that is what it is doing because I have to use the scroll bars to see various area of the desktop. Then, if I look at the screen resolution, it thinks it is displaying 1920 x 983. With 'Auto Resize guest Display' enabled, the result is, I still have as background what was being displayed when I turned the monitor off, but now the active area is the same size as when 'Auto Resize guest Display' wasn't turned on. That is not affected when I turn the monitor off and back on. The host display resolution is 3840 x 2160. I am not sure what you mean by this 'Maybe your host OS loses the monitor settings when this happens? Can you remote into the host OS and watch what the host OS does with the screen which is shown by the monitor you turn off?'

Fix resolution in kali virtualbox