id summary reporter owner description type status component version resolution keywords cc guest host 14409 Win 10 Resizes to Smallest Screen after Mac Host goes to sleep Dirk Watkins "Mac Host: Yosemite Virtual Box 5 Windows 10 guest Latest guest additions installed I have my VM open, using 2 monitors full screen. When my mac host goes to sleep the Windows 10 guest goes to 1 monitor, and on that monitor it goes to 800x600 instead of full screen. I am unable to get resize the actual Windows 10 screen although I can resize the VirtualBox container window, also I am unable to discover the second monitor. If I reboot the Windows 10 guest, it works again. " defect closed other VirtualBox 5.0.0 fixed windows 10, Yosemite Windows Mac OS X