id summary reporter owner description type status component version resolution keywords cc guest host 20590 Guest window size decreases on login (Linux) Patrick Headley "I had one OpenSuSE 15.2 guest machine unexpectedly go back to a resolution of 1024X768 after rebooting and logging in. I was able to click and drag the window to increase the display size to fix the issue. Things that didn't work were: using the display settings within the OS to set a resolution Using the View menu to set Auto-resize Guest Display and then use the View menu to set the display size for Virtual Screen 1. In both cases the screen would resize as expected but, after a reboot and logging in again the screen size would jump back to 2014X768. When 3D acceleration was turned off I could see that the screen size was initially at the selected size before jumping back to 1025X763. With 3D acceleration turned on I cannot see the jump. 3D acceleration was initially turned off. Turning it on didn't change the symptoms. Using VMSVGA " defect new guest additions VirtualBox 6.1.26 guest display size decreases Linux Linux