id summary reporter owner description type status component version resolution keywords cc guest host 18592 OpenGL has performance and drawing issues after 6.0.6 update. boxer01 "After update to the aforementioned version my Windows 10 1809 host and guest got some problems. First of all the startup time is now double or triple as much as before. One can see the system starting as one would moved back from SSD to plain old HDD. Even if one see something there is a slow reaction on the keyboard and mouse events. So it takes more time from the start of the VM till the moment where you can do something with it. The other one: as soon as host try to dime the display or turn it off, the content of the VM turns black. The programs work fine and you can hear the sound, but you can’t see anything, just black square. The mouse cursor changes itself in case you move it over some places (like border of the program’s window or the link in the browser). I could blindly shutdown the VM through keyboard commands directly in VM. There are some topics ([https://forums.virtualbox.org/viewtopic.php?f=6&t=92756 92756],[https://forums.virtualbox.org/viewtopic.php?f=2&t=92757 92757]) in the forum describing the same behavior. Some other tickets (#18564, #18582) are probably depends on this issue. I tested with 5.2.28, current 5.2.29 and 6.0.7 with the same result. Going back to the 6.0.4, 5.2.26 or 5.2.22 solves this. I saw some changes in the OpenGL using code in the last to weeks, maybe this causing this behavior? I put my logs here, I could see some OpenGL warnings and errors here just 12 minutes after the VM start. Funny enough this not happens on my older Windows 7 guest — Windows 8.1 host system. The Windows 10 systems are all Core i5 3xxx with build-in graphics, also not the youngest ones, but not as old as Windows 8.1 system." defect new 3D support VirtualBox 6.0.6 Windows Windows