Two other bugs I encounter which may not be related to the 3D acceleration EDIT: When using pause the gray out effect isn' working when running a 3D accelerated desktop (3D acceleration on) like Unity in Ubuntu.The Mini-toolbar and ctrl+home menu is invisible when running full screen with a 3D accelerated desktop like Unity or Windows 7 Aero.The preview in the VirtualBox main window shows a black screen when running a 3D accelerated desktop (3D acceleration on) like Unity in Ubuntu.ATI Mobility Radeon HD 5470 (Driver version 11.07) Windows 7 Home Premium 64-bit Intel VT-x enabled Core i3 proccessor (4 cores cores reported, I think it's 2 hyperthreaded to 4) 1 GB ram allocated to guest 2 CPU Guest SMP 8GB. VirtualBox 4.1.4 Guest Additions 4.1.4 installed Ubuntu 11.04 Up-to-date no extra packages other than the guest additions from the guest additions. (going black not redrawing showing only parts of stuff) Some time after having Ubuntu 11.04 running with unity 3D (3D acceleration enabled) The desktop part of the screen enters a corrupt state and stops showing correctly.I'm using a Windows 7 64-bit host with an ATI graphics card and a Ubuntu 11.04 Desktop guest. I did not know that! I've been behind the times heretofore.I'm encountering several bugs with the 3D acceleration support in VirtualBox. Windows 7 is in fact not a fully supported guest OS, it seems to have dropped to limited guest support at 6.1.18. For full 3D acceleration using the old stable code, downgrade all three. 3D acceleration won't be possible if you only downgrade the GAs. Then you could downgrade Virtualbox, Extension Pack and Guest Additions to 6.1.something, or at least the Guest Additions. (on Debian/Ubuntu/Mint hosts, you may have to install the vulkan-tools package). If your host OS is Linux, please provide a zip file with the output of the 'vulkaninfo' command in the Bugtracker ticket, too. Please create a ticket in the Bugtracker with the problem description, the manufacturer and model of the host PC's graphics card, the graphics driver version (on the host OS), and a (zipped) VBox.log file. If that stabilizes the VM, please note that this happened.
If this does not get a stable VM, and you have 3D acceleration turned on, try running the VM with 3D acceleration turned off. Please upgrade to the latest 7.0 Virtualbox, Extension Pack if used, and Guest Additions. Screenshot with problem Artifacts.jpg (100.28 KiB) Viewed 2380 timesħ.0 is still in bug-hunt phase, and graphics had a code change. GPU: AMD Radeon RX 6600 (Navi 23) (GIGABYTE) I need Aero effects turned on, becouse I want to record tutorial with Windows 7 theme - and I need virtual machine for it. I even tried downgrade VirtualBox to version 6.1, but the same problem - both on 6.1 and 7.0.4. Screenshot with problem is in attachments I've tried reinstalling the host system and updating all drivers (both host and virtual), installing Windows 7 from two other ISOs, but nothing helps. There are no issues with Aero effects disabled. The taskbar on Windows 7 gets distorted when transparency is enabled. Since yesterday, I've been experiencing strange graphical artifacts (glitches) in VirtualBox.