virtualbox.org

Hello All;

I have upgraded my VirtualBox from VirtualBox-6.1.30-148432-Win to VirtualBox-6.1.34-150636-Win. I was able to get it started after many tries, I do get the log-in screen but after logging in I just get a blank screen.

I downgraded back to VirtualBox-6.1.30-148432-Win, and all is OK again. I have also tried VirtualBox-6.1.32-149290-Win, I can not even get the VM to boot with this version.

Host Details: Windows 10 64 bit, 32G physical memory,
VM Details: Ubuntu 20.04.4 LTS, 8GB physical memory.

The attached logs include the logs for the working VirtualBox-6.1.30-148432-Win and the failing VirtualBox-6.1.34-150636-Win.

Thank you.

Hyper-v is enabled. This matters more to 6.1.34 than it did to 6.1.30.

00:00:03.079434 HM: HMR3Init: Attempting fall back to NEM: VT-x is not available
00:00:03.126705 NEM: info: Found optional import WinHvPlatform.dll!WHvQueryGpaRangeDirtyBitmap.
00:00:03.126763 NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...

HMR3Init: Attempting fall back to NEM (Hyper-V is active).