After todays update on tumbleweed the windows VB I have would start but when the desktop should appear all stayed black, an ACPI shutdown did a nice shutdown, so it was running fine it seems.
Did a roll back and installed just the Virtualbox update 7.0.10 and the mandatory kernel update to see if it was this or any of the other updates today, sadly it would behave the same.
Then cursed to myself that I probably forgot the extension pack but sadly that did not make a difference either.
So again rolled back, booted up the VB, uninstalled the guest addon 7.0.8
Closed the VM
Installed 7.0.10 again (and the kernel and the extension pack)
Booted up and got my desktop (small size as no addon installed)
Installed addon, right away got a black desktop again, pressed enter a few times (as I suspected the addon install would prompt for a reboot and indeed the VB rebooted, but saldy back to a black desktop.
So for now rolled back and locked VB 7.0.10, which sadly also locks the Kernel
If you select TPM for a Windows machine and the TPM data is not valid - the Windows machine will not load in 7.0.10.
Unselect TPM and see if you Windows machine loads. If so the TPM data is bad, I don’t know how to tell windows to reinstall the TPM data.
VirtualBox 7.0.10 for 15.5 is in the Queue for QA then if it passes QA it is released to the masses - There is little to do for 15.4 but security fixes so it goes thru QA faster than 15.5 which has a lot of other apps in development in the queues - Tumbleweed gets 1st Priority as I see it as it does not need SUSE blessings as it is independent from SUSE development. 15.4 and 15.5 have to have SUSE blessings (What I think is the reason for the long Queues).
My opinion - not fact but observation. Larry and I did release 7.0.10 3 days after Oracle released it. Then it was reject by the build system - we found the reason (new require statement had to be added that was not needed 2 weeks earlier) it successfully built in day 5 and it was finally release to Tumbleweed in day 7.
If you are impatient for 7.0.10 and do not care about secure boot - the Oracle/VirtualBox leap version for 7.0.10 works fine. It is not signed so it will not work in a secure system - you do have to have to install the source code for the kernels for it to work in OpenSUSE.