virtualbox.org

I have a couple (6) of Mint Mate hosts 7.23 - they ran 7.2.4 with guests for 30 days with no issues. All my Virtualbox are done by adding the Oracle repo and "apt-get install virtualbox-7.2". The guests are Windows 11, Mint, Kali, Ubuntu and Opensuse.

I installed 7.2.6, host guest additions and guest additions on each guest the day it was released (28 January).

After 5 days, I have had 8 different Linux guest have the video frozen, no mouse or keyboard - the host interface worked.

I found that if I waited 10 minutes, the autosave in apps still worked as my data was saved and I could still ssh in and do a reboot now and the guest would come back.

I have had none of the 6 windows guest freeze up - just Linux guests.

Anyone else seeing this?

If this is occurring across multiple different Linux distros (Kali, Mint, OpenSUSE) after roughly 5 days of uptime, it may point to a memory leak in the host's VMM graphics buffer or a resource exhaustion issue in the 7.2.6 host modules. Could you monitor the 'VBoxHeadless' or 'VirtualBoxVM' process memory usage on the Mint host during those 5 days? Additionally, check the host's 'dmesg' output for any 'vboxdrv' errors. The fact that a soft reboot via SSH restores functionality suggests the guest is able to re-initialize the virtual hardware state, which further points to a software-level driver hang rather than a hardware-assisted virtualization failure.