It appears that increasing the graphical ram in the Video QXL device may have helped, due to the nature of the issue it's hard to say for sure but will report back.
To be clear, I would still consider this a bug to at least fail with a segfault as opposed to a more reasonable error report if there were issues with not having enough graphical-related ram. Ideally, there shouldn't be any issue with the default settings KVM/Libvirt/virt- manager sets up for you. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-qxl in Ubuntu. https://bugs.launchpad.net/bugs/2095065 Title: Frequent spice agent crashes as KVM/Libvirt guest Status in xserver-xorg-video-qxl package in Ubuntu: New Bug description: Having an issue in Ubuntu 24.04 (desktop) when running as a guest in KVM/Libvirt. The system starts fine and works for a time (often short, sometimes longer). However, eventually the system display halts, and after a time goes all black. Occasionally, the system might regain responsiveness, but more likely never does, and requires a restart. A soft restart is adequate, and the system responds to the queue to shutdown. The halting does not seem to be related to workload and occurs on a system running idle with adequate resources. After restarting, an error report displays saying that spice-vdagent crashed with a SIGSEV. This seems to be a recent development, but the issue has happened more occasionally in the past. However, it has become a frequent enough issue to make the experience unusable. Guest vm set up with a standard process on both Ubuntu and Fedora hosts, using default VM settings and reasonable resources allocated. Additional details below. Ubuntu 24.04.1 LTS ``` $ apt-cache policy spice-vdagent spice-vdagent: Installed: 0.22.1-4build3 Candidate: 0.22.1-4build3 Version table: *** 0.22.1-4build3 500 500 http://us.archive.ubuntu.com/ubuntu noble/main amd64 Packages 100 /var/lib/dpkg/status ``` To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-qxl/+bug/2095065/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

