On Fri, Jun 20, 2025 at 7:35 PM Jeffrey Walton <noloa...@gmail.com> wrote: > > I'm working on Ubuntu 22.04.5, amd64, fully patched. It provides QEMU > 1:6.2+dfsg-2ubuntu6.26 and libvirt 8.0.0-1ubuntu7.11. > > The problem I am experiencing is, when the host machine blanks the > monitor, I lose the display on the guest when I sit back down at the > computer and wake the monitor. The error message (?) in the guest > window is, "Display output is not active." The condition happens with > both VIRTIO and VGA models. Also see <https://imgur.com/a/tEp73k2>. > > I have not found a workaround to stop it from happening or recover > after it happens. I have to Force Off the VM and then restart the VM > to the display back. > > My host power configuration is: disable sleep, suspend, hibernate and > hybrid-sleep via systemd's systemctl. However, I allow the monitor to > be turned off after 15 minutes of inactivity. My guest power > configuration is whatever the distro provides. > > Based on my searching, others have experienced the problem. And one > fellow says switching to the VGA model fixed it for him. (But no joy > for me).
Here is the post where the person says VGA fixed it for him: <https://www.tarball.ca/posts/cockpit-kvm-display-output-is-not-active/>. But again, no joy for me. > Does anyone have any suggestions for a work around? > > Thanks in advance. (And my apologies if this is the wrong list). Jeff
