Description of problem:
Upon start-up, gnome-boxes does not always show existing virtual machines. In general, it is sufficient to quit gnome-boxes and to launch it again in order to see the present virtual machines.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Launch gnome-boxes.
No virtual machines are listed.
All existing virtual machines are listed.
As far as I remember, this is not a new issue and already occurred in previous releases of Fedora.
After launching gnome-boxes from the console no VM being displayed, the following message appeared in the console:
"(gnome-boxes:6059): Boxes-WARNING **: libvirt-broker.vala:117: Unable to open qemu+unix:///session: Cannot write data: Transport endpoint is not connected" .
After restarting gnome-boxes, the existing VM was displayed correctly, and no message was issued.
I've had this bug open against libvirt for a while: bug 1271183.
*** This bug has been marked as a duplicate of bug 1271183 ***