For further clarification: are you connecting to a vncserver service running within the guest VM? Or are you connecting to the qemu VNC head on the server which hosts the virtual machines? Also, on which host and environment are you seeing the 'low graphics mode' dialog box?
Thank you for filing this bug.
For further clarification: are you connecting to a vncserver service running within the guest VM? Or are you connecting to the qemu VNC head on the server which hosts the virtual machines? Also, on which host and environment are you seeing the 'low graphics mode' dialog box?