Hi, I've observed some latency issues, for example, changing focus from one terminal to another is a bit sluggish. Typing isn't too bad. Interaction with the sliding GNOME unlock screen and drawing the desktop after unlock is painfully slow. The virtual server I connect to runs Debian jessie and GNOME 3 desktop, it is a default install: Xorg = 2:1.16.4-1 xserver-xorg-video-qxl = 0.1.1-2+b1 spice-vdagent = 0.15.0-1.2 I'm monitoring the latency of the connection to the KVM/libvirt/SPICE server with Smokeping, average ping time is about 0.8ms, no packet loss. I've setup the KVM/libvirt/SPICE host like this: Debian stretch Kernel = 4.9.13 libspice-server1 = 0.12.8-2.1 libvirt0 = 3.0.0-3 I've tried using both virt-manager and virt-viewer as clients on a Debian jessie system, connecting over SSH to the KVM host, these are the client versions: virt-manager = 1:1.0.1-5 virt-viewer = 1.0-1 I noticed it appears a little better with virt-manager than virt-viewer, should there be any difference between these two products if they both use the same protocol? Can I do anything to tweak the .ssh/config to make it better? It occurred to me that adding "IPQoS lowdelay" might be useful as it defaults to "throughput" for non-interactive connections. Maybe virt-manager should add that on the ssh command line? Is there any way to see SPICE latency statistics in the virt-manager GUI? Would any other SPICE viewer make a difference? Are there any changes I should make to the GNOME desktop configuration to make it work better through SPICE? I've heard people comment on changing to fvwm. Can anybody make any other suggestions? Regards, Daniel _______________________________________________ Spice-devel mailing list Spice-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/spice-devel