Video streaming detection heuristics in spice-server have problems keeping modern desktop animations (as done by gnome shell) and real video playback apart. This leads to jpeg compression artefacts on your desktop, due to spice using mjpeg to send what it thinks is a video stream.
Turn off video detection by default to avoid these artifacts. Signed-off-by: Gerd Hoffmann <kra...@redhat.com> Reviewed-by: Alon Levy <al...@redhat.com> --- ui/spice-core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/ui/spice-core.c b/ui/spice-core.c index e4d533d..9fb9544 100644 --- a/ui/spice-core.c +++ b/ui/spice-core.c @@ -776,6 +776,8 @@ void qemu_spice_init(void) if (str) { int streaming_video = parse_stream_video(str); spice_server_set_streaming_video(spice_server, streaming_video); + } else { + spice_server_set_streaming_video(spice_server, SPICE_STREAM_VIDEO_OFF); } spice_server_set_agent_mouse -- 1.8.3.1