Hi,

I noticed yesterday that disabling "show window contents while moving" in Mate desktop and XFCE fix this behaviour. I haven't found the setting to do this in Unity, though. Also KDE, LXDE and Windows on the client side don't show this behaviour.

@sunweaver on #x2go on freenode commented that "21:55 <@sunweaver> I guess a sustainabe fix is grabbing the window content client side and keep that static pixmap until movement is over."

Best regards,

Aki