thank you for the suggestions. sorry to imply that it crashed immediately or every time i tramp... it is with long running emacs sessions with multiple remote ssh buffers. may take a few days before it pops. will provide more information when available. x86_64 openSUSE Leap 42.1 not gnome3 - but MATE - because desktop not touchpad and vnc hosted session - using mac jollyfastvnc client this MATE thing may be it, eh? i will try the x11 one and see if that helps.