Both my local and remote are Ubuntu 18, though I have seen it in 16 as well.
I establish a ssh to my remote server, start tmux (
2.1.3), something causes the pipe to break. When I ssh back in, but before I start tmux, whenever I click in the terminal screen, it writes a bunch of junk to the buffer, like
I've deduced that these numbers are of the form
N;X;YM, where N is 0, 1, 2... for left click, middle, right click, X and Y are proportional to the location of the mouse click,
M is mouse down,
m is mouse up.
Clearly, this is some kind of in-band signalling, and I am pretty sure it relates to
option mouse on. But where is it coming from? Is it just a Tmux thing, an ssh thing, or a Gnome terminal thing?