Mysterious escape sequences appearing in the input for mouse clicks

[Benson Margulies]

From time to time, one of my iterm2 windows starts to develop an unhealthy interest in other people's mouse clicks that change the selected window. When this situation ensues, every time I click on a window, an escape sequence arrives in the inout buffer of this window. It's not the 'null on idle' business, that's not turned on and the sequence is not a null.

[Chas. Owens]

I have had something similar happen when I was running a terminal program that used the xterm mouse sequences (like vim or tmux) on a remote machine and lost my network connection. Every mouse click sent the escape sequence to the screen until I started and stopped a program that used the xterm escape sequences again.

On Wed, Mar 4, 2015, 00:44 Benson Margulies <ben...@basistech.com> wrote:

From time to time, one of my iterm2 windows starts to develop an unhealthy interest in other people's mouse clicks that change the selected window. When this situation ensues, every time I click on a window, an escape sequence arrives in the inout buffer of this window. It's not the 'null on idle' business, that's not turned on and the sequence is not a null.

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[George Nachman]

It could happen if mouse reporting gets turned on, but the app crashes/ssh session dies/etc that prevents it from getting turned off before you're returned to the prompt. You can tell this is the case because the I-bar cursor will have a circle in its center. Edit>Reset will turn it off.

[George Nachman]

Actually, it's probably not mouse reporting, but focus reporting since you said it's due to window changes. That'll end ESC [ I or ESC [ O, depending on whether focus is gained or lost. That's enabled with ESC [ ? 1004 h and disabled with ESC [ ? 1004 l. Edit>Reset will turn this off as well. The root cause is usually the same as I mentioned before (dead ssh session or app crash).