Ctrl-_ (ctrl-shift-minus) and Ctrl-/ blocked

[iarna]

This is the undo key in a number of text editors (including one of the undo keys in emacs).

Unbinding Ctrl-minus does not help, the terminal still doesn't send any sequence through to the pty.

The same sequence can also usually be sent with Ctrl-/, but that also seems to do nothing.

[nonamestreet]

It is quite annoying for emacs user.

[scrouthtv]

Ctrl-Enter is blocked as well.

[timadye]

This is a blocker for me :( Ctrl-Shift-Minus is also undo key for bash. Ctrl-X Ctrl-U can also be used, but is problematic as Ctrl-U on its own removes the preceding line.

[hanskokx]

It is quite annoying for emacs user.