emacs (v.26.3) can distinguish, out of the box, C-M-v (scroll-other-window) and C-M-S-v (scroll-other-window-down).
On the other hand, emacs -nw, when run in either gnome-terminal, mate-terminal or xterm, translates C-M-S-v to C-M-v, even when I explicitly set the former.
(Also, as a side note, xterm demands I use ESC rather than the "Alt" key, which is actually "Meta". Bonus question: why?)
Anyone know how I can deal with this?
C-M-vfromC-M-S-voutside Emacs?catat the terminal & checked the output (in that case of M-<arrow>) by typing the key combinations. In this case, onxterm, neither C-M-v nor C-M-S-v produce any output, thoughemacsdoes respond to them. Ongnome-terminal, I'm not getting something that makes sense to me. C-M-v produces on the terminal "^[^" (without the quotes), but then when I follow it with another key, say "a", the second "^" disappears & I get "^[a". It is true that C-M-S-v produces the same result.^[isCONTROL-[, which is the ASCIIESCAPEcontrol character (one char, written^[sometimes). So^[^would beESC-^and^[awould beESC-a. I'm guessing you need to do something with the terminal itself, but maybe someone will suggest a solution from within Emacs. Otherwise, maybe try googling for escape control sequences and terminal. Maybe this is a start: termsys.demon.co.uk/vtansi.htm. Or this: docs.microsoft.com/en-us/windows/console/…emacs -nwis for some reason ignoring the explicit setting.