Note: rxvt does not seem to work at all with control-page-up/down in
vim, and sends \E[[5^ and \E[[6^ for them.
If you look at :he xterm-modifier-keys, you'll see that screen can only
know that control-pgup/down are supported if it can detect that it is
running under xterm (TERM is xterm or similar). I verified this by
digging around in the vim source code. Vim uses special internal codes,
when it detects that its terminal is fully xterm-compatible, to tell
itself that the terminal supports modifiers on things like pgup/down.
The trouble is, that if vim detects that it's running under screen,
there is absolutely no way for it to tell whether screen is running
under an xterm or not, and so no way it can determine control-key
support. So there is no way to make control-pgup/down work automagically
under vim.
If you know that your own screen sessions will always only be under an
xterm-compatible terminal, then your nmap commands will work; a little
better might be:
:set t_kN=<ESC>[6;*~
:set t_kP=<ESC>[5;*~
This will enable your vim to recognize not only xterm's Control-
pgup/down, but also pgup/down with other modifiers such as alt.
Closing this bug out, due to a lack of fixability. Perhaps if the
terminfo database can someday be updated to include capabilities for
such things, we can revisit this.
** Changed in: screen (Ubuntu)
Status: Confirmed => Rejected
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Screen mistakingly catches Control-PgUp Control-PgDown
https://bugs.launchpad.net/bugs/82708
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