In a terminal window, I'm finding that company-mode completion doesn't work, whereas it does work in a graphical window. For example a down arrow inserts the text
OB and M-n simply inserts
As a workaround, I've followed this answer to use C-n and C-p like so
(with-eval-after-load 'company (define-key company-active-map (kbd "C-n") #'company-select-next) (define-key company-active-map (kbd "C-p") #'company-select-previous))
but I'd prefer to use the same keys whether I'm running graphically or via ssh.
This used to work, and I've upgraded my configuration files and installed a lot more packages recently, but even reducing my initialization file down to just the company mode code didn't fix the problem.
Edit: I've isolated the problem down to this line of code that I copied from the graphene package that redefines ESC to abort the completion.
(define-key company-active-map (kbd "ESC") 'company-abort)
I can see how this might stop M-n and M-p working because
ESC has got something to do with the Alt key in emacs. I can workaround the problem in a terminal using
(if (display-graphic-p) (with-eval-after-load 'company (define-key company-active-map (kbd "ESC") 'company-abort)))
which means that single ESC aborts completion in a graphical frame, and triple ESC aborts in a terminal.
However is it still be possible for the arrow keys to work with single ESC? My preference is to use arrow keys and single escape if possible.