tags 29716 + patch
quit

semente <semente@riseup.net> writes:

> On gnome-terminal 3.22.2 (Debian Stretch), for some reason, Emacs is
> setting the background-mode to light when I'm running a dark
> background. On xterm or ttys it works fine.

> $ printf '\e[>0c'
> 1;4601;0c
>
> $ printf '\e]11;?\e\'
> 11;rgb:2323/2727/2929
>
> $ echo $TERM
> xterm-256color

I think the attached should do the trick then.  There are two other
xterm features that Emacs tries to use based on version number; I'm not
sure how to test if your version of gnome-terminal supports them or not
though (so I played it safe in the patch and use the query background
feature only).

    (defun xterm--version-handler ()
      ...
        ;; If version is 216 (the version when modifyOtherKeys was
        ;; introduced) or higher, initialize the
        ;; modifyOtherKeys support.
        (when (>= version 216)
          (xterm--init-modify-other-keys))
        ;; In version 203 support for accessing the X selection was
        ;; added.  Hterm reports itself as version 256 and supports it
        ;; as well.  gnome-terminal doesn't and is excluded by this
        ;; test.
        (when (>= version 203)
          ;; Most xterms seem to have it disabled by default, and if it's
          ;; disabled, C-y will incur a timeout, so we only use it if the user
          ;; explicitly requests it.
          ;;(xterm--init-activate-get-selection)
          (xterm--init-activate-set-selection))...)