Re: '?12$p' shows at the first line, since Vim 8.0.1009

[Marius Gedminas]

On Tue, Aug 29, 2017 at 08:18:59PM +0200, Bram Moolenaar wrote:
> Hirohito Higashi wrote:
> 
> > Hi Bram and list,
> > 
> > How to reproduce:
> > - Run vanilla Vim with specify the 'colorscheme' on terminal
> >   $ vim -Nu NONE --cmd 'colorscheme desert'
> > 
> > Then garbage('?12$p') at the first line. (See the attached file
> > "garbage_on_vim.png")
> > 
> > NOTE:
> > It doesn't occur if you don't specify 'colorscheme' at .vimrc or --cmd.
> > I think patch 8.0.1009 is wrong.
> > 
> > MY env.
> > OS: fedora 25
> > Terminal: GNOME terminal 3.22.1
> >           (TERM=xterm-256color)
> > Vim:
> >   configure option: --enable-gui=gnome2 --enable-terminal 
> > --enable-fail-if-missing
> >   version: 8.0.1010
> 
> Gnome terminal can't handle a standard xterm escape sequence?
> The escape sequence is correct, it works fine on any xterm.
> I verified it correctly gets us the right cursor blink mode.
> 
> I don't see this problem in a gnome-terminal on my system:
> GNOME Terminal 3.20.2

libvte version is more relevant.  On my system (GNOME Terminal 3.20.2,
VTE 0.44.2) printf '\033[?12$p' produces garbage on screen instead of
responding with the expected reply.

But then again I can't find any trace of DECRQM handling in vte's git
master, so I'm surprised you don't see this problem.

I've filed a vte bug: https://bugzilla.gnome.org/show_bug.cgi?id=787007

I've little hope of the fix (even if it's made) making its way into
Linux distros that are used today (e.g. latest upstream VTE is version
0.49.1, while latest Ubuntu release is still on 0.44.2).

Marius Gedminas
-- 
Of course it is very important to support quitting emacs.
        -- Bram Moolenar

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