On 2020-10-01, Christian Brabandt wrote:
> On Mi, 30 Sep 2020, Bram Moolenaar wrote:
>
> > > As I recall, VimEnter is too early.
>
> Would a timer work?
Perhaps. And it might be better than nothing. But timers carry the
risk that you wait too long on fast systems/connections and not long
enough on slow systems/connections.
> > > I often work remotely, with a terminal on my desktop at home or in
> > > an office and the host on which Vim is running many miles away,
> > > often through a relatively slow network. For a while, after either
> > > my xterm changed or Vim changed so that t_Co was reset after
> > > receiving the termresponse, my vim screen would flash at startup
> > > because it would first be drawn using t_Co=16 as set in my vimrc,
> > > then be redrawn a moment later at t_Co=256 when the termresponse was
> > > received.
> >
> > That's why I was thinking of disabling the mechanism, to avoid the
> > flicker. Of course you then need to manually set the value.
>
> Do you mean, if the option is set manually in vimrc, disable the
> termresponse? That would be a good compromise, I think.
The problem is, in my case, that I use a variety of terminals
running in a variety of operating systems to access vim on a variety
of hosts. Sometimes I run vim locally while at other times I run it
over an ssh connection. TERM is unreliable--almost every terminal
claims it's an xterm. The termresponse has been for me an excellent
means of determining the terminal type. It's just a little slow.
Disabling it would leave me as if back in pre-termresponse days with
terminal-dependent settings that weren't optimum and colors that
were often unreadable.
What I would like to be able to do--although I haven't tried this so
I might not like it after all--is to send t_RV at the start of my
vimrc, wait for the response (with a timeout), let Vim do what it
normally does upon receiving a termresponse, then continue with
the processing of the rest of my vimrc. The termresponse exchange
normally happens in a fraction of a second, before I can type my
first keystroke anyway, and in less time than it takes to start Vim
on Windows, and the delay would prevent the flickering of a second
display refresh.
Regards,
Gary
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