bug#57434: 28.1.91; Terminal Emacs Mac OS flickering.

[Dmitrii Kuragin via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

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In my config, I just use different themes. But, when I run w/ "-Q" I have
the same color, but text flickers, not the background. It is less visible,
but it erases some lines of text and brings them back.

On Mon, Aug 29, 2022 at 11:04 PM Gerd Möllmann <gerd.moellmann@gmail.com>
wrote:

> Eli Zaretskii <eliz@gnu.org> writes:
>
> > Gerd, do you see the same on your system?
>
> No, I can't reproduce this.
>
> After watching Dmitrii's video I thought it might be related to a light
> terminal background color (I normally use a black background), so I
> tried that, but no flickering.  I don't know what else to try now to
> reproduce this.
>
> Maybe it helps if I describe exactly what I'm doing?
>
> ~/ > uname -a
> Darwin Mini.fritz.box 21.6.0 Darwin Kernel Version 21.6.0: Wed Aug 10
> 14:28:35 PDT 2022; root:xnu-8020.141.5~2/RELEASE_ARM64_T8101 arm64
> ~/ > infocmp -V
> ncurses 5.7.20081102
> ~/ > echo $TERM $LINES $COLUMNS
> xterm-256color 95 364
> ~/ > cd emacs/master/src
> [master] gerd@Mini 2022-08-30 7:50
> ~/emacs/master/src/ > emacs -nw -Q xdisp.c
> [master] gerd@Mini 2022-08-30 7:51
>
> C-x 3
> C-x o
> C-x b *scratch* RET
> C-x o
>
> Make the xdisp.c window scroll with C-n/C-p, C-v/M-v.
>
> No flickering here.
>
> Dmitrii, how do you set Emacs' background?  Is that the terminal's
> background, or does it perhaps come from your Emacs config?  Or IOW, do
> you test this with emacs -Q?
>
>

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