Subject: Re: bug#43363: 27.1; Wrapped comment line that contains cyrillic text is displayed in different colors

From: Eli Zaretskii <[email-masked]>
Date: Mon, 14 Sep 2020 21:32:50 +0300

> From: Драгољуб Шишовић <[email-masked]>
> Date: Mon, 14 Sep 2020 15:20:26 +0200
> Cc: [email-masked]
> 
> Also, I'm not sure if replying to you in this manner (directly through email) is good practice or not... sorry if it's
> not.

That's exactly what we expect and ask for.  Just remember to have the
bug address on the CC line, so that this whole discussion is recorded
by our bug tracker.

> Unfortunately, even emacs running without cairo doesn't help. The issue remains. The same goes for
> harfbuzz.
> As for double-buffering, wasn't it removed in emacs v25... so I'm not sure how/what to disable here?

Double buffering was added in Emacs 26, and the way to disable it is
explained in NEWS of that version (NEWS.26 if you have the Emacs 27.1
sources):

  ** Emacs now uses double buffering to reduce flicker when editing and
  resizing graphical Emacs frames on the X Window System.  This support
  requires the DOUBLE-BUFFER extension, which major X servers have
  supported for many years.  If your system has this extension, but an
  Emacs built with double buffering misbehaves on some displays you use,
  you can disable the feature by adding

    '(inhibit-double-buffering . t)

  to default-frame-alist.  Or inject this parameter into the selected
  frame by evaluating this form:

    (modify-frame-parameters nil '((inhibit-double-buffering . t)))

Please try this.