GNU bug report logs - #30874
Displaying char \x274C with Dejavu Sans Mono gives "X protocol error: BadLength (poly request too large or internal Xlib length error) on protocol request 138"

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 30874 <at> debbugs.gnu.org, rpluim <at> gmail.com, jsynacek <at> redhat.com
Subject: bug#30874: 27.0.50; Emacs crashes
Date: Fri, 30 Mar 2018 11:00:43 +0300

> From: Glenn Morris <rgm <at> gnu.org>
> Cc: Robert Pluim <rpluim <at> gmail.com>,  30874 <at> debbugs.gnu.org,  jsynacek <at> redhat.com
> Date: Fri, 30 Mar 2018 01:10:27 -0400
> 
> Eli Zaretskii wrote:
> 
> > Does harfbuzz require Cairo?  If it does, that's unfortunate, because
> > the Cairo rendering option currently has a few known and annoying
> > redisplay bugs, which no one seems to be willing/capable of fixing.
> 
> Jan mentioned this in the initial addition of cairo:
> 
> http://lists.gnu.org/archive/html/emacs-devel/2015-02/msg00795.html
> 
>    [...] it is just a step to keep up with the times, i.e. server side
>    (as in X11 server) rendering is going away as it seems. So Emacs must
>    at some point develop client side (cairo) rendering.

Yes, we hoped Cairo will gradually take over the current defaults, but
its problems must be fixed before we can do that.

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