GNU bug report logs - #43177
Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1'

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Package: emacs;

Reported by: Alexander Shukaev <emacs <at> Alexander.Shukaev.name>

Date: Thu, 3 Sep 2020 07:20:02 UTC

Severity: normal

Fixed in version 28.1

Done: Robert Pluim <rpluim <at> gmail.com>

Bug is archived. No further changes may be made.

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Message #86 received at 43177 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Robert Pluim <rpluim <at> gmail.com>
Cc: 43177 <at> debbugs.gnu.org, schwab <at> linux-m68k.org, emacs <at> Alexander.Shukaev.name
Subject: Re: bug#43177: Bug: Emacs 27.1 hangs forever in
 `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1'
Date: Thu, 03 Sep 2020 20:37:47 +0300

> From: Robert Pluim <rpluim <at> gmail.com>
> Date: Thu, 03 Sep 2020 17:10:30 +0200
> Cc: 43177 <at> debbugs.gnu.org, Alexander Shukaev <emacs <at> Alexander.Shukaev.name>
> 
> >>>>> On Thu, 03 Sep 2020 16:48:04 +0200, Andreas Schwab <schwab <at> linux-m68k.org> said:
> 
>     Andreas> On Sep 03 2020, Robert Pluim wrote:
>     >> Does it go away if you set font-backend . ftcrhb in your frame
>     >> parameters (assuming youʼre using Cairo)?
> 
>     Andreas> That completely removes the delay.
> 
> So the solution is easy: just deprecate and remove the 'x' backend :-)

Easy: yes.  Possible: no.  Unfortunately.

Do we understand why including the x backend produces such a huge
delay?  Where is most of that time spent, and why?
This bug report was last modified 4 years and 248 days ago.

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