Re: A certain unicode character makes -git Emacs eat all the CPU and become very slow.

[Vladimir Nikishkin]

>Did you try changing that font to one which is actually useful, such as
Source Code Pro?

I have just tried, and the contents of the font-log variable are
appended to this message.
Besides, WQY Micro Hei Mono is a useful font for Simplified Chinese.
No other font has
such beautiful glyphs for SC. And the font itself should not really
matter, a font is just a
set of curves, after all. If it is rendered incorrectly, it is a bug
in the rendering library, not
in the font. A library should accept every font imaginable.

>Also, are you using X or Wayland?  This shouldn't be able to affect
fonts, but X users should not use PGTK.

I have both. I am usually using X, but this effect manifests itself on
Wayland too.

What is wrong about using pgtk with X?
GTK works on X.

On Thu, 5 May 2022 at 13:04, Po Lu <luangruo@yahoo.com> wrote:
>
> Vladimir Nikishkin <lockywolf@gmail.com> writes:
>
> > I am using Emacs-pgtk, commit eaa198cd75ad9cbe4c07532747bcb08516dcc0b2
> >
> > The gtk system font is "Wen Quan Yi Micro Hei Mono". Not a very
>
> Did you try changing that font to one which is actually useful, such as
> Source Code Pro?
>
> > complete font, and its kerning hints are totally broken, but the
> > character shapes are quite nice. But I have tried Emacs with
> > --no-init-file, and I think that the glyph is rendered with a
> > different font (after 5 minutes of grinding), so I am not sure this is
> > font-related.
>
> What is the value of `font-log' after you trigger the freeze with the
> environment variable `EMACS_FONT_LOG' set?
>
> Also, are you using X or Wayland?  This shouldn't be able to affect
> fonts, but X users should not use PGTK.



-- 
Yours sincerely, Vladimir Nikishkin
(Sent from GMail web interface.)

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