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

[Vladimir Nikishkin]

I have rebuilt Emacs without pgtk, and to the same effect. :(

On Thu, 5 May 2022 at 13:43, Vladimir Nikishkin <lockywolf@gmail.com> wrote:
>
> >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.)



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