Chinese characters displayed incorrectly in Ubuntu 24.04

[Julian]

Some Chinese characters, such as enumeration comma(、) and full stop(。), displayed incorrectly in text-editor including gnome-text-editor, zim-wiki, and sublime-text etc. While in firefox everything displayed without problem.

Most special case is vscode, it have the same problem when use Chinese punctuation with English words, while used with Chinese words it could auto correct the display problem.

For examples the pictures in attachment shown the display of `测试、test、1、2、3、4、5、6。` and `test、测试、1、2、3、4、5、6。` in gnome-text-editor and vscode.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: gnome-text-editor 46.1-1
ProcVersionSignature: Ubuntu 6.8.0-31.31-generic 6.8.1
Uname: Linux 6.8.0-31-generic x86_64
ApportVersion: 2.28.1-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 29 08:38:45 2024
InstallationDate: Installed on 2024-04-27 (2 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
SourcePackage: gnome-text-editor
UpgradeStatus: No upgrade log present (probably fresh install)

[Cristiano Fraga G. Nunes (cfgnunes)]

Thanks, maybe you could also report it upstream on https://gitlab.gnome.org/GNOME/gnome-text-editor/-/issues ?

[Julian (gapplef)]

Actually, I am not sure is this a bug specific to gnome-text-editor, because all kinds of text editor are affected. I only choose gnome-text-editor for reporting the bug.

[Sebastien Bacher (seb128)]

Could be a GTK toolkit problem if it's impacting several applications, would be worth reporting upstream still on https://gitlab.gnome.org/GNOME/gtk/-/issues

[Julian (gapplef)]

This maybe something relate to the default font for Chinese characters in Ubuntu 24.04.

After set custom font to `Monospace` or `Noto Sans CJK` in perferences of gnome-text-editor, the problem auto solved, while with `Ubuntu`, `Ubuntu Mono` or `Ubuntu Sans`, the problem exist.

Where should I report bug relate to the font?

[Sebastien Bacher (seb128)]

The upstream project for the Ubuntu fonts is https://github.com/canonical/Ubuntu-Sans-fonts , it would nice if you could report the problem also there

[Julian (gapplef)]

Done! https://github.com/canonical/Ubuntu-Sans-fonts/issues/117