Codespaces: Terminal: MesloLGS NF's (Nerd Font patched) glyphs and symbols not rendered properly

[benz0li]

Does this issue occur when all extensions are disabled?: Not relevant

• VS Code Version: 1.94.2, 384ff7382de624fb94dbaf6da11977bba1ecd427, x64
• OS Version: Debian 12 (bookworm)

Steps to Reproduce:

1. Open https://github.com/b-data/data-science-devcontainers

2. Codespaces > New with options...

   • Dev container configuration: Python base

3. Install font Meslo LGS NF

   mkdir -p ${HOME}/.local/share/fonts/truetype/meslo
   curl -sSL https://github.com/romkatv/powerlevel10k-media/raw/master/MesloLGS%20NF%20Regular.ttf -o "${HOME}/.local/share/fonts/truetype/meslo/MesloLGS NF Regular.ttf"
   curl -sSL https://github.com/romkatv/powerlevel10k-media/raw/master/MesloLGS%20NF%20Bold.ttf -o "${HOME}/.local/share/fonts/truetype/meslo/MesloLGS NF Bold.ttf"
   curl -sSL https://github.com/romkatv/powerlevel10k-media/raw/master/MesloLGS%20NF%20Italic.ttf -o "${HOME}/.local/share/fonts/truetype/meslo/MesloLGS NF Italic.ttf"
   curl -sSL https://github.com/romkatv/powerlevel10k-media/raw/master/MesloLGS%20NF%20Bold%20Italic.ttf -o "${HOME}/.local/share/fonts/truetype/meslo/MesloLGS NF Bold Italic.ttf"
   fc-cache -fv
   

4. Install Zsh theme Powerlevel10k

   git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ${HOME}/.oh-my-zsh/custom/themes/powerlevel10k
   

5. Change Zsh theme to Powerlevel10k

   sed -i 's/ZSH_THEME="devcontainer"/ZSH_THEME="powerlevel10k\/powerlevel10k"/g' ${HOME}/.zshrc
   

6. Open a new Terminal

---

Safari v18.0.1 (20619.1.26.31.7); Terminal › Integrated: Gpu Acceleration: auto

Does this look like a diamond (rotated square)? Yes

Does this look like a lock? No

Cross reference:

• https://github.com/coder/code-server/pull/7026#issuecomment-2423630849

[benz0li]

Safari v18.0.1 (20619.1.26.31.7); Terminal › Integrated: Gpu Acceleration: off

Does this look like a diamond (rotated square)? No

[benz0li]

Firefox 131.0.3; Terminal › Integrated: Gpu Acceleration: auto

Does this look like a diamond (rotated square)? Yes

Does this look like a lock? No

[benz0li]

Firefox 131.0.3; Terminal › Integrated: Gpu Acceleration: off

Does this look like a diamond (rotated square)? No

Ping @Tyriar

[benz0li]

Interestingly, Firefox displays the Terminal with MesloLGS NF correctly at https://coder.jupyter.b-data.ch (code-server 4.94.2-rc.1 – aka Code 1.94.2).

[benz0li]

The Terminal with MesloLGS NF worked fine for both Safari and Firefox up to code-server 4.93.1 – aka Code 1.93.1.

This version is currently deployed at https://demo.jupyter.b-data.ch.

[Sovanda-Mith]

Version: 1.95.0 Os: Linux x64 6.8.0-47-generic snap

The issue still persists, my integrated terminal that uses the font family MesloLGS NF cannot rendered glyphs and symbols properly, what could be causing this problem and will there be a fix for this soon?

[benz0li]

The problem is resolved for code-server v4.95.1-rc.2 – aka Code 1.95.1.

The problem still persists on Codespaces.

No problem with VS Code.

[benz0li]

As I need to patch code-server to make this[^1] work, I do not think this works with Codespaces as is.

[^1]: Using a patched Nerd Font as Terminal Font Family.