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Unicode box drawing rendering issues #2793

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opened 2026-01-30 23:05:16 +00:00 by claunia · 0 comments
claunia commented 2026-01-30 23:05:16 +00:00
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Originally created by @vblazhkun on GitHub (Jul 16, 2019).

Environment

Windows build number: [Version 10.0.18362.239]
Windows Terminal version (if applicable): 0.2.1831.0

Any other software?

- WSL Ubuntu: [1804.2019.521.0]
- Midnight Commander (standard WSL Ubuntu repository).

Steps to reproduce

  1. Install Pragmata Pro Mono Liga 0.827 font (any other Unicode font should work as well).
  2. Install Midnight Commander under WSL Ubuntu. 
    $ sudo apt install mc
  3. Run Midnight Commander. 
    $ TERM=xterm-256color mc -d -S modarin256-defbg
  4. If the issue is not there, try to resize the Terminal window or make it full screen. Press CTRL-O several times.

Expected behavior

All box drawing characters rendered correctly.

Actual behavior

Various characters rendering issues (see the red marks on the picture):

terminal-bug-01

Originally created by @vblazhkun on GitHub (Jul 16, 2019). # Environment ```none Windows build number: [Version 10.0.18362.239] Windows Terminal version (if applicable): 0.2.1831.0 Any other software? - WSL Ubuntu: [1804.2019.521.0] - Midnight Commander (standard WSL Ubuntu repository). ``` # Steps to reproduce 1. Install Pragmata Pro Mono Liga 0.827 font (any other Unicode font should work as well). 2. Install Midnight Commander under WSL Ubuntu. ```shell $ sudo apt install mc ``` 3. Run Midnight Commander. ```shell $ TERM=xterm-256color mc -d -S modarin256-defbg ``` 4. If the issue is not there, try to resize the Terminal window or make it full screen. Press CTRL-O several times. # Expected behavior All box drawing characters rendered correctly. # Actual behavior Various characters rendering issues (see the red marks on the picture): ![terminal-bug-01](https://user-images.githubusercontent.com/7956686/61333018-694b1100-a82e-11e9-908f-69828d9ff5a9.png)
claunia added the Needs-TriageNeeds-Tag-FixNeeds-Attention labels 2026-01-30 23:05:16 +00:00
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Reference: starred/terminal#2793
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