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Font rendering issue; characters appear at wrong size, position #6159

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opened 2026-01-31 00:31:17 +00:00 by claunia · 6 comments
claunia commented 2026-01-31 00:31:17 +00:00
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Originally created by @tuscen on GitHub (Jan 27, 2020).

Environment

Windows build number: 10.0.18363.0
Windows Terminal version (if applicable): 0.8.10091.0

Font: JetBrains Mono

Steps to reproduce

Sometimes font doesn't render properly: some characters are too tall or too short. Sometimes it's numbers, sometimes it's capital case letters. Regular conhost window or ConEmu don't have this problem.

Expected behavior

Font characters render properly.

ConEmu example. Everything seems to render properly.

conemu conemu

Actual behavior

Some characters are too tall or too short. You can see it in capital case letters.

Аннотация 2020-01-27 154648 terminal
Originally created by @tuscen on GitHub (Jan 27, 2020). # Environment ```none Windows build number: 10.0.18363.0 Windows Terminal version (if applicable): 0.8.10091.0 Font: JetBrains Mono ``` # Steps to reproduce Sometimes font doesn't render properly: some characters are too tall or too short. Sometimes it's numbers, sometimes it's capital case letters. Regular conhost window or ConEmu don't have this problem. # Expected behavior Font characters render properly. ConEmu example. Everything seems to render properly. <img width="396" alt="conemu" src="https://user-images.githubusercontent.com/1078199/73177350-dade1300-411f-11ea-822b-20eedbc62c46.png"> <img width="130" alt="conemu" src="https://user-images.githubusercontent.com/1078199/73178851-280fb400-4123-11ea-84c8-d08f6742d114.png"> # Actual behavior Some characters are too tall or too short. You can see it in capital case letters. <img width="287" alt="Аннотация 2020-01-27 154648" src="https://user-images.githubusercontent.com/1078199/73176761-52ab3e00-411e-11ea-9148-f3accb225661.png"> <img width="122" alt="terminal" src="https://user-images.githubusercontent.com/1078199/73178752-f8f94280-4122-11ea-86d0-99aeb5504e55.png">
claunia commented 2026-01-31 00:31:18 +00:00
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@zadjii-msft commented on GitHub (Jan 27, 2020):

This might be related to #610, but this seems subtle enough that it might not be. I'm going to leave this open to make sure we address this particular issue.

@zadjii-msft commented on GitHub (Jan 27, 2020): This _might_ be related to #610, but this seems subtle enough that it might not be. I'm going to leave this open to make sure we address this particular issue.
claunia commented 2026-01-31 00:31:18 +00:00
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@hnakamur commented on GitHub (Feb 15, 2020):

I have the same issue for Japanese characters.
I created a gist to reproduce the problem https://gist.github.com/hnakamur/2a123ce7bdc0d7e5070218c258f990a8
I also added some screenshots there.

You can run the following command in a Ubuntu (Windows Subsystem for Linux) shell.

curl -sS https://gist.githubusercontent.com/hnakamur/2a123ce7bdc0d7e5070218c258f990a8/raw/b3cd604b6f8b0781cd51758afa3e1dd264e7c6d7/swap-myth.txt
@hnakamur commented on GitHub (Feb 15, 2020): I have the same issue for Japanese characters. I created a gist to reproduce the problem https://gist.github.com/hnakamur/2a123ce7bdc0d7e5070218c258f990a8 I also added some screenshots there. You can run the following command in a Ubuntu (Windows Subsystem for Linux) shell. ``` curl -sS https://gist.githubusercontent.com/hnakamur/2a123ce7bdc0d7e5070218c258f990a8/raw/b3cd604b6f8b0781cd51758afa3e1dd264e7c6d7/swap-myth.txt ```
claunia commented 2026-01-31 00:31:19 +00:00
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@zadjii-msft commented on GitHub (Apr 14, 2020):

I know @miniksa was mucking with the baselines in #5345, maybe this is related?

@zadjii-msft commented on GitHub (Apr 14, 2020): I know @miniksa was mucking with the baselines in #5345, maybe this is related?
claunia commented 2026-01-31 00:31:19 +00:00
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@tuscen commented on GitHub (Apr 14, 2020):

Looks like it was fixed. I do use a 4K display with 150% scaling.

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@tuscen commented on GitHub (Apr 14, 2020): Looks like it was fixed. I do use a 4K display with 150% scaling. ![1](https://user-images.githubusercontent.com/1078199/79254073-dc041e00-7e8c-11ea-884a-6022a89346d3.jpg) ![2](https://user-images.githubusercontent.com/1078199/79254076-dc9cb480-7e8c-11ea-97e8-5146c08ead35.jpg)
claunia commented 2026-01-31 00:31:19 +00:00
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@zadjii-msft commented on GitHub (Apr 14, 2020):

@tuscen that's excellent to hear. I'd usually love to have an actual commit to link this to for future people that run into this issue, but we've changed so much about our rendering stack since 0.8 that it'd be hard to pin this down exactly.

Thanks for following up though!

@zadjii-msft commented on GitHub (Apr 14, 2020): @tuscen that's _excellent_ to hear. I'd usually love to have an actual commit to link this to for future people that run into this issue, but we've changed so much about our rendering stack since 0.8 that it'd be hard to pin this down exactly. Thanks for following up though!
claunia commented 2026-01-31 00:31:19 +00:00
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@hnakamur commented on GitHub (Apr 21, 2020):

Sorry for late reporting, but my issue was also resolved since version: 0.10.781.0.
Thanks for a great product!

@hnakamur commented on GitHub (Apr 21, 2020): Sorry for late reporting, but my issue was also resolved since version: 0.10.781.0. Thanks for a great product!
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Reference: starred/terminal#6159
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