Some Devanagari diacritics are incorrectly displayed using the default sans-serif font on macOS
Categories
(Core :: Layout: Text and Fonts, defect)
Tracking
()
People
(Reporter: mail+ict, Unassigned)
Details
Attachments
(2 files)
Correct diacritic positioning using Kohinoor Devanagari
Several Devanagari diacritics are no longer correctly joined to most letters when using the default sans-serif font on macOS (Devanagari Sangam MN).
For example, take the chart of Devanagari vowels from https://en.wikipedia.org/wiki/Devanagari#Vowels. The first attachment shows how it should look (I've switched it to Kohinoor Devanagari, a similar font).
This means that Hindi text on many sites including Wikipedia and Google now contains frequent, major typographical errors.
I believe this was introduced in version 78 (which means it's in the release channel now), since I started seeing it about that time, but I haven't confirmed this yet. I can currently see it on 79.0b3 and the latest nightly (80.0a1 (2020-07-03)).
I am on macOS 10.15.15. I don't see this when I use Devanagari Sangam MN in word-processing apps, but weirdly, I do see it in the current version of Google Chrome (83.0.4103.116). However, the impact is limited there since Devanagari Sangam MN is not a default.
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Comment 1•5 years ago
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This is what is actually shown using the default sans-serif font.
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Reporter | |
Comment 2•5 years ago
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Okay, I've confirmed, on a different computer, that this bug was not present in 77, but is present after updating to 78.0.1.
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Comment 3•5 years ago
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Bugbug thinks this bug should belong to this component, but please revert this change in case of error.
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Comment 4•5 years ago
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Thanks for reporting, and particularly for identifying the relation to a specific font. This was also reported in bug 1650414, where we've begun to track it, so closing this as a duplicate.
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Comment 5•5 years ago
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By the way, you can work around the problem for now by setting gfx.font_rendering.coretext.enabled to true in about:config.
Description
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