[1 mod] Style: Greek lowercase chi ('χ') does not descend below baseline

Bug #647092 reported by Kevin Godby
42
This bug affects 8 people
Affects Status Importance Assigned to Milestone
Ubuntu Font Family
High
Unassigned
fonts-ubuntu (Ubuntu)
Undecided
Unassigned

Bug Description

The lowercase Greek Chi current occupies the space between the baseline and the x-height. General tenancy is for 'χ' to be rendered between the x-height and that of other descenders (eg. its companions psi and phi: ψφ).

  https://bugs.launchpad.net/ubuntu-font-family/+bug/609289/+attachment/1631346/+files/GreekFonts.png

If we are purposely going with an unusual style, we should document this decision and the rationale behind it.

Paul Sladen (sladen)
Changed in ubuntu-font-family:
milestone: none → 1.00
importance: Undecided → Medium
status: New → Triaged
summary: - Latin lowercase x and Greek lowercase chi are the same glyph
+ Style: Greek lowercase chi does not descend below baseline
Paul Sladen (sladen)
description: updated
tags: added: uff-greek uff-style
Kevin Godby (godbyk)
description: updated
Revision history for this message
Paul Sladen (sladen) wrote : Re: Style: Greek lowercase chi does not descend below baseline

Interesting, looking back at 0.008, the lowercase chi does reach the bottom of the descender line; it is the same base glyph, but with scaling applied. In 0.009, the scaling appears to have been removed leaving just the base glyph between the x-height and baseline.

Paul Sladen (sladen)
tags: added: uff-chi
summary: - Style: Greek lowercase chi does not descend below baseline
+ Style: Greek lowercase chi ('χ') does not descend below baseline
Revision history for this message
Frédéric Grosshans (fgrosshans) wrote : Re: Style: Greek lowercase chi ('χ') does not descend below baseline

I don't know how it affects greek text, which is obviously the main use case for this font, but it is a problem for me with scientific text where I often have to distinguish x and χ.

Of course, I know Ì should use a different font for that...

Revision history for this message
sterios prosiniklis (steriosprosiniklis) wrote :

This design decision for lowercase chi (which does not affect readability) and the one for lowercase gamma https://bugs.launchpad.net/ubuntu-font-family/+bug/609289 (which reportedly affects readability) are the main reason i change default font in all new installations of ubuntu...

Changed in ubuntu-font-family:
importance: Medium → High
summary: - Style: Greek lowercase chi ('χ') does not descend below baseline
+ [1 mod] Style: Greek lowercase chi ('χ') does not descend below baseline
tags: added: uff-dmi
Changed in ubuntu-font-family:
milestone: 1.00 → 0.92-beta-test
Changed in ubuntu-font-family:
status: Triaged → In Progress
Revision history for this message
Rasmus Underbjerg Pinnerup (pinnerup) wrote :

This bug also affects phoneticists, seeing as the International Phonetic Alphabet – the universal means of notating language sounds – distinguishes clearly between [x], a velar fricative, and [χ], a uvular fricative. These are two different sounds that may distinguish one word from another, and therefore the distinction is a very important one.

Compare https://en.wikipedia.org/wiki/Voiceless_uvular_fricative and https://en.wikipedia.org/wiki/Voiceless_velar_fricative. It's absolutely necessary to fix this, or the Ubuntu font face cannot be used for describing the phonetics of languages that use a uvular stop, which quite a few do – see the first link.

Revision history for this message
Matthew Paul Thomas (mpt) wrote :

Verified fixed in an 0.84 test version.

Changed in ubuntu-font-family:
status: In Progress → Fix Committed
Revision history for this message
Rasmus Underbjerg Pinnerup (pinnerup) wrote :

Any idea when this fix will be implemented in a regular Ubuntu install?

Revision history for this message
Jiang.Qian (jiang-qian-gmail) wrote :

Hi everyone, where I can download even the beta version of fonts with this fix? This is four years ago and I cannot find anywhere online to download the ubuntu font with correct Greek chi. Since I use the font everyday and I am an aspiring Hellenist, I would very much like to try out a beta version for this!

Adolfo Jayme (fitojb)
Changed in fonts-ubuntu (Ubuntu):
status: New → Triaged
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