Bad vertical hinting for web fonts (Windows only)

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()

7 years ago
7 years ago

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(Reporter: zwol, Unassigned)

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(1 attachment)

(Reporter)

Description

7 years ago
Created attachment 615432 [details]
screen shot of bad rendering

http://refactoringmanifesto.org/ uses a web font ("Puritan20Bold") that Windows (with DirectWrite) renders poorly: specifically, certain letters (b, u, d, possibly others) are drawn with an x-height that is taller than the other letters.

This does *not* happen on Linux; therefore, while it is probably *related* to bug 741963, I do not think it is the same bug.  On the other hand, Chrome on the same computer shows the same bad rendering, so it's presumably an issue with system font-drawing code.  But the odds of getting that fixed in Windows are slim, I think, so we oughta be looking for a workaround.

Screen shot attached.

about:support graphics block from the computer with the problem:

Adapter Description      NVIDIA NVS 3100M
Vendor ID                10de
Device ID                0a6c
Adapter RAM              512
Adapter Drivers          nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
Driver Version           8.17.12.8562
Driver Date              10-15-2011
Adapter RAM (GPU #2)     Unknown
Adapter Drivers (GPU #2) Unknown
Direct2D Enabled         true
DirectWrite Enabled      true (6.1.7601.17563)
ClearType Parameters     ClearType parameters not found
WebGL Renderer           Google Inc. -- ANGLE (NVIDIA NVS 3100M) --
                         OpenGL ES 2.0 (ANGLE 0.0.0.809)
GPU Accelerated Windows  1/1 Direct3D 10
(Reporter)

Updated

7 years ago
OS: Linux → Windows 7
Hardware: x86_64 → x86
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