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Bug 1690732 - Variable fonts support
Summary: Variable fonts support
Alias: None
Product: Fedora
Classification: Fedora
Component: libreoffice
Version: rawhide
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Caolan McNamara
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2019-03-20 06:29 UTC by Akira TAGOH
Modified: 2019-03-29 19:19 UTC (History)
6 users (show)

Fixed In Version: libreoffice-
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2019-03-29 19:19:32 UTC
Type: Bug

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Document Foundation 103596 0 None None None 2019-03-20 06:31:35 UTC

Description Akira TAGOH 2019-03-20 06:29:47 UTC
Description of problem:
LibreOffice doesn't support Variable fonts.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1.install google-noto-sans-vf-fonts say (make sure if you don't have google-noto-sans-fonts installed because both has same family name) LO and select Noto Sans
3.type something with bold decoration.

Actual results:
No decorated as bold

Expected results:
should be decorated as bold

Additional info:
There are "variable" property in fontconfig to see if a face is capable for VF and "fontvariations" to see what parameters has variations. those two properties are set only for entire space. but for an instance. an instance looks similar like standalone typefaces.

Comment 1 Caolan McNamara 2019-03-20 08:56:04 UTC
Is there something already existing (using harfbuzz or whatever) where this is already working for comparison ?

Comment 2 Akira TAGOH 2019-03-20 09:11:28 UTC
Pango supports it.

Comment 3 Caolan McNamara 2019-03-20 15:09:58 UTC
For the basic cases of the named variants this should have worked out of the box, but apparently we've outsmarted ourselves and overwritten FC_INDEX in out fontconfig pattern which is getting used to transport that info around.

Comment 4 Caolan McNamara 2019-03-21 12:21:41 UTC
Got something working here

Comment 5 Fedora Update System 2019-03-22 10:18:12 UTC
libreoffice- has been submitted as an update to Fedora 30.

Comment 6 Fedora Update System 2019-03-22 19:17:09 UTC
libreoffice- has been pushed to the Fedora 30 testing repository. If problems still persist, please make note of it in this bug report.
See for
instructions on how to install test updates.
You can provide feedback for this update here:

Comment 7 Nikolaus Waxweiler 2019-03-24 01:28:14 UTC
Thanks for fixing this, could you backport the fix to 6.1.x and F29, too?

Comment 8 Fedora Update System 2019-03-29 19:19:32 UTC
libreoffice- has been pushed to the Fedora 30 stable repository. If problems still persist, please make note of it in this bug report.

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