Bug 788688 – x11-libs/pango-1.48.4 letter spacing problem

• Status: UNCONFIRMED
• Product: Gentoo Linux

[Description Ognian Tenchev 2021-05-07 06:55:03 UTC]

Upgrading pango from 1.42.4-r2 to 1.48.4 make some letters squished into each other. 

See attached images - this is from pidgin which is still gtk2 and font is Tahoma 8 regular.

Reproducible: Always

[Comment 1 Ognian Tenchev 2021-05-07 06:55:35 UTC]

Created attachment 706452 [details]
with pango-1.42.4-r2

[Comment 2 Ognian Tenchev 2021-05-07 06:56:00 UTC]

Created attachment 706455 [details]
with pango-1.48.4

[Comment 3 Ionen Wolkens 2021-05-07 07:31:00 UTC]

Is it a widespread issue or only with that application? Or only gtk2?

[Comment 4 Ognian Tenchev 2021-05-07 07:37:46 UTC]

it seems it affect GTK3 too. See next attachment which is from Celluloid 0.2 (gtk3)

[Comment 5 Ognian Tenchev 2021-05-07 07:38:06 UTC]

Created attachment 706467 [details]
Celluloid 0.2 gtk3

[Comment 6 Ognian Tenchev 2021-05-09 17:15:48 UTC]

Simply downgrade to pango-1.42.4-r2 fixed issue.

Any other version above have same issue. I tried:
pango-1.44.7.ebuild
pango-1.48.3.ebuild
pango-1.48.4-r1.ebuild
All of these produce wrong letter spacing with both gtk2 and gtk3.

[Comment 7 Niklāvs Koļesņikovs 2021-05-09 20:11:42 UTC]

Without looking too deeply into this, very likely the same issue: https://bugzilla.redhat.com/show_bug.cgi?id=1767499

[Comment 8 Matt Turner 2023-02-20 18:46:28 UTC]

Still a problem?

[Comment 9 Ognian Tenchev 2023-02-20 19:12:04 UTC]

Sure it is, but it will never be fixed from what I have read about pango/harfbuzz & etc about bitmap fonts or something like that. Solution is to abandon Tahoma & such fonts.