Red Hat Bugzilla – Bug 1240807
Non-latin glyphs generated by ligatures fi ff fl
Last modified: 2015-12-18 05:01 EST
Created attachment 1049535 [details]
The letters in question
Digrams fi ff fl became unreadable after latest update to DejaVu Sans and DejaVu Sans Bold, being transformed into another script. See attachment.
$ rpm -qa | grep dejavu
Created attachment 1049536 [details]
Font confirmation by Firefox dev tools
Created attachment 1049537 [details]
Bold example from this bug report
Getting f's appear as unreadable character when the "DejaVu Serif" is specified in CSS.
This starting happening with the most recent update to the Dejavu fonts:
Created attachment 1049597 [details]
PNG image showing error
Can confirm this, from a new installation of fedora 22, also does this.
Created attachment 1065335 [details]
Image demostrating ligatures
(In reply to Vasco Rodrigues from comment #5)
> Can confirm this, from a new installation of fedora 22, also does this.
After updating packages, seems fixed.
Please check if it exists somewhere else than in the browser, firefox never handled well font updates, it usually needs a restart to clear such effects
(In reply to Nicolas Mailhot from comment #8)
> Please check if it exists somewhere else than in the browser, firefox never
> handled well font updates, it usually needs a restart to clear such effects
I can't test right now because I downgraded. Would it be ok to test in LibreOffice after upgrading again?
I don't remember if LibreOffice shares the same bug. windows-originated apps tend to suck at handling font updates (because on windows, you do not update fonts and when you do you need rebooting anyway)
GNOME used to be the gold standard, since behdad fixed most warts there, so I'd test in gedit (I hope no one configures away font setup there)
I cannot reproduce the issue with gedit or Firefox on fedora 22. However, it's still present in the fedora 21 package.
(Sorry for the wait, I had to get hold of the other machine with fedora 22.)
prolly some kind of fontconfig cache problem ?
Given that it is the cache problem, does fc-cache -f help? if not, I don't think it is.
FWIW does this issue only happens after updating packages? or does it keep to be presented after restart apps or desktop even?
Ok, I updated the package again on fedora 21... the bug displays itself after some seconds on Firefox, e.g. with DejaVu Sans. With DejaVu Sans Bold another funny one is that "€" is displayed as "Rs".
fc-cache -f doesn't help. I'll try not to downgrade before next reboot to tell you how a restart affects the bug...
After reboot things are better, but not quite right. I still see occasional random glyphs displayed for all sorts of digrams with "f" (and perhaps others), in a seemingly different font too. The difference now is that if I select the text then the display glitch is corrected.
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Is this bug still exist in F23? Is not please close else move to F23.
We don't want to loose any valuable bug :)
Fedora 21 changed to end-of-life (EOL) status on 2015-12-01. Fedora 21 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.
If you can reproduce this bug against a currently maintained version of
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Thank you for reporting this bug and we are sorry it could not be fixed.
Created attachment 1107057 [details]
Example from today in Fedora 21 after multiple reboots