upgrading Cantarell causes visual glitches in GNOME Shell until restarted

Bug #1600160 reported by Frédéric Meynadier
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
fonts-cantarell (Debian)
Confirmed
Unknown
fonts-cantarell (Ubuntu)
Triaged
Medium
Unassigned

Bug Description

Upgrading fonts-cantarell may cause visual glitches in GNOME Shell. You need to restart your computer after upgrading this font.

Original Bug Report
===================

Hello,

On Ubuntu 16.04 LTS, with unattended upgrades, using gnome3 as desktop environment, I have just witnessed the following problem :

- The upgrade to the latest release occurred a few minutes ago :

$ tail /var/log/apt/history.log
[...]
Start-Date: 2016-07-08 11:10:07
Commandline: /usr/bin/unattended-upgrade
Upgrade: fonts-cantarell:amd64 (0.0.21-1, 0.0.24-1~ubuntu16.04.0), lsb-release:amd64 (9.20160110ubuntu0.1, 9.20160110ubuntu0.2), lsb-base:amd64 (9.20160110ubuntu0.1, 9.20160110ubuntu0.2), tzdata:amd64 (2016d-0ubuntu0.16.04, 2016f-0ubuntu0.16.04)
End-Date: 2016-07-08 11:10:15

- Instantly, all characters in the top bar (open windows, date, dropdown menus) have been replaced by small solid rectangles (sorry, did not think of capturing a screenshot). If important : language is french (locale : fr_FR.UTF-8)

- Logging out from my gnome3 session, and then logging back in fixes the problem.

I would have expected the font package upgrade to go more smoothly (possibly refresh the gnome3 interface at the end of the process ?)

Thanks for your efforts,

Revision history for this message
Jeremy Bícha (jbicha) wrote :

While I did not experience this bug, another user did:
comment #6 on bug 1592833

The fonts are not updated very often in stable Ubuntu releases so maybe you won't experience this bug again in Ubuntu 16.04 LTS.

Changed in fonts-cantarell (Ubuntu):
status: New → Confirmed
Revision history for this message
Frédéric Meynadier (frederic-meynadier-b) wrote :

Ok, thanks. I also think this will probably not occur very often, but I just thought it would be worth documenting to help polishing the upgrade process...

Revision history for this message
Jeremy Bícha (jbicha) wrote :

I experienced this when I upgraded an Ubuntu GNOME 16.04 install. :(

Jeremy Bícha (jbicha)
summary: - upgrading package causes interface text to be replaced by squares
+ upgrading font causes interface text to be replaced by squares
Jeremy Bícha (jbicha)
summary: - upgrading font causes interface text to be replaced by squares
+ upgrading Cantarell causes visual glitches in GNOME Shell until
+ restarted
description: updated
Changed in fonts-cantarell (Ubuntu):
status: Confirmed → Triaged
importance: Undecided → Medium
no longer affects: ubuntu-gnome
Revision history for this message
Nikolaus Waxweiler (madleser) wrote :

You must restart all applications actively using a font if you upgrade it in-place. This has to do with the glyph cache (FreeType's?) getting messed up IIRC.

Changed in fonts-cantarell (Debian):
status: Unknown → Confirmed
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.