Ubuntu12.04中的Firefox停止识别Helvetica和其他字体

Question

Sunddely Firefox停止识别TTF。所有指定为Helvetica的特殊字体的文本现在都以Arial或其他普通字体显示。

最近一次更新日志中的更改是在5月3日。我不知道发生了什么事。有人知道吗？

012-05-03 15:08:38 upgrade firefox-globalmenu 11.0+build1-0ubuntu4 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:08:38 status half-configured firefox-globalmenu 11.0+build1-0ubuntu4
012-05-03 15:08:39 status unpacked firefox-globalmenu 11.0+build1-0ubuntu4
012-05-03 15:08:39 status half-installed firefox-globalmenu 11.0+build1-0ubuntu4
012-05-03 15:08:39 status half-installed firefox-globalmenu 11.0+build1-0ubuntu4
012-05-03 15:08:39 status unpacked firefox-globalmenu 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:08:39 status unpacked firefox-globalmenu 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:08:39 upgrade firefox 11.0+build1-0ubuntu4 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:08:39 status half-configured firefox 11.0+build1-0ubuntu4
012-05-03 15:08:39 status unpacked firefox 11.0+build1-0ubuntu4
012-05-03 15:08:39 status half-installed firefox 11.0+build1-0ubuntu4
012-05-03 15:08:41 status half-installed firefox 11.0+build1-0ubuntu4
012-05-03 15:08:41 status half-installed firefox 11.0+build1-0ubuntu4
012-05-03 15:08:41 status half-installed firefox 11.0+build1-0ubuntu4
012-05-03 15:08:42 status half-installed firefox 11.0+build1-0ubuntu4
012-05-03 15:08:42 status half-installed firefox 11.0+build1-0ubuntu4
012-05-03 15:08:42 status unpacked firefox 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:08:42 status unpacked firefox 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:08:42 upgrade firefox-gnome-support 11.0+build1-0ubuntu4 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:08:42 status half-configured firefox-gnome-support 11.0+build1-0ubuntu4
012-05-03 15:08:42 status unpacked firefox-gnome-support 11.0+build1-0ubuntu4
012-05-03 15:08:42 status half-installed firefox-gnome-support 11.0+build1-0ubuntu4
012-05-03 15:08:42 status half-installed firefox-gnome-support 11.0+build1-0ubuntu4
012-05-03 15:08:43 status unpacked firefox-gnome-support 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:08:43 status unpacked firefox-gnome-support 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:20 configure firefox 12.0+build1-0ubuntu0.12.04.1 <none>
012-05-03 15:09:20 status unpacked firefox 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:20 status unpacked firefox 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:20 status unpacked firefox 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:21 status unpacked firefox 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:21 status unpacked firefox 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:21 status half-configured firefox 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:21 status installed firefox 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:21 configure firefox-globalmenu 12.0+build1-0ubuntu0.12.04.1 <none>
012-05-03 15:09:21 status unpacked firefox-globalmenu 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:21 status half-configured firefox-globalmenu 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:21 status installed firefox-globalmenu 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:21 configure firefox-gnome-support 12.0+build1-0ubuntu0.12.04.1 <none>
012-05-03 15:09:21 status unpacked firefox-gnome-support 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:21 status half-configured firefox-gnome-support 12.0+build1-0ubuntu0.12.04.1
012-05-03 15:09:21 status installed firefox-gnome-support 12.0+build1-0ubuntu0.12.04.1

Twitter截图：在出现Helvetica之前，现在呈现了丑陋的Arial字体。

Answer 1

最近，我调试了一个字体问题，发现FC_DEBUG环境变量很有用。您可以在命令提示符下运行firefox

FC_DEBUG=1 firefox > debug.out

让firefox启动，然后退出它。debug.out文件将列出字体、搜索对象和找到的内容。

您可能还会发现fc-match命令很有用。你可以打字

fc-match helvetica

若要查看将使用哪种字体，请执行以下操作。也许这会给你一个提示，说明出了什么问题。