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I'm running Arch Linux, using the Emerald window decorator. Emerald crashes in the following situations:

  • A window with at least one Chinese character in the title is opened.
  • An open window's title changes to something with at least one Chinese character

When it crashes, it gives the following stderr:

emerald: cairo-scaled-font.c:459: _cairo_scaled_glyph_page_destroy: Assertion `!scaled_font->cache_frozen' failed.

Which is immediately followed with what seems to be a standard C++ error on stdout:

Aborted (core dumped)

A few extra notes:

  • I initially thought this was some problem with CJK encoding. However, it doesn't seem to happen when I load a page with Korean or Japanese in the title. Only Chinese. Of course, it's still entirely possible that some CJK package will fix my problems.

  • Emerald version: 0.8.8

  • Compiz version: 0.8.9

  • Desktop Environment: Mate Desktop 1.6.1

  • Linux Kernel: 3.12.1

  • Nvidia driver version: 331.20

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    That's bug. Report it. Assertions in production code imply a problem spot. It may be something in the configuration of the cairo stack, so start by reporting it downstream, to Arch, first.
    – goldilocks
    Nov 25, 2013 at 15:37
  • @goldilocks Sounds good. I'll report it on the AUR.
    – dotVezz
    Nov 25, 2013 at 15:40

1 Answer 1

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Don't know if this helps much, but I saw this same error in Lubuntu. Lxterminal and several other apps would crash. However, xterm ran, and when I tried to launch lxterminal from xterm, I saw that error message.

There is a workaround in Lubuntu. In Preferences->Customize Look and Feel, under the Widgets tab (the default), change "Lubuntu-default" to anything else, such as "Mist".

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