diff --git a/development/autotests/ignoredTests b/development/autotests/ignoredTests
index 544846bffd..18485414c9 100644
--- a/development/autotests/ignoredTests
+++ b/development/autotests/ignoredTests
@@ -1,11 +1,22 @@
-# Entries may be regular expressions
-# they will be automatically enclosed with '^' and '$'
+# Regular expressions for test combinations known to fail permanently.
 #
+# Patterns will be automatically enclosed with '^' and '$'.
+# Combinations matching these patterns will be skipped
+# by the cmake test configuration.
+
 # latex8.sty is obsolete and replaced by IEEEconf.
 check_load/templates/attic/latex8
 export/templates/attic/latex8_pdf.*
-export/.*/ko(/|_).*_texF
-#
-# Are they ever expected to success?
+export/templates/attic/latex8_(dvi|dvi3_.*)
+
+# CJK fails with LuaTeX or XeTeX and 8-bit fonts:
+export/examples/ko/splash.*texF
+export/.*/zh_CN/.*texF
+
+# Japanese manuals use language "japanese" wich is tied to "platex"
+# (automatically set instead of (plain) LaTeX).
+# For export with other engines, the language must be set to "Japanese (CJK).
+# see also INVERTED.*export/export/ja/wrong_auto_encoding_(dvi|pdf(|3))
+# For a discussion of alternatives for Japanese with LaTeX , see also
+# http://www.preining.info/blog/2014/12/writing-japanese-in-latex-part-1-introduction/
 export/.*/ja/.*_(pdf[245]|dvi3).*
-#