We don't need to check for every exotic package and this one is also very large. Due to nowadays new speed limit of some CTAN servers, downloading the package takes ages and therefore a fresh installation on Windows often times out. The advantage of the automatic package installation on Windows is therefore a disadvantage in case of this package.
\TestPackage{ae}
\TestPackage{bera}
\TestPackage{biolinum-type1}
-\TestFont[glic1000]{cbgreek}% for Greek
+%\TestFont[glic1000]{cbgreek}% for Greek % suported by LyX but too large to force downloading
\TestPackage{ccfonts}
\TestFont[ccr10]{concrete} % required by ccfonts
\TestFont[eorm10]{ecc} % required by ccfonts