1. All the OTF fonts have been loaded correctly, they showed both in the console and in the database file, but none of them worked correctly for the \definefontfamily control sequence.

minionpro                   minionprobold               /home/alan/.fonts/MinionPro-Bold.otf
minionprobold               minionprobold               /home/alan/.fonts/MinionPro-Bold.otf
minionproboldcapt           minionproboldcapt           /home/alan/.fonts/MinionPro-BoldCapt.otf
minionproboldcn             minionproboldcn             /home/alan/.fonts/MinionPro-BoldCn.otf
minionproboldcncapt         minionproboldcncapt         /home/alan/.fonts/MinionPro-BoldCnCapt.otf
minionproboldcndisp         minionproboldcndisp         /home/alan/.fonts/MinionPro-BoldCnDisp.otf
minionproboldcnit           minionproboldcnit           /home/alan/.fonts/MinionPro-BoldCnIt.otf
minionproboldcnitcapt       minionproboldcnitcapt       /home/alan/.fonts/MinionPro-BoldCnItCapt.otf
minionproboldcnitdisp       minionproboldcnitdisp       /home/alan/.fonts/MinionPro-BoldCnItDisp.otf
minionproboldcnitsubh       minionproboldcnitsubh       /home/alan/.fonts/MinionPro-BoldCnItSubh.otf
minionproboldcnsubh         minionproboldcnsubh         /home/alan/.fonts/MinionPro-BoldCnSubh.otf
minionprobolddisp           minionprobolddisp           /home/alan/.fonts/MinionPro-BoldDisp.otf
minionproboldit             minionproboldit             /home/alan/.fonts/MinionPro-BoldIt.otf
minionprobolditalic         minionproboldcnit           /home/alan/.fonts/MinionPro-BoldCnIt.otf
minionprobolditcapt         minionprobolditcapt         /home/alan/.fonts/MinionPro-BoldItCapt.otf
minionprobolditdisp         minionprobolditdisp         /home/alan/.fonts/MinionPro-BoldItDisp.otf
minionprobolditsubh         minionprobolditsubh         /home/alan/.fonts/MinionPro-BoldItSubh.otf
minionproboldsubh           minionproboldsubh           /home/alan/.fonts/MinionPro-BoldSubh.otf
minionprocapt               minionprocapt               /home/alan/.fonts/MinionPro-Capt.otf
minionprocn                 minionprocn                 /home/alan/.fonts/MinionPro-Cn.otf
minionprocncapt             minionprocncapt             /home/alan/.fonts/MinionPro-CnCapt.otf
minionprocndisp             minionprocndisp             /home/alan/.fonts/MinionPro-CnDisp.otf
minionprocnit               minionprocnit               /home/alan/.fonts/MinionPro-CnIt.otf
minionprocnitcapt           minionprocnitcapt           /home/alan/.fonts/MinionPro-CnItCapt.otf
minionprocnitdisp           minionprocnitdisp           /home/alan/.fonts/MinionPro-CnItDisp.otf
minionprocnitsubh           minionprocnitsubh           /home/alan/.fonts/MinionPro-CnItSubh.otf
minionprocnsubh             minionprocnsubh             /home/alan/.fonts/MinionPro-CnSubh.otf
minionprodisp               minionprodisp               /home/alan/.fonts/MinionPro-Disp.otf
minionproit                 minionproit                 /home/alan/.fonts/MinionPro-It.otf
minionproitalic             minionprocnit               /home/alan/.fonts/MinionPro-CnIt.otf
minionproitcapt             minionproitcapt             /home/alan/.fonts/MinionPro-ItCapt.otf
minionproitdisp             minionproitdisp             /home/alan/.fonts/MinionPro-ItDisp.otf
minionproitsubh             minionproitsubh             /home/alan/.fonts/MinionPro-ItSubh.otf
minionpromedium             minionpromedium             /home/alan/.fonts/MinionPro-Medium.otf
minionpromediumcapt         minionpromediumcapt         /home/alan/.fonts/MinionPro-MediumCapt.otf
minionpromediumcn           minionpromediumcn           /home/alan/.fonts/MinionPro-MediumCn.otf
minionpromediumcncapt       minionpromediumcncapt       /home/alan/.fonts/MinionPro-MediumCnCapt.otf
minionpromediumcndisp       minionpromediumcndisp       /home/alan/.fonts/MinionPro-MediumCnDisp.otf
minionpromediumcnit         minionpromediumcnit         /home/alan/.fonts/MinionPro-MediumCnIt.otf
minionpromediumcnitcapt     minionpromediumcnitcapt     /home/alan/.fonts/MinionPro-MediumCnItCapt.otf
minionpromediumcnitdisp     minionpromediumcnitdisp     /home/alan/.fonts/MinionPro-MediumCnItDisp.otf
minionpromediumcnitsubh     minionpromediumcnitsubh     /home/alan/.fonts/MinionPro-MediumCnItSubh.otf
minionpromediumcnsubh       minionpromediumcnsubh       /home/alan/.fonts/MinionPro-MediumCnSubh.otf
minionpromediumdisp         minionpromediumdisp         /home/alan/.fonts/MinionPro-MediumDisp.otf
minionpromediumit           minionpromediumit           /home/alan/.fonts/MinionPro-MediumIt.otf
minionpromediumitcapt       minionpromediumitcapt       /home/alan/.fonts/MinionPro-MediumItCapt.otf
minionpromediumitdisp       minionpromediumitdisp       /home/alan/.fonts/MinionPro-MediumItDisp.otf
minionpromediumitsubh       minionpromediumitsubh       /home/alan/.fonts/MinionPro-MediumItSubh.otf
minionpromediumsubh         minionpromediumsubh         /home/alan/.fonts/MinionPro-MediumSubh.otf
minionpronormal             minionprocapt               /home/alan/.fonts/MinionPro-Capt.otf
minionproregular            minionproregular            /home/alan/.fonts/MinionPro-Regular.otf
minionprosemibold           minionprosemibold           /home/alan/.fonts/MinionPro-Semibold.otf
minionprosemiboldcapt       minionprosemiboldcapt       /home/alan/.fonts/MinionPro-SemiboldCapt.otf
minionprosemiboldcn         minionprosemiboldcn         /home/alan/.fonts/MinionPro-SemiboldCn.otf
minionprosemiboldcncapt     minionprosemiboldcncapt     /home/alan/.fonts/MinionPro-SemiboldCnCapt.otf
minionprosemiboldcndisp     minionprosemiboldcndisp     /home/alan/.fonts/MinionPro-SemiboldCnDisp.otf
minionprosemiboldcnit       minionprosemiboldcnit       /home/alan/.fonts/MinionPro-SemiboldCnIt.otf
minionprosemiboldcnitcapt   minionprosemiboldcnitcapt   /home/alan/.fonts/MinionPro-SemiboldCnItCapt.otf
minionprosemiboldcnitdisp   minionprosemiboldcnitdisp   /home/alan/.fonts/MinionPro-SemiboldCnItDisp.otf
minionprosemiboldcnitsubh   minionprosemiboldcnitsubh   /home/alan/.fonts/MinionPro-SemiboldCnItSubh.otf
minionprosemiboldcnsubh     minionprosemiboldcnsubh     /home/alan/.fonts/MinionPro-SemiboldCnSubh.otf
minionprosemibolddisp       minionprosemibolddisp       /home/alan/.fonts/MinionPro-SemiboldDisp.otf
minionprosemiboldit         minionprosemiboldit         /home/alan/.fonts/MinionPro-SemiboldIt.otf
minionprosemibolditcapt     minionprosemibolditcapt     /home/alan/.fonts/MinionPro-SemiboldItCapt.otf
minionprosemibolditdisp     minionprosemibolditdisp     /home/alan/.fonts/MinionPro-SemiboldItDisp.otf
minionprosemibolditsubh     minionprosemibolditsubh     /home/alan/.fonts/MinionPro-SemiboldItSubh.otf
minionprosemiboldsubh       minionprosemiboldsubh       /home/alan/.fonts/MinionPro-SemiboldSubh.otf
minionprosubh               minionprosubh               /home/alan/.fonts/MinionPro-Subh.otf

2. I've tried every single opinion, Kepler, KeplerStd, Kepler Std, KeplerStd-Regular, keplerstd whatever, since I'm being quite desperate, but none of them worked.

2014年3月10日 上午6:12于 "Wolfgang Schuster" <schuster.wolfgang@gmail.com>写道:

Am 07.03.2014 um 14:35 schrieb 罗晨星 <chenxing.luo@gmail.com>:

I am using Ubuntu 13.10 with ConTeXt daily build and LuaTeX daily build. My ConTeXt version is 2014.02.14 17:07, LuaTeX version beta-0.78.3 (TeX Live 2014/dev/Debian) (rev 4850) .

While there are some problems with using the newly added feature of build-in support of simplefonts.

I was using something like 

\definefontfamily[mainface][serif][Kepler]
\setupbodyfont[mainface]
\starttext
Hello World!

\stoptext

It would end up with using Latin Modern font.

The log is like this:

system > 'cont-new.mkiv' loaded
(/usr/share/texmf/tex/context/base/cont-new.mkiv)
system > files > jobname '003', input './003', result '003'
fonts > latin modern fonts are not preloaded
languages > language 'en' is active
(/home/alan/tex/test/003.tex
fonts > preloading latin modern fonts (math)
{/usr/share/texmf/fonts/map/dvips/lm/lm-math.map}{/usr/share/texmf/fonts/map/dvips/lm/lm-rm.map}{/usr/share/texmf/fonts/map/pdftex/context/mkiv-base.map}
fonts > 'fallback modern mm 12pt' is loaded
fonts > preloading latin modern fonts (mono)
fonts > 'fallback modern tt 12pt' is loaded
fonts > defining > font with asked name 'unknown' is not found using lookup 'file'
fonts > defining > unknown font 'unknown', loading aborted
fonts > defining > unable to define 'unknown' as 'mainface-12pt-rm-tf-0--0'
backend > xmp > using file '/usr/share/texmf/tex/context/base/lpdf-pdx.xml'

However, when I use something like Times New Roman (TTF), Utopia (TTF), Georgia(TTF), FZShuSong-Z01 (TTF Chinese font) it would be working all right, fonts applied, no error reported.

But like in the example, Kepler (OTF), Minion Pro (OTF), Utopia Std (OTF) would failed to be applied. It is as if it would fail every OTF font.

When I am using some font in the legacy simplefonts module mode, something like:

\usemodule[simplefonts]
\setmainfont[Kepler]
\starttext
Hello World!

\stoptext

Would be working alright. Logged as below:

fonts > latin modern fonts are not preloaded
languages > language 'en' is active
(/home/alan/tex/test/003.tex
resolvers > modules > 'simplefonts' is loaded
(/usr/share/texmf/tex/context/third/simplefonts/t-simplefonts.mkiv
loading > ConTeXt User Module / Simplefonts
<+ /usr/share/texmf/tex/context/third/simplefonts/t-simplefonts.lua>){/usr/share/texmf/fonts/map/dvips/lm/lm-math.map}{/usr/share/texmf/fonts/map/dvips/lm/lm-rm.map}{/usr/share/texmf/fonts/map/pdftex/context/mkiv-base.map}
backend > xmp > using file '/usr/share/texmf/tex/context/base/lpdf-pdx.xml'
pages > flushing realpage 1, userpage 1

 ) )</home/alan/.fonts/KeplerStd-Subh.otf>

So what's the problem? Is there anything I should look into?

If it is a problem with TeXLive how can I use the ConTeXt Standalone without conflict with the previous installed TeXLive (Since I am also using LaTeX) ?

1. Make sure context has added the fonts to its database, you can check this for the minion pro fonts with the following command:

    mtxrun --script fonts --list --all minionpro*

When you don’t see a list with the file for the minion pro font you can try to update the database with

    mtxrun --script fonts --refresh

2. Use the correct name in the third argument of \definefontfamily, e.g. “Kepler” has to be replaced with “Kepler Std”.

Wolfgang