gsの文字化け
Lyxでbeamer
→dviからdvipdfmxでpdfをつくるとうまくいかない（未だ原因不明）
→dviからpdvips, ps2pdfだとうまくいく
→しかし，psが日本語文字化け
→どうやらgsが原因ぽい
→たぶん，/usr/share/ghostscript/8.70/Resource/Init/cidfmapを編集すれば良いみたい
→そうだった（問題解決）
gsのエラーメッセージ
GPL Ghostscript 8.70 (2009-07-31) Copyright (C) 2009 Artifex Software, Inc. All rights reserved. This software comes with NO WARRANTY: see the file PUBLIC for details. Can't find (or can't open) font file /usr/share/ghostscript/8.70/Resource/Font/GothicBBB-Medium-H. Can't find (or can't open) font file GothicBBB-Medium-H. Querying operating system for font files... Can't find (or can't open) font file /usr/share/ghostscript/8.70/Resource/Font/GothicBBB-Medium-H. Can't find (or can't open) font file GothicBBB-Medium-H. Didn't find this font on the system! Substituting font Courier for GothicBBB-Medium-H. Loading NimbusMonL-Regu font from /usr/share/fonts/Type1/n022003l.pfb... 2607872 1137979 7363256 5981270 1 done. Can't find (or can't open) font file /usr/share/ghostscript/8.70/Resource/Font/Ryumin-Light-H. Can't find (or can't open) font file Ryumin-Light-H. Didn't find this font on the system! Substituting font Courier for Ryumin-Light-H. >>showpage, press <return> to continue<<
cidfmapに追加したもの．
/IPAMincho << /FileType /TrueType /Path (/usr/share/fonts/TTF/ipam.ttf) /CSI [(Japan1) 6] >> ; /IPAGothic << /FileType /TrueType /Path (/usr/share/fonts/TTF/ipag.ttf) /CSI [(Japan1) 6] >> ; /Ryumin-Light /IPAMincho /GothicBBB-Medium /IPAGothic
めでたく，dvipdfmx, ps2pdf どちらでも tex を pdf にできるようになったのだが，
できたpdfのフォントが違う．ps2pdfはフォントが細くて見難い．なぜ？
追記
このままだと ghostscript のアップデートでcidfmapが上書きされるので，
/etc/pacman.confに
NoUpgrade = usr/share/ghostscript/8.70/Resource/Init/cidfmap
を追加．
