As fas as I can tell this behaviour is intended by upstream. /usr/share/mimelnk/application/postscript.desktop includes the lines
[Property::X-KDE-text] Type=bool Value=true which causes the descibed effect. Setting Value=false makes postscript files render as icon only, like PDF files. I think this was done to make it easy in some apps (for example kate) to show and edit postscript as text. I remember years ago I needed to load postscript into text editors to do some changes (mostly bounding box stuff) quite often. -- cannot disable preview of postscript files https://launchpad.net/bugs/62285 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs