I think you may see some errors about missing glyphs if you specify -vp. This is an outstanding bug report, by the way.

Note: you should see error logs written on stdout if you start gnash with the -v switch, when fonts can't be found on the system, do you ?

I've heard a discussion about this on mailing list:
http://lists.gnu.org/archive/html/gnash-dev/2012-11/msg00005.html

It seems that Microsoft Windows do generate the italic/bold/bold-italic font style automagically from plain face.
For example: http://www.freeimagehosting.net/newuploads/hmcpe.png
Microsoft Sans Serif (for both bold and italic) and Tahoma
(for italic) relied on this capability.


I've created flash file that's likely to expose the problem,
by creating text fields that tries to use plain/bold/italic/bold+italic face from a modified font that have only 'plain' (no bold/italic/bold+italic) face.

I used BitStream Vera Sans Mono 1.10 with font name modified to "Gnash FontFace Tester Mono" for preventing conflict and substitution. Only plain face was installed.


http://www.freeimagehosting.net/newuploads/sfj57.png
This is a correct result from Macromedia Flash Player 7.
(You will notice that bold, italic, bold-italic face were automatically generated)

http://www.freeimagehosting.net/newuploads/t7dt8.png
This is an image result from Gnash.
(You will see that all text were displayed as plain face)

http://www.mediafire.com/download.php?v06wxuy5ot1tuov
This is my test flash file (created from Macromedia Flash MX 2004),
along with test font and reference screenshots. Also attached here.


System: Debian GNU/Linux 5.0 "Lenny" i386
Gnash: gnash 0.8.10-1~lenny from getgnash.org APT repository