I'm having exactly the same problem with my
emu10k1 (SBLive 5.1)
sound card. All the MIDI programs I try seem to _think_ they're
working... but still no sound! (Other audio works fine, though.) I
have used the SuSE and Fedora distros, but same thing.
Any other ideas?
Just to verify: you loaded a valid soundfont into the wavetable synth,
and you're sure you're sending the MIDI command sequence to the wavetable
synth?
-c