No sounds with kmid

[Michelasso <qzerty@gmail.com>]

Hello everybody, 
I am using kmid 3.4.2-2 from sid for amd64. I have setup timidity for
midi emulation, and I can play .mid files with pmidi, but not with
kmid:
pmidi -l gives

Port     Client name                       Port name
 62:0     Midi Through                      Midi Through Port-0
128:0     TiMidity                          TiMidity port 0
128:1     TiMidity                          TiMidity port 1
128:2     TiMidity                          TiMidity port 2
128:3     TiMidity                          TiMidity port 3

pmidi -p128:0 file.mid works; 
if I tell kmid to use the same  port in its settings I get no sound.
Any help is appreciated.