On kde, I only hear sound at Desktop login and in System Settings/General/Notifications -> arrow to test
And if in command line I put:
aplay -D plughw:1,0 /usr/share/boswars/sounds/grenadier_g_hit.wav
but nor with
aplay -D hw:1,0 /usr/share/boswars/sounds/grenadier_g_hit.wav
aplay -D plughw:0,0 /usr/share/boswars/sounds/grenadier_g_hit.wav
So it seems to be related to Kde Phonon(because Player Settings: Kde Sound System is chosen) which gets power but bad manages sound. But the problem is that in Multimedia> System Settings > Device Preference, there is choice between Pulseaudio,Default, HDA ATI SB, CA0106 but no "Kde Sound System"
I add that all goes ok in Ubuntu KDE
Do you have any idea?