netbsd-5.0, no sound output on thinkpad x61s

[mvertes%free.fr@localhost]

Hello,

I installed netbsd-5.0, amd64 on a thinkpad x61s. I can't get sound output. 

I remember it was ok with 4.99.72. 

The hints published on the wiki http://wiki.netbsd.se/IBM_Thinkpad_X61 seem to 
be obsolete (no inputs.sel22.source or outputs.unknown13.eapd).

Is it a regression ? Does it work for anyone ?

Thanks,

Marc