I can hear audio CD (in console) with kernel 2.6.30 but not with 2.6.32-5-686 (squeeze)

[Gérard Robin <g.robin3@free.fr>]

Hello,
Sorry, I am not developper, but I stick with a problem with my laptop
acer aspire 5102 wlmi (squeeze fxce4)
 aplay -l
card 0: SB [HDA ATI SB], device 0: ALC883 Analog [ALC883 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

lspci | grep Audio
00:14.2 Audio device: ATI Technologies Inc IXP SB4x0 High Definition Audio Controller (rev 01)

I have made the transition from lenny to squeeze and I have installed
the package debian linux-image-2.6.32-5-686 and the kernel 2.6.30 I
made a
package .deb myself (with make-kpkg)

With the kernel  2.6.30 all works fine I can hear, in console the audio CD
with cdcd, cdtool etc ... and alsamixer gives the control CD.
with the kernel 2.6.32-5-686 alsamixer doesn't give the control CD and
for example cdcd can display the tracks of the CD but no sound.
one bug report has been submitted :
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=602752
against cdcd.
But I wonder if the problem comes from cdcd, cdtool ... or if there is
problem with the kernel 2.6.32-5-686 because on a desktop (squeeze
gnome) I have made the transition lenny -> squeeze and with the kernel
2.6.32-5-686 cdcd works like charm. I can hear the CD in console.
lspci gives for this desktop :
00:05.0 Multimedia audio controller: nVidia Corporation nForce Audio Processing Unit (rev a2)
00:06.0 Multimedia audio controller: nVidia Corporation nForce2 AC97 Audio Controler (MCP) (rev a1)

Please, can someone tell me if there is a solution and if so, how to
solve the problem on my laptop.
tia.

--
Gérard