[jaunty sound] Cirrus Logic CS46xx: Lost Sound after update to 9.04 on Thinkpad

[axoin]

Upgraded to 9.04 Beta and have no sound anymore.
Hardware is ok, tested with 8.04 and had sound without problems but on 9.04 it doesn't work. (Means I can't listen to music/video or hear ubuntu startup jingle).
The only sound i can hear is the beep on shutdown via gnome fast-user-switch and myself through microphone when i rise the volume in alsamixer. Checked alsamixer to unmute all relevant channels.

$ lsb_release -d
Description: Ubuntu 9.04

$ uname -r
2.6.28-11-generic

$ lspci
00:05.0 Multimedia audio controller: Cirrus Logic CS 4614/22/24/30 [CrystalClear SoundFusion Audio Accelerator] (rev 01)

$ lsmod
snd_cs46xx 88296 3
gameport 19340 2 snd_cs46xx
snd_ac97_codec 112292 1 snd_cs46xx
ac97_bus 9856 1 snd_ac97_codec
snd_pcm_oss 46336 0
snd_mixer_oss 22656 1 snd_pcm_oss
snd_pcm 82948 3 snd_cs46xx,snd_ac97_codec,snd_pcm_oss
snd_seq_dummy 10756$ lsmod | grep snd
snd_cs46xx 88296 3
gameport 19340 2 snd_cs46xx
snd_ac97_codec 112292 1 snd_cs46xx
ac97_bus 9856 1 snd_ac97_codec
snd_pcm_oss 46336 0
snd_mixer_oss 22656 1 snd_pcm_oss
snd_pcm 82948 3 snd_cs46xx,snd_ac97_codec,snd_pcm_oss
snd_seq_dummy 10756 0
snd_seq_oss 37760 0
snd_seq_midi 14336 0
snd_rawmidi 29696 2 snd_cs46xx,snd_seq_midi
snd_seq_midi_event 15104 2 snd_seq_oss,snd_seq_midi
snd_seq 56880 7 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 29704 2 snd_pcm,snd_seq
snd_seq_device 14988 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 62628 17 snd_cs46xx,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 15200 1 snd
snd_page_alloc 16904 2 snd_cs46xx,snd_pcm
  0
snd_seq_oss 37760 0
snd_seq_midi 14336 0
snd_rawmidi 29696 2 snd_cs46xx,snd_seq_midi
snd_seq_midi_event 15104 2 snd_seq_oss,snd_seq_midi
snd_seq 56880 7 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 29704 2 snd_pcm,snd_seq
snd_seq_device 14988 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 62628 17 snd_cs46xx,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 15200 1 snd
snd_page_alloc 16904 2 snd_cs46xx,snd_pcm

Please ask if you need further information.

ProblemType: Bug
Architecture: i386
ArecordDevices:
 **** Liste von CAPTURE Geräten ****
 Karte 0: CS46xx [Sound Fusion CS46xx], Gerät 0: CS46xx [CS46xx]
   Untergeordnete Geräte: 1/1
   Untergeordnetes Gerät '0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: max 3639 F.... mixer_applet2
Card0.Amixer.info:
 Card hw:0 'CS46xx'/'Sound Fusion CS46xx at 0xe8122000/0xe8000000, irq 11'
   Mixer name : 'Cirrus Logic CS4297A rev 4'
   Components : 'AC97a:43525914'
   Controls : 45
   Simple ctrls : 26
CurrentDmesg:
 [ 53.926033] ADDRCONF(NETDEV_UP): eth0: link is not ready
 [ 53.928283] e100: eth0: e100_watchdog: link up, 100Mbps, full-duplex
 [ 53.935242] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
 [ 64.832036] eth0: no IPv6 routers present
 [ 114.264379] ondemand governor failed, too long transition latency of HW, fallback to performance governor
DistroRelease: Ubuntu 9.04
Package: alsa-base 1.0.18.dfsg-1ubuntu8
PackageArchitecture: all
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Uname: Linux 2.6.28-11-generic i686

[axoin (axoin)]

Could also be helpful:
http://www.alsa-project.org/db/?f=7ed5731156f9b3e55271bf82e1a3889cd31ce2ff

[axoin (axoin)]

I am sorry, this was very confusing. Following this bug report https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2873, I found the DAC Volume which was muted. It's the last one in alsamixer.
So i have now sound on T21 with 9.04. But why was this muted during update process?

[axoin (axoin)]

I think this can be closed.