can't hear any sound ...

[Albretch Mueller <lbrtchx@gmail.com>]

 and this is what it is installed
~
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: IXP [ATI IXP], device 0: ATI IXP AC97 [ATI IXP AC97]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: IXP [ATI IXP], device 1: ATI IXP IEC958 [ATI IXP IEC958 (AC97)]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

$ for x in /proc/asound/*; do echo $x:; cat $x; done
/proc/asound/card0:
cat: /proc/asound/card0: Is a directory
/proc/asound/cards:
 0 [IXP            ]: ATIIXP - ATI IXP
                      ATI IXP rev 1 with ALC655 at 0xfe02a000, irq 17
/proc/asound/devices:
  1:        : sequencer
  2: [ 0- 1]: digital audio playback
  3: [ 0- 0]: digital audio playback
  4: [ 0- 0]: digital audio capture
  5: [ 0]   : control
 33:        : timer
/proc/asound/IXP:
cat: /proc/asound/IXP: Is a directory
/proc/asound/oss:
cat: /proc/asound/oss: Is a directory
/proc/asound/pcm:
00-00: ATI IXP AC97 : ATI IXP AC97 : playback 1 : capture 1
00-01: ATI IXP IEC958 : ATI IXP IEC958 (AC97) : playback 1
/proc/asound/seq:
cat: /proc/asound/seq: Is a directory
/proc/asound/timers:
G0: system timer : 3333.333us (10000000 ticks)
G3: HR timer : 0.001us (1000000000 ticks)
P0-0-0: PCM playback 0-0-0 : SLAVE
P0-0-1: PCM capture 0-0-1 : SLAVE
P0-1-0: PCM playback 0-1-0 : SLAVE
/proc/asound/version:
Advanced Linux Sound Architecture Driver Version 1.0.24.

if I try to watch a video with mplayer I get

...
================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 44100 Hz, 2 ch, s16le, 192.0 kbit/13.60% (ratio: 23999->176400)
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio))
================================================================
AO: [pulse] Init failed: Connection refused
Failed to initialize audio driver 'pulse'
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
...

~
 What would you suggest?
~
 thanks
 lbrtchx