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alsamixer -Dhwho impostato alsamixer così come in screenshot


da notare che il volume di "master m" si disattiva sempre nonostante l'ho più volte riattivato
ho provato a fare un test
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speaker-test -Dplug:surround51 -c6 -l1 -twav
speaker-test 1.0.22
La periferica di riproduzione è plug:surround51
I parametri dello stream sono 48000Hz, S16_LE, 6 canali
File WAV
Frequenza impostata a 48000Hz (richiesti 48000Hz)
La dimensione del buffer va da 6 a 5461
La durata del periodo va da 3 a 2730
Usare la dimensione massima di buffer 5460
Fasi = 4
period_size impostato a 1365
buffer_size impostato a 5460
0 - Frontale sinistro
4 - Centrale
1 - Frontale destro
3 - Posteriore destro
2 - Posteriore sinistro
5 - LFE
Durata per periodo = 8,533782
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cat /etc/pulse/daemon.conf
# This file is part of PulseAudio.
#
# PulseAudio is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# PulseAudio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with PulseAudio; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA.
## Configuration file for the PulseAudio daemon. See pulse-daemon.conf(5) for
## more information. Default values a commented out. Use either ; or # for
## commenting.
; daemonize = no
; fail = yes
; allow-module-loading = yes
; allow-exit = yes
; use-pid-file = yes
; system-instance = no
; enable-shm = yes
; shm-size-bytes = 0 # setting this 0 will use the system-default, usually 64 MiB
; lock-memory = no
; cpu-limit = no
; high-priority = yes
; nice-level = -11
; realtime-scheduling = yes
; realtime-priority = 5
; exit-idle-time = 20
; scache-idle-time = 20
; dl-search-path = (depends on architecture)
; load-default-script-file = yes
; default-script-file =
; log-target = auto
; log-level = notice
; log-meta = no
; log-time = no
; log-backtrace = 0
resample-method = speex-float-1
; enable-remixing = yes
; enable-lfe-remixing = no
flat-volumes = no
; rlimit-fsize = -1
; rlimit-data = -1
; rlimit-stack = -1
; rlimit-core = -1
; rlimit-as = -1
; rlimit-rss = -1
; rlimit-nproc = -1
; rlimit-nofile = 256
; rlimit-memlock = -1
; rlimit-locks = -1
; rlimit-sigpending = -1
; rlimit-msgqueue = -1
; rlimit-nice = 31
; rlimit-rtprio = 9
; rlimit-rttime = 1000000
; default-sample-format = s16le
default-sample-rate = 48000
default-sample-channels = 6
; default-channel-map = front-left,front-right
default-fragments = 8
default-fragment-size-msec = 10
default-sample-rate = 48000
default-sample-channels = 6
che prima erano:
; default-sample-rate = 41800
; default-sample-channels = 2
Se serve altro vi prego di farmi sapere, grazie!
Riporto di seguito lspci, aplay -l, cat /proc/asound/card*/codec* | grep -i codec, dmesg | grep -i hda, ps aux | grep pulse:
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lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400/KT600 AGP] Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8235 PCI Bridge
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74)
01:00.0 VGA compatible controller: ATI Technologies Inc RV635 PRO AGP [Radeon HD 3650]
ciccoale@ciccobuntu:~$ aplay -l
**** Lista di PLAYBACK dispositivi hardware ****
scheda 0: V8235 [VIA 8235], dispositivo 0: VIA 8235 [VIA 8235]
Sottoperiferiche: 4/4
Sottoperiferica #0: subdevice #0
Sottoperiferica #1: subdevice #1
Sottoperiferica #2: subdevice #2
Sottoperiferica #3: subdevice #3
scheda 0: V8235 [VIA 8235], dispositivo 1: VIA 8235 [VIA 8235]
Sottoperiferiche: 0/1
Sottoperiferica #0: subdevice #0
ciccoale@ciccobuntu:~$ cat /proc/asound/card*/codec* | grep -i codec
cat: /proc/asound/card0/codec97#0: È una directory
ciccoale@ciccobuntu:~$ dmesg | grep -i hda
ciccoale@ciccobuntu:~$ ps aux | grep pulse
ciccoale 1400 0.0 0.2 86312 4788 ? S<sl 16:38 0:00 /usr/bin/pulseaudio --start --log-target=syslog
ciccoale 1410 0.0 0.1 10736 2952 ? S 16:38 0:00 /usr/lib/pulseaudio/pulse/gconf-helper
ciccoale 3211 0.0 0.0 3340 868 pts/0 S+ 17:55 0:00 grep --color=auto pulse
